CVE-2026-115449

Published Oct 22, 2026

Last updated 2 days ago

Overview

Description
A flaw was found in libslirp. When handling ICMP echo requests, the reply length is not updated to match the actual data received from the host. Under specific conditions where the normal ICMP socket is unavailable, this length mismatch causes the host's real IP address to be leaked to the guest in the echo reply, breaking the NAT isolation that user-mode networking is expected to provide.
Source
secalert@redhat.com
NVD status
Awaiting Analysis

Risk scores

CVSS 3.1

Type
Secondary
Base score
3.5
Impact score
1.4
Exploitability score
1.8
Vector string
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:N/A:N
Severity
LOW

Weaknesses

secalert@redhat.com
CWE-200

Social media

Hype score
Not currently trending