Is CVE-2016-2167 in the CISA KEV catalog?

No. CVE-2016-2167 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2016-2167?

CVE-2016-2167 has a CVSS v3 base score of 6.8 (MEDIUM).

What is the EPSS score for CVE-2016-2167?

CVE-2016-2167 has an EPSS score of 6.81% (93th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2016-2167?

Upgrade subversion on debian 11 to 1.9.4-1 or later. Fixes are available for 5 affected products.

CVE & CISA-KEV Catalog

CVE-2016-2167

MEDIUMEPSS 93th pctl

6.8

CVSS v3

NVD

Description

The canonicalize_username function in svnserve/cyrus_auth.c in Apache Subversion before 1.8.16 and 1.9.x before 1.9.4, when Cyrus SASL authentication is used, allows remote attackers to authenticate and bypass intended access restrictions via a realm string that is a prefix of an expected repository realm string.

CWE-284Improper Access Control

How to fix

Remediation Available

subversionDebian

Fixed in:1.9.4-1CVE-2016-2167

libapache2-mod-svnUbuntu

Fixed in:1.8.8-1ubuntu3.3USN-3388-1

Fixed in:1.9.3-2ubuntu1.1USN-3388-1

libapache2-svnUbuntu

Fixed in:1.8.8-1ubuntu3.3USN-3388-1

Fixed in:1.9.3-2ubuntu1.1USN-3388-1

libsvn1Ubuntu

Fixed in:1.8.8-1ubuntu3.3USN-3388-1

Fixed in:1.9.3-2ubuntu1.1USN-3388-1

subversionUbuntu

Fixed in:1.8.8-1ubuntu3.3USN-3388-1

Fixed in:1.9.3-2ubuntu1.1USN-3388-1

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityHigh

Privileges RequiredLow

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityNone

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

Exploit Intelligence

6.81%probability of exploitation in 30 days

93rdpercentile

High risk: more likely to be exploited than 93% of all known CVEs.

References

Vendor Advisory1

subversion.apache.org

Other references11

Related Vulnerabilities

Other CWE-284 (Improper Access Control) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2023-27350	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2019-1653	High	7.5	100%	KEV	-
CVE-2023-23752	Medium	5.3	100%	KEV	Fix
CVE-2023-29298	High	7.5	100%	KEV	-
CVE-2023-38205	High	7.5	100%	KEV	-
CVE-2024-27348	Critical	9.8	99%	KEV	Fix

Embed a live status badge for CVE-2016-2167

Markdown

[![CVE-2016-2167](https://tridentstack.com/cve/badge/CVE-2016-2167.svg)](https://tridentstack.com/cve/CVE-2016-2167)

HTML

<a href="https://tridentstack.com/cve/CVE-2016-2167"><img src="https://tridentstack.com/cve/badge/CVE-2016-2167.svg" alt="CVE-2016-2167"></a>

Find and fix vulnerabilities across your fleet

TridentStack Control continuously scans your Windows, macOS, and Linux fleet for known vulnerabilities, prioritizes them by severity and active exploitation, and patches them automatically.

Start free

This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-05-06.