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CVE-2026-44195

OPNsense is a FreeBSD based firewall and routing platform. Prior to 26.1.7, a logic flaw in the OPNsense lockout_handler allows an unauthenticated attacker to continuously reset the authentication failure counter for their IP address. By interjecting a crafted username containing a success keyword ("Accepted" or "Successful login") between normal brute-force attempts, an attacker can prevent the failure counter from ever reaching the lockout threshold. This vulnerability is fixed in 26.1.7.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:3669cc52bbcf564d14dc9433b6e43890043db4e0ee2d9ea34a32937a9dcc6bfe
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0

Affected products and versions

1 source assertion
{"product":"core","vendor":"opnsense","versions":[{"status":"affected","version":"< 26.1.7"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:4a13234f07c8d03514e4ae5d2df5c229fb12449fc54095f0afeaf7567b99d7bc · sha256:08a46bcc7d27b365… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":5.3,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:4a13234f07c8d03514e4ae5d2df5c229fb12449fc54095f0afeaf7567b99d7bc · sha256:08a46bcc7d27b365… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

1 source assertion
{"cweId":"CWE-307","description":"CWE-307: Improper Restriction of Excessive Authentication Attempts","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:4a13234f07c8d03514e4ae5d2df5c229fb12449fc54095f0afeaf7567b99d7bc · sha256:08a46bcc7d27b365… · /containers/cna/problemTypes/0/descriptions/0

Source references

2 source assertions
{"tags":["exploit"],"url":"https://gist.github.com/sopex/b9786e72e2a5d9b1bbd81ed8477c351b"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:4a13234f07c8d03514e4ae5d2df5c229fb12449fc54095f0afeaf7567b99d7bc · sha256:08a46bcc7d27b365… · /containers/adp/0/references/0
{"name":"https://github.com/opnsense/core/security/advisories/GHSA-h3vx-4q27-rc42","tags":["x_refsource_CONFIRM"],"url":"https://github.com/opnsense/core/security/advisories/GHSA-h3vx-4q27-rc42"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:4a13234f07c8d03514e4ae5d2df5c229fb12449fc54095f0afeaf7567b99d7bc · sha256:08a46bcc7d27b365… · /containers/cna/references/0

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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