`CVE-2020-9548` FasterXML jackson-databind

Affected software	FasterXML jackson-databind
Severity	9.8 Critical CVSS 3.1 3 scores
Fixed in	`2.9.10.4`, `2.8.11.6`, `2.7.9.7`
Weakness	Deserialization of untrusted data (CWE-502)
Published	2 Mar 2020
Updated	8 Oct 2026

Description

FasterXML jackson-databind 2.x before 2.9.10.4 mishandles the interaction between serialization gadgets and typing, related to br.com.anteros.dbcp.AnterosDBCPConfig (aka anteros-core).

Exploitation status

Exploited

Real-world exploitation reported by VulnCheck KEV. CISA has not confirmed it.

CISA KEV not listed
VulnCheck KEV listed Exploitation reported in the wild. 1 citation · earliest 2025-06-23.
CISA Vulnrichment exploitation: none
Indexed PoC 2 indexed Published artifacts you can open, in GitHub PoC, Nuclei; first seen 2020-03-02.
EPSS 19% chance in 30 days A model's forecast, not a report of exploitation. Higher than 97% of all scored CVEs.

VulnCheck KEV

Exploitation evidence from VulnCheck Known Exploited Vulnerabilities (VulnCheck KEV), used under VulnCheck's community terms. View CVE-2020-9548 in VulnCheck (free account).

Evidence	Source	Detail	Date
Reported exploitation	cloudsek.com	/blog/androxgh0st-continues-exploitation-operators-compromise-a-us-university-for-hosting-c2-logger	2025-06-23

Evidence

Source

Detail

Date

Reported exploitation

cloudsek.com

/blog/androxgh0st-continues-exploitation-operators-compromise-a-us-university-for-hosting-c2-logger

2025-06-23

Index	Artifact	Stars	First seen
GitHub PoC	CVE-2020-9548：FasterXML/jackson-databind 远程代码执行漏洞	24	2020-03-02
Nuclei	FasterXML Jackson Databind <=2.9.10.4 - Remote Code Execution

Index

Artifact

Stars

First seen

GitHub PoC

CVE-2020-9548：FasterXML/jackson-databind 远程代码执行漏洞

2020-03-02

Nuclei

FasterXML Jackson Databind <=2.9.10.4 - Remote Code Execution

Waratek protection

Mitigation candidate

A kind of vulnerability Waratek's rules address, with exploit code published or exploitation reported. No rule exists and none is planned yet. The decision below says what we found to build a rule from.

Protection none
Action unverified
Review automated Inferred
Record active

Decided by	The affected package being open source on Maven, so the fix can be read
Finding	This CVE affects an open-source Java library published on Maven Central (Maven packages: com.fasterxml.jackson.core:jackson-databind), so it is squarely in ARMR's territory and the source needed to understand the defect is public. That makes it a candidate for an ARMR patch rule. No rule exists and none is scheduled: the diff between the affected and fixed versions has not been read, and a closer look may find no hook point ARMR can act on.

Decided by

The affected package being open source on Maven, so the fix can be read

Finding

This CVE affects an open-source Java library published on Maven Central (Maven packages: com.fasterxml.jackson.core:jackson-databind), so it is squarely in ARMR's territory and the source needed to understand the defect is public. That makes it a candidate for an ARMR patch rule. No rule exists and none is scheduled: the diff between the affected and fixed versions has not been read, and a closer look may find no hook point ARMR can act on.

CVSS

9.8 CRITICAL v3.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H 3 metrics

We show the highest score from the newest CVSS version. Scores from different versions can't be compared, and the first score listed is sometimes a 0.0 placeholder.

