CVE Catalog

CVE-2026-52688

HighCVSS 7.5
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.39%

32th percentile - higher than 32% of all known CVEs

Summary

RRSIGs with too few labels can lead to bypass of DNSSEC wildcard validation.

Risk Assessment

Risk of DNS response integrity compromise, potentially enabling man-in-the-middle attacks or traffic redirection.

Recommendation

Update DNS software to a version that properly validates the number of labels in RRSIG.

Related vulnerabilities

Original NVD description (English source)

RRSIGs with too few labels can lead to bypass of DNSSEC wildcard validation

Vulnerability data from NVD (NIST) · CISA KEV · EPSS