CVE-2026-52688
RRSIGs with too few labels can lead to bypass of DNSSEC wildcard validation
HIGH
7.5
CVSS Score
Published: July 23, 2026 at 08:03 AM UTC
Updated: October 24, 2026 at 01:10 PM UTC
2 products affected across 1 vendorRecursorAuthoritative
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Severity
HIGH7.5
Exploit prediction
EPSS 0.2%
SSVC
No known exploit
Description
RRSIGs with too few labels can lead to bypass of DNSSEC wildcard validation
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
Affected range stops below 5.2.12, so it looks safe — our inference, not a vendor statement
Affected range stops below 5.3.9, so it looks safe — our inference, not a vendor statement
Affected range stops below 5.4.4, so it looks safe — our inference, not a vendor statement
All versions
Remediation
No guide yetNo remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.
References (1)
SSVC — Action Prioritization
SSVCNo known exploitAutomatablePartial impact
SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.
CVSS
7.5HIGHOX
- Attack Vector
- NETWORK
- Complexity
- LOW
- Privileges
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- NONE
- Integrity
- HIGH
- Availability
- NONE
Vector?
Quick Info
StatusAWAITING ANALYSIS
CWE
CWE-295CWE-345
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