VRT 391,192 CVEs tracked · 15,442 in RASP scope · data as of 19 hours ago

`CVE-2016-1000027`

9.8 Critical Protected by RASP

Description

Pivotal Spring Framework through 5.3.16 suffers from a potential remote code execution (RCE) issue if used for Java deserialization of untrusted data. Depending on how the library is implemented within a product, this issue may or not occur, and authentication may be required. NOTE: the vendor's position is that untrusted data is not an intended use case. The product's behavior will not be changed because some users rely on deserialization of trusted data.

CWE-502 · Deserialization of untrusted data

Exploitation Status

Proof of concept only

A proof of concept exists, but no reviewed exploit catalogue carries this CVE. Demonstrating a defect and weaponising it are different amounts of work.

CVSS E:P

CISA KEV not listed
CISA Vulnrichment no assessment published
Indexed PoC 4 indexed Published artifacts you can open, in GitHub PoC; first seen 2021-02-01.
EPSS 32% chance in 30 days A model prediction, not an observation. Higher than 98% of all scored CVEs.

3 of these are GitHub repositories below the 5★ evidence bar. They are listed because a person may still want to open one; they do not count toward the exploit maturity above.

Index	Artifact	Stars	First seen
GitHub PoC	PoC for CVE-2016-1000027	12	2021-02-01
GitHub PoC	Mitigated version for CVE-2016-1000027 spring web.	2	2023-11-20
GitHub PoC	validation de l'exploitabilité d'une CVE		2026-02-13
GitHub PoC	Spring Web 5.x with `org.springframework.remoting` package removed, to fix CVE-2016-1000027.		2024-02-08

Waratek Defense Posture

Protected by RASP

A Waratek agent blocks this today.

Applicable rule: A researcher classified this CVE as MITIGATED-BY-SECURE-RULE, protected by the ARMR Marchal RCE rule.

Protection full a general security rule for the vulnerability class
Action available security rule
Review human manual-review
Record active

Decided by manual-classification : A researcher's recorded decision for this specific CVE

Finding A researcher classified this CVE as MITIGATED-BY-SECURE-RULE, protected by the ARMR Marchal RCE rule.

Decided by	`manual-classification` : A researcher's recorded decision for this specific CVE
Finding	A researcher classified this CVE as MITIGATED-BY-SECURE-RULE, protected by the ARMR Marchal RCE rule.

Waratek research note

written 2026-09-14

Written by a Waratek engineer reviewing this CVE. A written classification sets the status directly, ahead of every automated scope rule except a withdrawal.

Comments

Rule Name: Marchal RCE rule

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 2 metrics

VRT selects the newest version's highest entry and publishes it as cvssScore, newest rather than largest because scores are not comparable across versions, and highest rather than first because the first entry is frequently a CNA placeholder scoring 0.0 over NVD's own analysis.

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 2.0 7.5 no band published AV:N/AC:L/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 2.0	7.5	no band published	`AV:N/AC:L/Au:N/C:P/I:P/A:P`	NVD	Primary

Affected Software & Releases

🏛️ Oracle CPU Advisories & Products

Advisory	Type	Quarter	Products Oracle named in risk matrix
Oracle Critical Patch Update January 2025 ↗	CPU	2025-Q1	Oracle Analytics / Development Operations (Spring Framework) (7.0.0.0.0, 7.6.0.0.0)

Advisory

Type

Quarter

Products Oracle named in risk matrix

Oracle Critical Patch Update January 2025 ↗

CPU

2025-Q1

Oracle Analytics / Development Operations (Spring Framework) (7.0.0.0.0, 7.6.0.0.0)

Indexed Oracle Components & Versions

Family	Component	Oracle's version cell (verbatim)	Indexed as
Oracle Analytics	Development Operations (Spring Framework)	7.0.0.0.0, 7.6.0.0.0	7.0.0.0.0 · 7.6.0.0.0

Family

Component

Oracle's version cell (verbatim)

Indexed as

Oracle Analytics

Development Operations (Spring Framework)

7.0.0.0.0, 7.6.0.0.0

7.0.0.0.0 · 7.6.0.0.0

☕ Maven Library Packages

Artifact coordinates and fix boundaries from OSV.dev

Package Coordinate Introduced Fixed Last affected

org.springframework:spring-web 0 6.0.0 unbounded

Package Coordinate	Introduced	Fixed	Last affected
`org.springframework:spring-web`	0	`6.0.0`	unbounded

