CVE-2026-56099 - OpenBSD mpls_do_error Kernel Stack Memory Disclosure via MPLS Input

CVE-2026-56099 - OpenBSD mpls_do_error Kernel Stack Memory Disclosure via MPLS Input

https://cvefeed.io/rssfeed/latest.atom / Thu, 06/18/2026 - 23:45
CVE ID :CVE-2026-56099
Published : June 18, 2026, 7:29 p.m. | 2 hours, 10 minutes ago
Description :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.
Severity: 6.9 | MEDIUM
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