Free and open · new CVEs checked every 20 minutesStatusRSSOpen dataContact

CVE-2026-52684: If the auth responds very slowly and the records expire in between, the capping of TTLs is not enforced for la

21
Routine
LOW 3.7REMOTE

CVE-2026-52684 is a low-severity flaw (CVSS 3.7) affecting affected software. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

If the auth responds very slowly and the records expire in between, the capping of TTLs is not enforced for lack of data. This does not happen on regular resolve as then then the child records are used immediately if not expired and thus valid, or the records are expired, and in that case not used. So this case can only happen if almost expired records are used to refresh the authoritative NS records.

Why this priority

  • Remotely exploitable, no login, no user action

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score3.7 (Low)
Attack vectorNetwork (remote)
Attack complexityHigh
Privileges neededNone
User interactionNone
EPSS exploit chance0.2% (top 87%)
CISA exploited listNo
Published2026-07-23
Last modified2026-10-24
Publisher (CNA): Open-Xchange

Share: LinkedIn · X · Reddit

Last updated 2026-10-24 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Timeline

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-52684?

No fixed release is listed yet. Watch the vendor advisory and apply any mitigation shown on this page.

Is CVE-2026-52684 being exploited?

CVE-2026-52684 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-52684 affect?

CVE-2026-52684 affects affected software. Severity is low (CVSS 3.7). If the auth responds very slowly and the records expire in between, the capping of TTLs is not enforced for lack of data. This does not happen on regular resolve as then then the child records are used immediately if not expired and thus v

How urgent is CVE-2026-52684?

Priority 21/100. Remotely exploitable, no login, no user action

References

← Back to latest CVEs

Get the weekly exploited-CVE digest by emailThe CVEs being attacked this week and how to fix them. No spam, unsubscribe any time.