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CVE-2016-3093

25
FAUCET Score

CVE-2016-3093 is a denial-of-service vulnerability affecting Apache Struts versions 2.0.0 through 2.3.24.1 and OGNL before 3.0.12. It stems from improper caching of method references when OGNL is used, allowing remote attackers to block access to a website. Rated as Medium severity (CVSS 5.3), this vulnerability has a low attack complexity and requires no user interaction, but only impacts availability. There is no evidence of active exploitation, public exploit code, or significant community discussion, and it is not listed on the CISA KEV catalog.

Impacted Technologies

VendorProductVersion(s)CPE
<= 3.0.11CPE matchmatch criteria
cpe:2.3:a:ognl_project:ognl:*:*:*:*:*:*:*:*
2.0.0CPE matchmatch criteria
cpe:2.3:a:apache:struts:2.0.0:*:*:*:*:*:*:*
2.0.1CPE matchmatch criteria
cpe:2.3:a:apache:struts:2.0.1:*:*:*:*:*:*:*
2.0.2CPE matchmatch criteria
cpe:2.3:a:apache:struts:2.0.2:*:*:*:*:*:*:*
2.0.3CPE matchmatch criteria
cpe:2.3:a:apache:struts:2.0.3:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

5.3MEDIUM

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
LOW
Exploitability Score
3.9
Impact Score
1.4
CvssVersion
3.0

Exploit Intelligence

EPSS Score
8.38%
Probability of exploitation in next 30 days
EPSS Percentile
94.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0838 is in the 93rd percentile among its peer group of 23,701 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

mavenpatch availablevia ghsa
Product: org.apache.struts:struts2-coreFixed in: 2.3.24.3
mavenpatch availablevia ghsa
Product: ognl:ognlFixed in: 3.0.12

Vendor Advisories (2)

mavenGHSA-383p-xqxx-rrmpmedium

Denial of service in Apache Struts

May 17, 2022
redhatCVE-2016-3093Moderate

struts: OGNL cache poisoning can lead to DoS

May 31, 2016

References

lists.apache.org / thread.html/940b4c3fef002461b89a050935337056d4a036a65ef68e0bbd4621ef%40%3Cdev.struts.apache.org%3E
struts.apache.org / docs/s2-034.html
Vendor Advisory
www-01.ibm.com / support/docview.wss
securityfocus.com / bid/90961
securitytracker.com / id/1036018