Version Score Band Vector Assigner Type

CVSS 3.1 9.8 CRITICAL CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H NVD Primary published

CVSS 3.1 9.8 CRITICAL CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CISA-ADP Secondary

CVSS 2.0 6.8 none AV:N/AC:M/Au:N/C:P/I:P/A:P NVD Primary

Version	Score	Band	Vector	Assigner	Type
CVSS 3.1	9.8	CRITICAL	`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`	NVD	Primary	published
CVSS 3.1	9.8	CRITICAL	`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`	CISA-ADP	Secondary
CVSS 2.0	6.8	none	`AV:N/AC:M/Au:N/C:P/I:P/A:P`	NVD	Primary

Affected software and releases

Maven packages

Affected and fixed versions, from OSV.dev

Package Introduced Fixed Last affected

com.fasterxml.jackson.core:jackson-databind 2.9.0 2.9.10.4 unbounded

com.fasterxml.jackson.core:jackson-databind 2.8.0 2.8.11.6 unbounded

com.fasterxml.jackson.core:jackson-databind 2.0.0 2.7.9.7 unbounded

Package	Introduced	Fixed	Last affected
`com.fasterxml.jackson.core:jackson-databind`	2.9.0	`2.9.10.4`	unbounded
`com.fasterxml.jackson.core:jackson-databind`	2.8.0	`2.8.11.6`	unbounded
`com.fasterxml.jackson.core:jackson-databind`	2.0.0	`2.7.9.7`	unbounded

Products and versions

26 products, 48 version entries

Source	Vendor	Product	Scheme	Affected versions
osv	com.fasterxml.jackson.core	jackson-databind	generic	≥ 2.0.0 and ＜ 2.7.9.7 · ≥ 2.8.0 and ＜ 2.8.11.6 · ≥ 2.9.0 and ＜ 2.9.10.4
nvd	debian	debian linux	generic	8.0
nvd	fasterxml	jackson-databind	generic	≥ 2.0.0 and ＜ 2.7.9.7 · ≥ 2.8.0 and ＜ 2.8.11.6 · ≥ 2.9.0 and ＜ 2.9.10.4
nvd	netapp	active iq unified manager	generic	≥ 7.3 · ≥ 9.5
nvd	oracle	agile product lifecycle management	generic	9.3.6
nvd	oracle	autovue for agile product lifecycle management	generic	21.0.2
nvd	oracle	banking digital experience	generic	18.1 · 18.2 · 18.3 · 19.1 · 19.2 · 20.1
nvd	oracle	banking platform	generic	≥ 2.4.0 and ≤ 2.9.0
nvd	oracle	communications calendar server	generic	8.0.0.4.0
nvd	oracle	communications contacts server	generic	8.0.0.4.0 · 8.0.0.5.0
nvd	oracle	communications diameter signaling router	generic	≥ 8.0.0 and ≤ 8.2.2
nvd	oracle	communications element manager	generic	≥ 8.2.0 and ≤ 8.2.2
nvd	oracle	communications evolved communications application server	generic	7.1
nvd	oracle	communications instant messaging server	generic	10.0.1.4.0
nvd	oracle	communications network charging and control	generic	6.0.1 · ≥ 12.0.0 and ≤ 12.0.3
nvd	oracle	communications session report manager	generic	≥ 8.2.0 and ≤ 8.2.2
nvd	oracle	communications session route manager	generic	≥ 8.2.0 and ≤ 8.2.2
nvd	oracle	enterprise manager base platform	generic	13.3.0.0 · 13.4.0.0
nvd	oracle	global lifecycle management opatch	generic	＜ 12.2.0.1.20
nvd	oracle	jd edwards enterpriseone orchestrator	generic	＜ 9.2.4.2
nvd	oracle	jd edwards enterpriseone tools	generic	＜ 9.2.4.2
nvd	oracle	primavera unifier	generic	16.1 · 16.2 · ≥ 17.7 and ≤ 17.12 · 18.8 · 19.12
nvd	oracle	retail merchandising system	generic	15.0
nvd	oracle	retail sales audit	generic	14.1
nvd	oracle	retail xstore point of service	generic	15.0 · 16.0 · 17.0 · 18.0 · 19.0
nvd	oracle	weblogic server	generic	12.2.1.3.0 · 12.2.1.4.0

