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CVE-2026-55706

sppp_pap_input in sys/net/if_spppsubr.c in OpenBSD before 076e2b1 allows authentication bypass via certain zero values for lengths.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:5a17476770cc720121808c2bbc346eec21824ee77a3321c8307f8c91e0ad3077
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0

Affected products and versions

1 source assertion
{"defaultStatus":"unaffected","product":"OpenBSD","vendor":"OpenBSD","versions":[{"lessThan":"076e2b1c1fc4ac0883a72d3544131ad5cee7adf8","status":"affected","version":"0","versionType":"git"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:96eaef1c90bfadcf44c39b993744b6c45c59d847afa427a342d9ff31b798e445 · sha256:a021dc580d8e610c… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"HIGH","attackVector":"ADJACENT_NETWORK","availabilityImpact":"LOW","baseScore":5.8,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"LOW","privilegesRequired":"NONE","scope":"CHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:L","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:96eaef1c90bfadcf44c39b993744b6c45c59d847afa427a342d9ff31b798e445 · sha256:a021dc580d8e610c… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

1 source assertion
{"cweId":"CWE-1284","description":"CWE-1284 Improper Validation of Specified Quantity in Input","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:96eaef1c90bfadcf44c39b993744b6c45c59d847afa427a342d9ff31b798e445 · sha256:a021dc580d8e610c… · /containers/cna/problemTypes/0/descriptions/0

Source references

4 source assertions
{"url":"https://blog.argus-systems.ai/blog/openbsd-pap-27-year-auth-bypass.html"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:96eaef1c90bfadcf44c39b993744b6c45c59d847afa427a342d9ff31b798e445 · sha256:a021dc580d8e610c… · /containers/cna/references/0
{"tags":["exploit"],"url":"https://blog.argus-systems.ai/blog/poc-001-pap-bypass.py"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:96eaef1c90bfadcf44c39b993744b6c45c59d847afa427a342d9ff31b798e445 · sha256:a021dc580d8e610c… · /containers/adp/0/references/0
{"url":"https://github.com/openbsd/src/commit/076e2b1c1fc4ac0883a72d3544131ad5cee7adf8"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:96eaef1c90bfadcf44c39b993744b6c45c59d847afa427a342d9ff31b798e445 · sha256:a021dc580d8e610c… · /containers/cna/references/2
{"url":"https://www.openwall.com/lists/oss-security/2026/06/16/9"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:96eaef1c90bfadcf44c39b993744b6c45c59d847afa427a342d9ff31b798e445 · sha256:a021dc580d8e610c… · /containers/cna/references/1

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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