CVE-2026-13321
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- CVE-2026-13321
CVE Details
| Release Date: | 2026-07-22 | |
| Impact: | Important | What is this? |
Description
The BIND resolver accepts validly-signed NSEC records where the "Next Domain Name" field points outside the signer's zone. This issue affects BIND 9 versions 9.11.0 through 9.18.50, 9.20.0 through 9.20.24, 9.21.0 through 9.21.23, 9.11.3-S1 through 9.18.50-S1, and 9.20.9-S1 through 9.20.24-S1.
See more information about CVE-2026-13321 from MITRE CVE dictionary and NIST NVD
NOTE: The following CVSS metrics and score provided are preliminary and subject to review.
CVSS v3 metrics
| Base Score: | 8.6 |
| Vector String: | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N |
| Version: | 3.1 |
| Attack Vector: | Network |
| Attack Complexity: | Low |
| Privileges Required: | None |
| User Interaction: | None |
| Scope: | Changed |
| Confidentiality Impact: | None |
| Integrity Impact: | High |
| Availability Impact: | None |
Errata information
| Platform | Errata | Release Date |
| Oracle Linux version 8 (bind) | ELSA-2026-54654 | 2026-08-13 |
| Oracle Linux version 8 (bind9.16) | ELSA-2026-54509 | 2026-08-13 |
| Oracle Linux version 9 (bind) | ELSA-2026-54510 | 2026-08-13 |
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