Source

Vendor

Product

Scheme

Affected versions

osv

com.fasterxml.jackson.core

jackson-databind

generic

≥ 2.0.0 and ＜ 2.7.9.7 · ≥ 2.8.0 and ＜ 2.8.11.6 · ≥ 2.9.0 and ＜ 2.9.10.4

nvd

debian

debian linux

generic

8.0

nvd

fasterxml

jackson-databind

generic

≥ 2.0.0 and ＜ 2.7.9.7 · ≥ 2.8.0 and ＜ 2.8.11.6 · ≥ 2.9.0 and ＜ 2.9.10.4

nvd

netapp

active iq unified manager

generic

≥ 7.3 · ≥ 9.5

nvd

oracle

agile product lifecycle management

generic

9.3.6

nvd

oracle

autovue for agile product lifecycle management

generic

21.0.2

nvd

oracle

banking digital experience

generic

18.1 · 18.2 · 18.3 · 19.1 · 19.2 · 20.1

nvd

oracle

banking platform

generic

≥ 2.4.0 and ≤ 2.9.0

nvd

oracle

communications calendar server

generic

8.0.0.4.0

nvd

oracle

communications contacts server

generic

8.0.0.4.0 · 8.0.0.5.0

nvd

oracle

communications diameter signaling router

generic

≥ 8.0.0 and ≤ 8.2.2

nvd

oracle

communications element manager

generic

≥ 8.2.0 and ≤ 8.2.2

nvd

oracle

communications evolved communications application server

generic

7.1

nvd

oracle

communications instant messaging server

generic

10.0.1.4.0

nvd

oracle

communications network charging and control

generic

6.0.1 · ≥ 12.0.0 and ≤ 12.0.3

nvd

oracle

communications session report manager

generic

≥ 8.2.0 and ≤ 8.2.2

nvd

oracle

communications session route manager

generic

≥ 8.2.0 and ≤ 8.2.2

nvd

oracle

enterprise manager base platform

generic

13.3.0.0 · 13.4.0.0

nvd

oracle

global lifecycle management opatch

generic

＜ 12.2.0.1.20

nvd

oracle

jd edwards enterpriseone orchestrator

generic

＜ 9.2.4.2

nvd

oracle

jd edwards enterpriseone tools

generic

＜ 9.2.4.2

nvd

oracle

primavera unifier

generic

16.1 · 16.2 · ≥ 17.7 and ≤ 17.12 · 18.8 · 19.12

nvd

oracle

retail merchandising system

generic

15.0

nvd

oracle

retail sales audit

generic

14.1

nvd

oracle

retail xstore point of service

generic

15.0 · 16.0 · 17.0 · 18.0 · 19.0

nvd

oracle

weblogic server

generic

12.2.1.3.0 · 12.2.1.4.0

References

URL	Tags
https://github.com/FasterXML/jackson-databind/issues/2634	WEB
https://github.com/FasterXML/jackson-databind/commit/1e64db6a2fad331f96c7363fda3bc5f3dffa25bb	WEB
https://github.com/FasterXML/jackson-databind/commit/9f4e97019fb0dd836533d0b6198c88787e235ae2	WEB
https://www.oracle.com/security-alerts/cpuoct2021.html	WEB
https://www.oracle.com/security-alerts/cpuoct2020.html	WEB
https://www.oracle.com/security-alerts/cpujul2020.html	WEB
https://www.oracle.com/security-alerts/cpujan2021.html	WEB
https://security.netapp.com/advisory/ntap-20200904-0006	WEB
https://medium.com/@cowtowncoder/on-jackson-cves-dont-panic-here-is-what-you-need-to-know-54cd0d6e8062	WEB
https://lists.debian.org/debian-lts-announce/2020/03/msg00008.html	WEB

URL

Timeline

Published	2020-03-02	By the CVE Program.
VulnCheck KEV: earliest evidence	2025-06-23	Date of the oldest evidence of exploitation in VulnCheck KEV's record. VulnCheck does not publish the date it listed the CVE.
NVD record modified	2026-10-08	NVD's own last-modified date for this record.

