What’s Vulnerable › Vulnerabilities

CVE-2019-9917

• Severity: medium (CVSS 6.5 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 3.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2019-03-27 · updated 2026-06-17
• Weakness: CWE-20

Description

ZNC before 1.7.3-rc1 allows an existing remote user to cause a Denial of Service (crash) via invalid encoding.

Affected products

• Canonical Ubuntu Linux: 18.10
• Fedoraproject Fedora: 28, 29, 30
• znc: through 1.7.2

References

• http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00037.html
• http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00018.html
• https://github.com/znc/znc/commit/64613bc8b6b4adf1e32231f9844d99cd512b8973
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7WTRBTPL7WWKQ7DZ2ALDTCGYUWSE6SL3/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WRHCMHI44AW5CJ22WV676BKFUWWCLA7T/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZRVSINQHM623GJYYNDSBYSXT2MHKFCYQ/
• https://seclists.org/bugtraq/2019/Jun/23
• https://usn.ubuntu.com/3950-1/
• https://www.debian.org/security/2019/dsa-4463
• http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00037.html
• http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00018.html
• https://github.com/znc/znc/commit/64613bc8b6b4adf1e32231f9844d99cd512b8973

Get alerted when CVE-2019-9917 or the next vulnerability affects your stack