HIGHCVSS v3.1 7.5Vulnerability

CVE-2026-121617

A security flaw has been discovered in Linksys E5600 1.1.0.26. Affected by this issue is the function init_multipart of the file /cgi-bin/upload_fw.cgi of the component Header Parser. The manipulation results in out-of-bounds write. The attack may be launched remotely. The exploit has been released to the public and may be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way. This vulnerability only affects products that are no longer supported by the maintainer.

Properties

Severity
HIGH
Nvd fetched at
2026-11-04T05:29:06.845347+00:00
Cvss severity
HIGH
Cvss score
7.5
Retrieved at
2026-11-04T05:30:17+00:00
Score
7.5
Cvss version
3.1
Last source
NVD
Cve id
CVE-2026-121617
Cvss vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
First seen by Signal
2026-11-04T05:30:17+00:00
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Published at
2026-11-04T03:17:15.287
Last modified
2026-11-04T03:17:15.453

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CVE-2026-121617 (CVSS v3.1 7.5) — Ninja Signal Threat Intelligence | Ninja Signal