Published

2020-03-02

By the CVE Program.

VulnCheck KEV: earliest evidence

2025-06-23

Date of the oldest evidence of exploitation in VulnCheck KEV's record. VulnCheck does not publish the date it listed the CVE.

NVD record modified

2026-10-08

NVD's own last-modified date for this record.

How VRT decided (17 of 24 rules ran)

17 of 24 rules ran. The rest didn't run because an earlier rule had already settled the CVE.

# Rule Outcome Status Detail

identity: Does this identifier describe a vulnerability at all? the first rule that matches decides

1 rejected no match CVE Program withdrawal of this identifier

scope: Is it a vulnerability Waratek protects? the first rule that matches decides

2 armr-patch-file no match An ARMR patch file on disk for this CVE

3 armr-secure-rule-file no match An ARMR security-rule template on disk for this CVE

4 manual-classification no match A researcher's recorded decision for this specific CVE

5 manual classification no match Manual classification of this CVE in the legacy dataset

6 non-java-upstream no match A root cause in non-Java code: an OS kernel, a C library, or a bundled runtime

7 oracle-component no match The defect being in a component of a tracked product the agent does not reach: JavaFX, the Java SE installer, the JInitiator browser plug-in, the native WebLogic proxy plug-in, or a native part of Oracle Application Server or Collaboration Suite (HTTP Server, Web Cache, Internet Directory, mail and calendar servers). Oracle gives these no CPE of their own and names them only in the description.

8 java-client-side no match Oracle's own risk-matrix note saying the CVE is reached only through untrusted code in the Java sandbox (applets, Web Start) or only through a client installation of Java, so a server running its own trusted code is not exposed

9 osv-maven matched In scope Maven packages: com.fasterxml.jackson.core:jackson-databind

10 cna-maven-package not reached An affected Maven artifact named by the CNA itself

11 known-cpe-product not reached An NVD CPE naming a product ARMR tracks

12 cna-cpe-product not reached A CPE the CNA published naming a tracked product. Oracle publishes these on advisory day, months before NVD.

13 oracle-advisory-family not reached A tracked product family named in Oracle's own risk matrix. CPE cannot carry a suite name, only a module.

14 cna-named-product not reached A tracked product named in words by the CVE's own CNA, on a record with no CPE yet. Apache and Eclipse publish these on advisory day, before NVD adds CPE data.

15 non-deployable-product not reached The only affected product being a sealed appliance image, where Java runs but no -javaagent can be attached

16 unmatched-product not reached No tracked product matched above, and none present at all

disposition: What do we do about one that is? every rule runs

17 patch-hint no match A reference pointing at the upstream fix: a commit, a PR, a Red Hat bug

18 open-source-maven decided it matched Mitigation candidate Open-source Maven artifact indexed by OSV (Maven packages: com.fasterxml.jackson.core:jackson-databind). The source is public, which makes an ARMR patch rule a candidate; nothing here establishes that one can be written.

19 poc-derivable skipped An indexed exploit clearing the evidence bar to reverse-engineer, where there is no source to read

20 no-exploit skipped Nothing to build a rule from yet: no published exploit, no CISA record of exploitation and no source-level change to read

21 secure-rule-match withheld CWE-502 names deserialization, but the description identifies an unsupported deserialization library; not promoted by the CWE alone.

22 exploited-no-fix-or-poc skipped Somebody exploiting this CVE (a CISA or VulnCheck KEV listing, or a CISA verdict of active exploitation), with no fix, source code or PoC to build a rule from

23 below-action-threshold no match Severity is CRITICAL — only MEDIUM/LOW are deprioritized

24 no-exploit-published no match A CISA or VulnCheck KEV listing, a CISA verdict of active exploitation, a reviewed exploit catalogue, or a GitHub PoC with 5 or more stars carries this CVE — exploit code is in use or published, so it stays a candidate

Products the scope rules checked

The products this CVE's record names, and whether VRT tracks each one. The scope rules decided on these.

