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CVE-2026-9539

MEDIUM SEVERITY

CVSS Score & Metrics

Base Score
6.5 / 10
Vector String
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N

Vulnerability Description

An out-of-bounds heap read and integer underflow in the TCP urgent data handling (sosendoob) in freedesktop.org libslirp version before v4.9.2 on hypervisor host environments (e.g., QEMU) allows a privileged guest VM attacker (root or CAP_NET_RAW) to leak gigabytes of sensitive host-process heap memory via sending crafted TCP segments with manipulated URG flags and urgent pointers (ti_urp).

Vulnerability Details

Published Date
Last Modified
CWE ID
CWE-125
Source
NVD

External References

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