Reachable Assertion Affecting bind package, versions [9.11.0,9.20.26)[9.21.0,9.21.24)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published25 Jul 2026
- disclosed22 Jul 2026
- creditUnknown
Introduced: 22 Jul 2026
NewCVE-2026-13204 (opens in a new tab)How to fix?
Upgrade bind to version 9.20.26, 9.21.24 or higher.
Overview
Affected versions of this package are vulnerable to Reachable Assertion in the validation process when both NSEC and NSEC3 records are present at the parent and an RRSIG exists for only one of these types. An attacker can cause the service to exit unexpectedly by crafting DNS responses that trigger this condition.