Vendor Product Tracked CPE Source

fasterxml jackson-databind tracked cpe:2.3:a:fasterxml:jackson-databind:*:*:*:*:*:*:*:* yaml

netapp active_iq_unified_manager not tracked cpe:2.3:a:netapp:active_iq_unified_manager:*:*:*:*:*:linux:*:*

debian debian_linux not tracked cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*

oracle agile_product_lifecycle_management tracked cpe:2.3:a:oracle:agile_product_lifecycle_management:9.3.6:*:*:*:*:*:*:* yaml

oracle autovue_for_agile_product_lifecycle_management not tracked cpe:2.3:a:oracle:autovue_for_agile_product_lifecycle_management:21.0.2:*:*:*:*:*:*:*

oracle banking_digital_experience tracked cpe:2.3:a:oracle:banking_digital_experience:18.1:*:*:*:*:*:*:* yaml

oracle banking_platform tracked cpe:2.3:a:oracle:banking_platform:*:*:*:*:*:*:*:* yaml

oracle communications_calendar_server tracked cpe:2.3:a:oracle:communications_calendar_server:8.0.0.4.0:*:*:*:*:*:*:* yaml

oracle communications_contacts_server tracked cpe:2.3:a:oracle:communications_contacts_server:8.0.0.4.0:*:*:*:*:*:*:* yaml

oracle communications_diameter_signaling_router tracked cpe:2.3:a:oracle:communications_diameter_signaling_router:*:*:*:*:*:*:*:* yaml

oracle communications_element_manager tracked cpe:2.3:a:oracle:communications_element_manager:*:*:*:*:*:*:*:* yaml

oracle communications_evolved_communications_application_server tracked cpe:2.3:a:oracle:communications_evolved_communications_application_server:7.1:*:*:*:*:*:*:* yaml

oracle communications_instant_messaging_server tracked cpe:2.3:a:oracle:communications_instant_messaging_server:10.0.1.4.0:*:*:*:*:*:*:* yaml

oracle communications_network_charging_and_control tracked cpe:2.3:a:oracle:communications_network_charging_and_control:*:*:*:*:*:*:*:* yaml

oracle communications_session_report_manager tracked cpe:2.3:a:oracle:communications_session_report_manager:*:*:*:*:*:*:*:* yaml

oracle communications_session_route_manager tracked cpe:2.3:a:oracle:communications_session_route_manager:*:*:*:*:*:*:*:* yaml

oracle enterprise_manager_base_platform tracked cpe:2.3:a:oracle:enterprise_manager_base_platform:13.3.0.0:*:*:*:*:*:*:* yaml

oracle global_lifecycle_management_opatch tracked cpe:2.3:a:oracle:global_lifecycle_management_opatch:*:*:*:*:*:*:*:* yaml

oracle jd_edwards_enterpriseone_orchestrator tracked cpe:2.3:a:oracle:jd_edwards_enterpriseone_orchestrator:*:*:*:*:*:*:*:* yaml

oracle jd_edwards_enterpriseone_tools tracked cpe:2.3:a:oracle:jd_edwards_enterpriseone_tools:*:*:*:*:*:*:*:* yaml

oracle primavera_unifier tracked cpe:2.3:a:oracle:primavera_unifier:*:*:*:*:*:*:*:* yaml

oracle retail_merchandising_system tracked cpe:2.3:a:oracle:retail_merchandising_system:15.0:*:*:*:*:*:*:* yaml

oracle retail_sales_audit tracked cpe:2.3:a:oracle:retail_sales_audit:14.1:*:*:*:*:*:*:* yaml

oracle retail_xstore_point_of_service tracked cpe:2.3:a:oracle:retail_xstore_point_of_service:15.0:*:*:*:*:*:*:* yaml

oracle weblogic_server tracked cpe:2.3:a:oracle:weblogic_server:12.2.1.3.0:*:*:*:*:*:*:* yaml

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