CVE-2026-56099

CVE.org · Published

Record status: Published
Identifier year (not publication year): 2026
Source publication: Jun 18, 2026
Source updated: Jul 14, 2026
Imported by cveboard: Oct 24, 2026
Source snapshot: cve_2026-10-24_midnight_baseline · Oct 24, 2026

CNA source text (English)

OpenBSD mpls_do_error Kernel Stack Memory Disclosure via MPLS Input

OpenBSD before commit 6a23123 (2026-06-18) contains an out-of-bounds read vulnerability in the mpls_do_error function within sys/netmpls/mpls_input.c that allows remote attackers to disclose kernel stack memory by sending crafted MPLS frames with 16 labels and no Bottom-of-Stack bit set.

Scoped product and version facts

Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.

Exploitation unknown; this catalogue does not assess exploitation.

src

Vendor: openbsd
Product: src
Platforms: Unknown
Default status: affected

src · Scoped product and version facts
Version (version)	Status (status)	Version scheme (versionType)	Exclusive end (lessThan)	Inclusive end (lessThanOrEqual)	Status changes (at → status)
0	`affected`	git	6a23123ec05f1eb29cfcaae0f3a468b2e1983cfd	Unavailable	None listed