CVE-2016-4438

highpriority · attend · 55EPSS 0.167 · 97 %ileexploit · PoCEURUUS

grimoire priorityP1 · Urgent

Exploitable?

Public exploit

2 exploits · PoC

Likely / severe?

16.7% (97th) EPSS

CVSS 7.5 · high

Is it mine?

11 products

Check your exposure

Who says so?

5 sources

cnnvd · enisa_euvd · fstec_bdu · nvd

EPSS · scored 2026-10-27

The REST plugin in Apache Struts 2 2.3.19 through 2.3.28.1 allows remote attackers to execute arbitrary code via a crafted expression.

cvss

Technical severity, 0–10. One row per scoring source.

9.8

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · high–critical · 7.5–9.8

v2.07.5highAV:N/AC:L/Au:N/C:P/I:P/A:Pprimary · NVD / NIST USexploitability 10 · impact 6.4

v3.09.8criticalCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 3.9 · impact 5.9

v2.07.5highAV:N/AC:L/Au:N/C:P/I:P/A:Psecondary · FSTEC (BDU) RU

v3.09.8criticalCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · OSV

v3.09.3criticalCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:Psecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-20USprimaryCWE-20USCWE-20US

exploits (2)

Public proof-of-concept and weaponised exploit code.

jason3e7/CVE-2016-4438jason3e7/CVE-2016-4438PoC · poc_in_github
tafamace/CVE-2016-4438tafamace/CVE-2016-4438PoC · poc_in_github

affected products (11)

Products and version ranges known to be affected.

n/a n/a≤ n/aenisa_euvdEU
Apache Software Foundation Struts2.3.20 → 2.3.28.1fstec_bduRU
apache struts= 2.3.20nvdUScpe:2.3:a:apache:struts:*:*:*:*:*:*:*:*
apache struts= 2.3.20.1nvdUScpe:2.3:a:apache:struts:*:*:*:*:*:*:*:*
apache struts= 2.3.20.3nvdUScpe:2.3:a:apache:struts:*:*:*:*:*:*:*:*
apache struts= 2.3.24nvdUScpe:2.3:a:apache:struts:*:*:*:*:*:*:*:*
apache struts= 2.3.24.1nvdUScpe:2.3:a:apache:struts:*:*:*:*:*:*:*:*
apache struts= 2.3.24.3nvdUScpe:2.3:a:apache:struts:*:*:*:*:*:*:*:*
apache struts= 2.3.28nvdUScpe:2.3:a:apache:struts:*:*:*:*:*:*:*:*
Maven org.apache.struts:struts2-core2.3.19 → 2.3.29osvUSpkg:maven/org.apache.struts/struts2-core
Maven org.apache.struts:struts2-rest-plugin2.3.19 → 2.3.29osvUSpkg:maven/org.apache.struts/struts2-rest-plugin

advisories (1)

Vendor and ecosystem advisories describing this.

GHSA-4prj-vw9j-v6prArbitrary code execution in Apache Struts 22022-05-14ghsa · osvUS
The REST plugin in Apache Struts 2 2.3.19 through 2.3.28.1 allows remote attackers to execute arbitrary code via a crafted expression.

also known as (6)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu nvd osv NVD CVE.org MITRE

published 2016-07-04modified 2026-06-17

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references (18)

External citations — patches, advisories, analysis.

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