What’s Vulnerable › Vulnerabilities

CVE-2023-29132

• Severity: medium (CVSS 5.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.8% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2023-04-14 · updated 2026-06-17
• Weakness: CWE-416

Description

Irssi 1.3.x and 1.4.x before 1.4.4 has a use-after-free because of use of a stale special collector reference. This occurs when printing of a non-formatted line is concurrent with printing of a formatted line.

Affected products

• Irssi: from 1.3.0 before 1.4.4 — fixed in 1.4.4

How to fix

Upgrade to a fixed version: Irssi 1.4.4. Check the vendor advisory for mitigations.

References

• https://irssi.org/security/irssi_sa_2023_03.txt
• https://www.openwall.com/lists/oss-security/2023/03/30/5
• https://irssi.org/security/irssi_sa_2023_03.txt
• https://www.openwall.com/lists/oss-security/2023/03/30/5

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