CVE-2026-102486
High
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.
SeverityHigh
CVSS7.5
Exploit probability—
ProductNtpsec
PublishedOct 21, 2026
First seenOct 21, 2026
Weakness typeCWE-125Out-of-bounds read
How to fix
Update
- NTPsec ntpsec1.2.6 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| NTPsec ntpsec | 1.1.4 ≤ v < 1.2.6 | 1.2.6 |
Check your version
Choose the product and enter the version you run to see whether it falls in the affected range.
In the Intelligence 360 plan
Attack Surface Management
See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.