All vulnerabilities
CVE-2026-102486

Out-of-bounds Read in ntpsec

NTPsec ntpsec
Open in ThreatlineRecord JSON
CVSS
7.5High
ExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)0.75%Chance of exploitation activity in the next 30 days, higher than 54% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed in1.2.6Fixed versionCVE List
Published21 Oct 2026Updated 21 Oct 2026CVE List

What fixes it

A fixed version on one release line is not the upgrade target for every line. Check your exact version and any vendor backports.

Description

Out-of-bounds read in NTS extension field parsing in NTPsec ntpd 1.1.4 through 1.2.5 allows a remote attacker to crash the daemon via an NTS Authenticator and Encrypted Extension Fields (AEEF) field with an oversized nonce length.

Text from CVE List

Affected versions 1

  • ntpsecaffected: 1.1.4 before 1.2.6CVE List

References 3