DNS Record Handling Flaw in BIND by Internet Systems Consortium
CVE-2026-10822

6.5MEDIUM

Key Information:

Vendor

Isc
Status
Bind 9
Vendor
CVE Published:
22 July 2026

Badges

👾 Exploit Exists

What is CVE-2026-10822?

An issue in BIND allows the acceptance of an invalid DNS record data structure specifying a PRIVATEDNS algorithm. When an improperly defined length exceeds the actual identifier data, it will lead to a faulty consistency check, potentially causing the service to abort unexpectedly during text rendering.

Affected Version(s)

BIND 9 9.18.0 <= 9.18.50

BIND 9 9.20.0 <= 9.20.24

BIND 9 9.21.0 <= 9.21.23

References

https://kb.isc.org/docs/cve-2026-10822
vendor-advisory
https://downloads.isc.org/isc/bind9/9.20.26
patch
https://downloads.isc.org/isc/bind9/9.21.24
patch

CVSS V3.1

Score:
6.5
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

.