LOWCVSS v3.1 3.7Vulnerability

CVE-2026-121505

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.

Properties

Severity
LOW
Nvd fetched at
2026-11-03T17:20:13.885968+00:00
Cvss severity
LOW
Cvss score
3.7
Retrieved at
2026-11-03T17:21:18+00:00
Score
3.7
Cvss version
3.1
Last source
NVD
Cve id
CVE-2026-121505
Cvss vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
First seen by Signal
2026-11-03T17:21:18+00:00
Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
Published at
2026-11-03T15:17:37.557
Last modified
2026-11-03T16:15:28.703

Related Entities (1)

HAS_WEAKNESS (1)

→[Weakness]Out-of-bounds Read

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CVE-2026-121505 (CVSS v3.1 3.7) — Ninja Signal Threat Intelligence | Ninja Signal