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CVE-2020-9547 FasterXML jackson-databind

Affected softwareFasterXML jackson-databind
Severity9.8 Critical CVSS 3.1 3 scores
Fixed in2.9.10.4, 2.8.11.6, 2.7.9.7
WeaknessDeserialization of untrusted data (CWE-502)
Published2 Mar 2020
Updated7 Oct 2026

Description

FasterXML jackson-databind 2.x before 2.9.10.4 mishandles the interaction between serialization gadgets and typing, related to com.ibatis.sqlmap.engine.transaction.jta.JtaTransactionConfig (aka ibatis-sqlmap).

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 18% 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-2020-9547 in VulnCheck (free account).

EvidenceSourceDetailDate
Reported exploitation cloudsek.com /blog/androxgh0st-continues-exploitation-operators-compromise-a-us-university-for-hosting-c2-logger 2025-06-23
IndexArtifactStarsFirst seen
GitHub PoC CVE-2020-9547:FasterXML/jackson-databind 远程代码执行漏洞 23 2020-03-02
Nuclei FasterXML jackson-databind - Deserialization 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.

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.

VersionScoreBandVectorAssignerType
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

Oracle advisories

AdvisoryTypeQuarterProducts Oracle names in its risk matrix
Oracle Critical Patch Update July 2026 ↗ CPU 2026-Q3 Oracle Enterprise Manager / Security Framework (jackson-databind) (13.5, 24.1)

Oracle components and versions

FamilyComponentVersions, as Oracle lists themRead as
Oracle Enterprise Manager Security Framework (jackson-databind) 13.5, 24.1 13.5 · 24.1

Maven packages

Affected and fixed versions, from OSV.dev
PackageIntroducedFixedLast 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

17 products, 33 version entries
SourceVendorProductSchemeAffected 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 autovue for agile product lifecycle management generic 21.0.2
nvd oracle banking platform generic ≥ 2.4.0 and ≤ 2.9.0
nvd oracle communications contacts server generic 8.0.0.4.0
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 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 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

URLTags
https://github.com/FasterXML/jackson-databind/issues/2634 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
https://lists.apache.org/thread.html/rf1bbc0ea4a9f014cf94df9a12a6477d24a27f52741dbc87f2fd52ff2@%3Cissues.geode.apache.org%3E WEB

Timeline

Published2020-03-02By the CVE Program.
VulnCheck KEV: earliest evidence2025-06-23Date of the oldest evidence of exploitation in VulnCheck KEV's record. VulnCheck does not publish the date it listed the CVE.
NVD record modified2026-10-07NVD's own last-modified date for this record.