🖥️ Product CPEs & Version Ranges

2 product(s) over 2 version claims (uncapped)

Source	Vendor	Product	Scheme	Affected Versions
osv	org.springframework	spring-web	generic	＜ 6.0.0
nvd	vmware	spring framework	generic	＜ 6.0.0

Source

Vendor

Product

Scheme

Affected Versions

osv

org.springframework

spring-web

generic

＜ 6.0.0

nvd

vmware

spring framework

generic

＜ 6.0.0

References

URL	Tags
https://github.com/spring-projects/spring-framework/issues/21680	WEB
https://github.com/spring-projects/spring-framework/issues/24434	WEB
https://github.com/spring-projects/spring-framework/issues/24434#issuecomment-1231625331	WEB
https://github.com/spring-projects/spring-framework/issues/24434#issuecomment-579669626	WEB
https://github.com/spring-projects/spring-framework/issues/24434#issuecomment-582313417	WEB
https://github.com/spring-projects/spring-framework/issues/24434#issuecomment-744519525	WEB
https://github.com/spring-projects/spring-framework/commit/2b051b8b321768a4cfef83077db65c6328ffd60f	WEB
https://github.com/spring-projects/spring-framework/commit/5cbe90b2cd91b866a5a9586e460f311860e11cfa	WEB
https://www.tenable.com/security/research/tra-2016-20	WEB
https://support.contrastsecurity.com/hc/en-us/articles/4402400830612-Spring-web-Java-Deserialization-CVE-2016-1000027	WEB

URL

Timeline

Published 2020-01-02 Last modified 2026-06-17

Published	2020-01-02	By the CVE Program.
NVD record modified	2026-06-17	NVD's own last-modified date for this record.
Classification created	2026-09-14	First commit adding this CVE's research note.
Last VRT activity	2026-09-14	Most recent commit touching this CVE's classification, patch or rule file.

Published

2020-01-02

By the CVE Program.

NVD record modified

2026-06-17

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

Classification created

2026-09-14

First commit adding this CVE's research note.

Last VRT activity

2026-09-14

Most recent commit touching this CVE's classification, patch or rule file.

Pipeline policy audit (4 of 21 rules evaluated)

4 of 21 rules ran. The rest were never reached, because an earlier stage settled the CVE, a distinct claim from a rule that ran and found nothing.

# Rule Outcome Status Detail

identity: Does this identifier describe a vulnerability at all? first match wins

1 rejected no-match CVE Program withdrawal of this identifier

scope: Is the vulnerability ARMR's to address? first match wins

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 decided it matched Protected by RASP A researcher classified this CVE as MITIGATED-BY-SECURE-RULE, protected by the ARMR Marchal RCE rule.

5 manual classification not-reached Manual classification of this CVE in the legacy dataset

6 non-java-upstream not-reached A root cause in non-Java code: an OS kernel, a C library, or a bundled runtime

7 oracle-component not-reached The defect being in a component of a tracked product the agent does not reach: JavaFX, the Java SE installer, the native WebLogic proxy plug-in. Oracle gives these no CPE of their own and names them only in the description.

8 osv-maven not-reached An OSV.dev record of this CVE affecting a package published to Maven Central

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

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

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

12 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.

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

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

disposition: What do we do about one that is? cumulative: every rule gets a turn

15 patch-hint not-reached A reference pointing at the upstream fix: a commit, a PR, a Red Hat bug

16 open-source-maven not-reached The affected package being open source on Maven, so the fix can be read

17 poc-derivable not-reached An indexed exploit to reverse-engineer, where there is no source to read

18 no-exploit not-reached With no fix path, a public exploit, or a CISA record of one

19 secure-rule-match not-reached A vulnerability class already blocked by an ARMR security rule

20 below-action-threshold not-reached Medium or Low severity, no KEV listing, no PoC clearing the evidence bar, no CISA verdict, no Oracle advisory

21 no-exploit-published not-reached A published working exploit for this candidate, not only a proof of concept, a forecast, or nothing at all

Raw stored JSON document for this CVE ↗ · NVD ↗ · CVE.org ↗