CVE-2026-102486: high-severity vulnerability in ntpsec
Out-of-bounds Read in ntpsec
Published · Updated
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21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 7.5epss 0.5%
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.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected products
NTPsec · ntpsecRelated CVEs — ntpsec
In the same product, most dangerous first.
CVE-2021-22212MEDIUMCVE-2021-22212EPSS 0.5%CVE-2023-4012HIGHIncomplete Internal State Distinction in ntpsecEPSS 0.4%CVE-2026-102483HIGHReachable Assertion in ntpsecEPSS 0.4%CVE-2026-102484MEDIUMHeap-based Buffer Overflow in ntpsecEPSS 0.2%CVE-2026-102485MEDIUMOut-of-bounds Read in ntpsecEPSS 0.2%CVE-2026-18321MEDIUMBuffer Copy without Checking Size of Input ('Classic Buffer Overflow') in ntpsecEPSS 0.1%