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1 vulnerability found for src by openbsd
CVE-2026-56099 (GCVE-0-2026-56099)
Vulnerability from cvelistv5 – Published: 2026-06-18 19:29 – Updated: 2026-06-23 20:44 X_Open Source
VLAI
Title
OpenBSD mpls_do_error Kernel Stack Memory Disclosure via MPLS Input
Summary
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
5.3 (Medium)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-125 - Out-of-bounds Read
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://pop.argus-systems.ai/advisory/adv-040.html | technical-descriptionexploit |
| https://github.com/openbsd/src/commit/6a23123ec05… | patch |
| https://www.vulncheck.com/advisories/openbsd-mpls… | third-party-advisory |
| http://www.openwall.com/lists/oss-security/2026/06/19/3 | |
| http://seclists.org/fulldisclosure/2026/Jun/17 |
Impacted products
Date Public
2026-06-18 00:00
Credits
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