high · CVSS v3 7.4

CVE-2026-120830

A flaw was found in libslirp in icmp_forward_error(). When building an ICMP error response, the length of the quoted ori…

Description

A flaw was found in libslirp in icmp_forward_error(). When building an ICMP error response, the length of the quoted original IPv4 packet was taken from the IP header without clamping it to the actual buffer length. A truncated or malformed packet could cause an out-of-bounds heap read, leaking host memory into the ICMP error packet returned to a guest or container.

Scores

Severity
high
CVSS v2
6.1
CVSS v3
7.4
CVSS v4
—
EPSS
—

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