Out-of-bounds Read in Pevans Socket
CVE-2026-12087
Socket versions before 2.041 for Perl have an out-of-bounds heap read. In Socket.xs, pack_ip_mreq_source() checks the length of its source argument before the argument is read, so the check tests the byte length carried over from the prec…
Vulnerability class: Buffer Overflow
CVSS v3 metric
CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H.
Affected products
- Pevans Socket — versions 0
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2026-12087?
- CVE-2026-12087 is a critical-severity vulnerability in Pevans Socket, classified under Out-of-bounds Read. CVSS score: 9.1/10. Published 2026-06-15.
- How severe is CVE-2026-12087?
- Critical severity. CVSS v3 base score is 9.1 out of 10.