What is CVE-2026-10822?

CVE-2026-10822 is a medium-severity vulnerability in Isc Bind 9, classified under Reachable Assertion. CVSS score: 6.5/10. Published 2026-07-22.

How severe is CVE-2026-10822?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Vulnerability in Isc Bind 9

CVE-2026-10822

If BIND encounters a particular invalid data structure in a DNS record, it will accept the invalid data, and may subsequently abort and exit. BIND will first need to store a DNS record for a key (KEY, DNSKEY, etc.). That key must specify…

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.

Affected products

Isc Bind 9 — versions 9.18.0, 9.20.0, 9.21.0

Weakness classification (CWE)

CWE-617 — Reachable Assertion
CWE-1284 — Improper Validation of Specified Quantity in Input

References

security-officer@isc.org (vendor-advisory)
security-officer@isc.org (patch)
security-officer@isc.org (patch)

Frequently asked questions

What is CVE-2026-10822?: CVE-2026-10822 is a medium-severity vulnerability in Isc Bind 9, classified under Reachable Assertion. CVSS score: 6.5/10. Published 2026-07-22.
How severe is CVE-2026-10822?: Medium severity. CVSS v3 base score is 6.5 out of 10.