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CVE-2016-2167

27
FAUCET Score

CVE-2016-2167 affects Apache Subversion versions prior to 1.8.16 and 1.9.4 when configured with Cyrus SASL authentication. This vulnerability allows remote attackers to bypass access restrictions by manipulating the realm string during authentication. With a CVSS score of 6.8 (Medium), it has a network attack vector and high impact on confidentiality and integrity, but requires low privileges and high attack complexity. There is no evidence of active exploitation, public exploit code, or significant community discussion, indicating a low current exploitation risk.

Impacted Technologies

VendorProductVersion(s)CPE
<= 1.8.15CPE matchmatch criteria
cpe:2.3:a:apache:subversion:*:*:*:*:*:*:*:*
1.9.0CPE matchmatch criteria
cpe:2.3:a:apache:subversion:1.9.0:*:*:*:*:*:*:*
1.9.1CPE matchmatch criteria
cpe:2.3:a:apache:subversion:1.9.1:*:*:*:*:*:*:*
1.9.2CPE matchmatch criteria
cpe:2.3:a:apache:subversion:1.9.2:*:*:*:*:*:*:*
1.9.3CPE matchmatch criteria
cpe:2.3:a:apache:subversion:1.9.3:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

6.8MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
NONE
Exploitability Score
1.6
Impact Score
5.2
CvssVersion
3.0

Exploit Intelligence

EPSS Score
6.81%
Probability of exploitation in next 30 days
EPSS Percentile
93.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0681 is in the 97th percentile among its peer group of 1,425 CVEs.

Social Chatter

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

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (3)

redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: subversion
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: subversion
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: subversion

Vendor Advisories (1)

redhatCVE-2016-2167Low

subversion: svnserve/sasl may authenticate users using the wrong realm

Apr 28, 2016

References

lists.fedoraproject.org / pipermail/package-announce/2016-May/184545.html
lists.opensuse.org / opensuse-updates/2016-05/msg00043.html
lists.opensuse.org / opensuse-updates/2016-05/msg00044.html
mail-archives.apache.org / mod_mbox/subversion-announce/201604.mbox/%3CCAP_GPNgfn1iKueW51EpmXzXi_URNfGNofZSgOyW1_jnSeNm5DQ%40mail.gmail.com%3E
mail-archives.apache.org / mod_mbox/subversion-announce/201604.mbox/%3CCAP_GPNgJet+7_MAhomFVOXPgLtewcUw9w=k9zdPCkq5tvPxVMA%40mail.gmail.com%3E
security.gentoo.org / glsa/201610-05
subversion.apache.org / security/CVE-2016-2167-advisory.txt
Vendor Advisory
oracle.com / security-alerts/cpuoct2020.html
debian.org / security/2016/dsa-3561
securityfocus.com / bid/89417
securitytracker.com / id/1035706
slackware.com / security/viewer.php