CVE-2026-115449

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.

CVSS v3 3.5 LOW

3.5^/10

CVSS v3 : LOW

Vector :

Exploitability : 1.8 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required LOW

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact NONE

Availability Impact NONE

Scope CHANGED

References

Link	Resource
https://access.redhat.com/security/cve/CVE-2026-115449
https://bugzilla.redhat.com/show_bug.cgi?id=2558916

Configurations

No configuration.

History

22 Oct 2026, 22:18

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-10-22 22:18

Updated : 2026-10-23 16:44

NVD link : CVE-2026-115449

Mitre link : CVE-2026-115449

CVE.ORG link : CVE-2026-115449

JSON object : View

Products Affected

No product.

CWE

CWE-200

Exposure of Sensitive Information to an Unauthorized Actor

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