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Fencer Vulns
medium 6.5

CVE-2020-25269 json

An issue was discovered in InspIRCd 2 before 2.0.29 and 3 before 3.6.0.

published 2020-09-11 6 y ago modified 2026-06-17 4 mo ago also EUVD-2020-17957

cvss
6.5
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
2.7%
EPSS 2.7% chance of exploitation in 30 days, percentile 85%
public exploits
0
none known

Summary

An issue was discovered in InspIRCd 2 before 2.0.29 and 3 before 3.6.0. The pgsql module contains a use after free vulnerability. When combined with the sqlauth or sqloper modules, this vulnerability can be used for remote crashing of an InspIRCd server by any user able to connect to a server.

Patch / fix

  • inspircd inspircd 2.0.29, 3.6.0
  • inspircd Debian 13, Debian 12 3.8.0-1

debian advisories DEBIAN-CVE-2020-25269

  • inspircd Ubuntu Pro 16.04 LTS 2.0.20-5ubuntu0.1~esm1
  • inspircd Ubuntu Pro 18.04 LTS 2.0.24-1ubuntu1+esm1
  • inspircd Ubuntu Pro 20.04 LTS 3.4.0-2ubuntu1+esm1

ubuntu advisories UBUNTU-CVE-2020-25269

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

Exploit prediction

2.69% chance of exploitation in the next 30 days, higher than 85% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.1 6.5 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
NVD 2.0 6.8 AV:N/AC:L/Au:S/C:N/I:N/A:C

Classification

Weakness

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.