cve.bz

CVE-2021-25214

6.5 mediumEPSS 6.4%

Medium (6.5). EPSS 6.4% chance of exploitation in the next 30 days.

In BIND 9.8.5 -> 9.8.8, 9.9.3 -> 9.11.29, 9.12.0 -> 9.16.13, and versions BIND 9.9.3-S1 -> 9.11.29-S1 and 9.16.8-S1 -> 9.16.13-S1 of BIND 9 Supported Preview Edition, as well as release versions 9.17.0 -> 9.17.11 of the BIND 9.17 development branch, when a vulnerable version of named receives a malformed IXFR triggering the flaw described above, the named process will terminate due to a failed assertion the next time the transferred secondary zone is refreshed.

Severity

CVSS 3.1

6.5 medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS
6.4% chance of exploitation in the next 30 days; higher than 93% of CVEs (scores of 2026-10-31)
CWE
CWE-617
Published
Modified
Record from
the NVD, synced

Affected

References

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