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High 8.3Published Jun 17, 2026
CVE-2026-55706sppp_pap_input in sys/net/if_spppsubr.c in OpenBSD before 076e2b1 allows authentication bypass via certain zero values for lengths.
Updated under an hour ago ()
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sppp_pap_input in sys/net/if_spppsubr.c in OpenBSD before 076e2b1 allows authentication bypass via certain zero values for lengths.
- CVSS
- 8.3 HIGH (v3.1, NVD)CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
- Weakness (CWE)
- CWE-1284
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Not given
- NVD analysis
- Analyzed
- Record last updated
- Jul 13, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
openbsd openbsd openbsd:openbsd | through 7.6 | NVD |
References
- https://blog.argus-systems.ai/blog/openbsd-pap-27-year-auth-bypass.htmlthird-party-advisory, exploit
- https://github.com/openbsd/src/commit/076e2b1c1fc4ac0883a72d3544131ad5cee7adf8patch
- https://www.openwall.com/lists/oss-security/2026/06/16/9exploit, mailing-list, patch, third-party-advisory
- https://blog.argus-systems.ai/blog/poc-001-pap-bypass.pyexploit
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.