CVE-2026-120831EPSS p18.5%

CVE-2026-120831CVE-2026-120831

Description

A flaw was found in libslirp in if_output(). When moving a session from the fast queue to the batch queue, the code unlinked and reinserted an arbitrary packet via ifm->m_nextpkt instead of the session queue head, corrupting queue pointers. A guest generating burst traffic could crash the host networking process, causing a denial of service.

Scoring

CVSS 6.5 ()
VectorCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS0.27% probability of exploitation · percentile 18.5% · 2026-11-03T12:00:27Z
Last modified2026-11-03
Sourced from NVD + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.