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CVE-2016-4464

33
FAUCET Score

CVE-2016-4464 describes a critical vulnerability in Apache CXF Fediz versions 1.2.x before 1.2.3 and 1.3.x before 1.3.1, where application plugins fail to properly validate SAML AudienceRestriction values against configured audience URIs. This flaw, rated 9.8 Critical (CVSSv3), allows remote attackers to bypass intended restrictions and achieve high impact on confidentiality, integrity, and availability by using a crafted SAML token with a trusted signature. Although there is no evidence of active exploitation, public exploit code, or inclusion in CISA's KEV catalog, the vulnerability has garnered significant community discussion, indicating awareness among security researchers.

Impacted Technologies

VendorProductVersion(s)CPE
1.2.0CPE matchmatch criteria
cpe:2.3:a:apache:cxf_fediz:1.2.0:*:*:*:*:*:*:*
1.2.1CPE matchmatch criteria
cpe:2.3:a:apache:cxf_fediz:1.2.1:*:*:*:*:*:*:*
1.2.2CPE matchmatch criteria
cpe:2.3:a:apache:cxf_fediz:1.2.2:*:*:*:*:*:*:*
1.3.0CPE matchmatch criteria
cpe:2.3:a:apache:cxf_fediz:1.3.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

9.8CRITICAL

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
3.99%
Probability of exploitation in next 30 days
EPSS Percentile
89.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0399 is in the 82nd percentile among its peer group of 36,833 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (4)

mavenpatch availablevia ghsa
Product: org.apache.cxf.fediz:fediz-springFixed in: 1.2.3
mavenpatch availablevia ghsa
Product: org.apache.cxf.fediz:fediz-springFixed in: 1.3.1
mavenpatch availablevia ghsa
Product: org.apache.cxf.fediz:fediz-spring2Fixed in: 1.2.3
mavenpatch availablevia ghsa
Product: org.apache.cxf.fediz:fediz-spring2Fixed in: 1.3.1

Vendor Advisories (1)

mavenGHSA-qpwj-mvv7-v3m9high

High severity vulnerability that affects org.apache.cxf.fediz:fediz-spring and org.apache.cxf.fediz:fediz-spring2

Oct 18, 2018

References

cxf.apache.org / security-advisories.data/CVE-2016-4464.txt.asc
MitigationVendor Advisory
git-wip-us.apache.org / repos/asf
lists.apache.org / thread.html/r36e44ffc1a9b365327df62cdfaabe85b9a5637de102cea07d79b2dbf%40%3Ccommits.cxf.apache.org%3E
lists.apache.org / thread.html/rc774278135816e7afc943dc9fc78eb0764f2c84a2b96470a0187315c%40%3Ccommits.cxf.apache.org%3E
lists.apache.org / thread.html/rd49aabd984ed540c8ff7916d4d79405f3fa311d2fdbcf9ed307839a6%40%3Ccommits.cxf.apache.org%3E
lists.apache.org / thread.html/rec7160382badd3ef4ad017a22f64a266c7188b9ba71394f0d321e2d4%40%3Ccommits.cxf.apache.org%3E
lists.apache.org / thread.html/rfb87e0bf3995e7d560afeed750fac9329ff5f1ad49da365129b7f89e%40%3Ccommits.cxf.apache.org%3E
lists.apache.org / thread.html/rff42cfa5e7d75b7c1af0e37589140a8f1999e578a75738740b244bd4%40%3Ccommits.cxf.apache.org%3E
openwall.com / lists/oss-security/2016/09/08/20
Mailing ListThird Party Advisory
securityfocus.com / bid/92905
securitytracker.com / id/1036869