AUGUST 4, 2026
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Case File

CVE-2023-2911

HIGH · CVSS 7.5 EPSS 2.45%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2023-06-21 · Last synced 2026-08-04

CyberRota Analysis

This is a high severity vulnerability with a CVSS score of 7.5. See the original NVD description below for full technical details.

CVE
CVE-2023-2911
Severity
HIGH
CVSS
7.5
EPSS
2.45%

Original NVD Description

If the `recursive-clients` quota is reached on a BIND 9 resolver configured with both `stale-answer-enable yes;` and `stale-answer-client-timeout 0;`, a sequence of serve-stale-related lookups could cause `named` to loop and terminate unexpectedly due to a stack overflow. This issue affects BIND 9 versions 9.16.33 through 9.16.41, 9.18.7 through 9.18.15, 9.16.33-S1 through 9.16.41-S1, and 9.18.11-S1 through 9.18.15-S1.

Related CVEs

Other vulnerabilities affecting the same vendor(s)