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CVE-2026-121616

Linksys E5600

CVSS 4.0
5.5 medium
CISA KEV
Not listed
Technical details
Weakness
CWE-119, CWE-787
EPSS · 10 Nov 2026
0.30% · p23
Public resources
None found
Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P

No VulnCrest analysis published for this CVE yet. Below is the original CNA/NVD description, unmodified.

Description

A vulnerability was identified in Linksys E5600 1.1.0.26. Affected by this vulnerability is the function strcpy of the file /cgi-bin/mesh_login.cgi of the component JSON Request Parser. The manipulation of the argument username/password/token/source/cn/action leads to out-of-bounds write. The attack may be initiated remotely. The exploit is publicly available and might be used. 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.

Exploits & detection

No public PoC or detection template found yet.

Timeline

  • Published: 04 Nov 2026
  • Last modified upstream: 09 Nov 2026

Sources & licenses

CVE / CVSS / CWE
NVD record ↗ (unmodified). This product uses the NVD API but is not endorsed or certified by the NVD. CVE® © The MITRE Corporation.
Exploitation
CISA KEV (CC0) · EPSS by FIRST.org
References used for the analysis
Analysis, summary and remediation
© VulnCrest

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