CVE-2026-55706
5.8
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:L
Summary
sppp_pap_input in sys/net/if_spppsubr.c in OpenBSD before 076e2b1 allows authentication bypass via certain zero values for lengths.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| OpenBSD | OpenBSD | 0 < 076e2b1c1fc4ac0883a72d3544131ad5cee7adf8 | affected |
Weaknesses
- CWE-1284: CWE-1284 Improper Validation of Specified Quantity in Input
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: poc
- Automatable: no
- Technical Impact: partial
Additional References
References
- https://blog.argus-systems.ai/blog/openbsd-pap-27-year-auth-bypass.html
- https://www.openwall.com/lists/oss-security/2026/06/16/9
- https://github.com/openbsd/src/commit/076e2b1c1fc4ac0883a72d3544131ad5cee7adf8
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