AUGUST 4, 2026
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Case File

CVE-2025-40775

HIGH · CVSS 7.5 EPSS 12.44%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2025-05-21 · Last synced 2026-08-04

CyberRota Analysis

This is a high severity vulnerability with a CVSS score of 7.5. Its EPSS score suggests a 12.4% probability of exploitation in the next 30 days.

CVE
CVE-2025-40775
Severity
HIGH
CVSS
7.5
EPSS
12.44%

Original NVD Description

When an incoming DNS protocol message includes a Transaction Signature (TSIG), BIND always checks it. If the TSIG contains an invalid value in the algorithm field, BIND immediately aborts with an assertion failure. This issue affects BIND 9 versions 9.20.0 through 9.20.8 and 9.21.0 through 9.21.7.