CVE-2026-77119
NSEC3 insecure-referral proof can use unrelated cached NSEC3 RRsets
CVSS 3.1 5.9 MEDIUMCheck source for fixed versionsKEV status unknown
cve-program · CVE-2026-77119
PublishedA validly signed NSEC3 from an unrelated sibling zone may be accepted as an insecurity proof, downgrading a secure delegation and letting a forged unsigned answer through. This issue affects BIND 9 versions 9.11.0 through 9.18.50, 9.20.0 through 9.20.27, 9.21.0 through 9.21.25, 9.11.3-S1 through 9.18.50-S1, and 9.20.9-S1 through 9.20.27-S1.
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CVE-2026-77119 · CVE overview and exploitation status
cve-program · CVE-2026-77119
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