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Vulnerability Intelligence

CVE-2016-3081

HighExploitedPublic exploit

Apache Struts RCE Vulnerability

Published May 14, 2022 · Updated Oct 11, 2026 · Also known as GHSA-8c6j-ffmf-q6vm

Key Facts

Patch immediately
  • CVE-2016-3081 is a high-severity vulnerability (CVSS 8.1 v3.1) affecting Struts (Apache), Anyoffice (Huawei), Logcenter (Huawei) and 18 more products.
  • It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Jul 23, 2026. Public exploit code is available.
  • EPSS estimates a 96% probability of exploitation in the next 30 days.
  • Fixed versions are available, including Struts 2.3.20.3, Struts 2.3.24.3, Struts 2.3.28.1.
  • Brandefense priority: patch immediately, because it is listed as exploited in the wild.

CVSS v3.1

8.1

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS (30-day exploit likelihood)

96%

Higher than 99.8% of all scored CVEs

Exploited in the wild

Yes

4 catalog listings

Public exploit code

Available

Proof-of-concept or weaponized module

Get the full CVE-2016-3081 brief as a PDF

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Description

Apache Struts 2.3.19 to 2.3.20.2, 2.3.21 to 2.3.24.1, and 2.3.25 to 2.3.28, when Dynamic Method Invocation is enabled, allow remote attackers to execute arbitrary code via method: prefix, related to chained expressions.

Known-Exploited Catalog Listings

CatalogAddedRemediation dueRansomware use
CISA KEVOct 8, 2026Oct 11, 2026Not reported
Industry KEV feedJul 23, 2026Oct 11, 2026Not reported
CIRCL KEVJul 23, 2026Oct 11, 2026Not reported
ENISA EUVDOct 8, 2026n/aNot reported

Required action: Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.

Affected Products

121 affected entries in total
ProductAffected versionsFixed in
StrutsApache2.0.0, 2.0.1, 2.0.10, 2.0.11, 2.0.11.1, 2.0.11.2, 2.0.12, 2.0.132.3.20.3
AnyofficeHuaweiv200r005c00, v200r006c00n/a
LogcenterHuaweiv100r001c10, v100r001c20n/a
Flexcube Private BankingOracle12.0.1, 12.0.3, 12.1.0, 2.0.0.0, 2.0.1, 2.2.0n/a
Micros Retail Xbri Loss PreventionOracle10.0.1, 10.5.0, 10.6.0, 10.7.0, 10.8.0, 10.8.1n/a
16 more affected products in the full CVE brief

Patched Releases

Struts

2.3.20.3, 2.3.24.3, 2.3.28.1

org.apache.struts:struts2-core

2.3.20.3, 2.3.24.3, 2.3.28.1

Timeline

  1. Publicly disclosed

    May 14, 2022

  2. Added to Industry KEV feed

    Jul 23, 2026

  3. Added to CIRCL KEV

    Jul 23, 2026

  4. Added to CISA KEV

    Oct 8, 2026

  5. Added to ENISA EUVD

    Oct 8, 2026

  6. Last updated

    Oct 11, 2026

Weakness Type

  • CWE-77 Improper Neutralization of Special Elements used in a Command ('Command Injection')

References

15 more references in the full CVE brief

FAQ

Common Questions.

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