PT-2026-136134

CVE-2026-121505

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Published

2026-11-03

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Updated

2026-11-03

Description by

CVSS 3.1
3.7
Low
MetricsAV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
An out-of-bounds read in the NTS-KE client response parser (nts client process response core) in NTPsec before 1.2.4 allows a malicious NTS-KE server to read the client's stack memory, including pointers that defeat ASLR, which the client then sends in cleartext as NTS cookies, via an NTS-KE record whose declared length exceeds the data received.
Exploitability
Fix
Impacts
Vendors
Affected products
Weakness enumeration
CWE-125: Out-of-bounds Read
Related identifiers
CVE-2026-121505
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