CVE-2016-7142 Auth bypass in n/a

What is CVE-2016-7142?

CVE-2016-7142 is a medium-severity authentication bypass vulnerability in Debian Debian Linux, published on 26 Sep 2016. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

The m_sasl module in InspIRCd before 2.0.23, when used with a service that supports SASL_EXTERNAL authentication, allows remote attackers to spoof certificate fingerprints and consequently log in as another user via a crafted SASL message.

Weakness: CWE-264

Which versions are affected by CVE-2016-7142?

It affects 2 products.

Products include Debian Debian Linux, Inspircd Inspircd.

How do I fix CVE-2016-7142?

Upgrade to a fixed version.

Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.

Is CVE-2016-7142 being exploited?

There is no known exploitation of CVE-2016-7142 in the wild and no public exploit code.

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• CVE-2025-49113 RoundCube Webmail Deserialization of Untrusted Data Exploited Critical 9.9
• CVE-2026-24061 GNU InetUtils Argument Injection Exploited Critical 9.8
• CVE-2025-39682 Linux Kernel Improper Check for Unusual or Exceptional Conditions Exploited Critical 9.8
• CVE-2024-9680 Mozilla Firefox Use-After-Free Exploited Critical 9.8

All Debian Debian Linux vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as DEBIAN-CVE-2016-7142, DSA-3662-1, GHSA-2vvc-952f-f8xg, UBUNTU-CVE-2016-7142.