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CVE PROGRAM SOURCE RECORD7.5 High

CVE-2026-77692

Unauthenticated remote crash of named via a single DoH SIG(0) request

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Status
Published
Published
Updated
Assigning organization
isc

Description

An attacker can cause `named` to abort by sending a crafted DNS-over-HTTPS request with a cryptographically invalid SIG(0) record, and then closing the transport connection prematurely. This issue affects BIND 9 versions 9.20.0 through 9.20.27, 9.21.0 through 9.21.25, and 9.20.9-S1 through 9.20.27-S1.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

ISC BIND 9

Default version status: unaffected

  • 9.20.0 to ≤ 9.20.27affected
  • 9.21.0 to ≤ 9.21.25affected
  • 9.20.9-S1 to ≤ 9.20.27-S1affected

References