cve.bz

CVE-2021-40083

7.5 highEPSS 1.4%

High (7.5) in nic knot resolver. EPSS 1.4% chance of exploitation in the next 30 days.

Knot Resolver before 5.3.2 is prone to an assertion failure, triggerable by a remote attacker in an edge case (NSEC3 with too many iterations used for a positive wildcard proof).

Severity

CVSS 3.1

7.5 high
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS
1.4% chance of exploitation in the next 30 days; higher than 72% of CVEs (scores of 2026-10-31)
CWE
CWE-617
Published
Modified
Record from
the NVD, synced

Affected

References

Check your stackJSON