CVE-2023-29132: irssi Use After Free
Modified
AliasesMGASA-2024-0063DEBIAN-CVE-2023-29132openSUSE-SU-2024:12848-1
Published 14-04-2023Last modified 06-02-2025
Vulnerability summary
CVE-2023-29132 is a medium (CVSS 5.3) Use After Free vulnerability in irssi. EPSS estimates a 0.81% chance of exploitation in the next 30 days, higher than 56.4% of scored vulnerabilities.
CVSS score
5.3/10
010
Medium · v3.1 (CVE.org)EPSS score
0.81%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded
Timeline
- 14-04-2023PublishedVulnerability first disclosed.
- 06-02-2025Last modifiedVulnerability information updated.
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.
CVSS metrics
3 scores · 3 sources · 1 versionMedium 5.3Preferred score · CVE.org (CNA)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:LSourcesAll 3 agree
- OSV · DebianEcosystem advisory · calculated5.3MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
- NVDNIST5.3MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
EPSS trend
Probability
0.81%
Chance of exploitation in the next 30 days
Percentile
56%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.81% on 22-09-2026
22-09-202622-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Debian1 product
- irssi< 1.4.3-2
Irssi1 product
- irssi≥ 1.3.0, < 1.4.4
Mageia1 product
- irssi< 1.4.3-1.1.mga9
Opensuse1 product
- irssi&distro=openSUSE Tumbleweed< 1.4.4-2.1
4 vendors · 4 products
