CVE-2025-60693: Linksys E1200 v2 stack buffer overflow in httpd get_merge_mac

CVE-2025-60693 · Severity: medium · CVSS 6.5 · Published 2025-11-13

A security vulnerability exists in the Linksys E1200 v2 router, a device used to provide wireless internet connectivity in homes and small offices. An attacker can exploit this flaw by sending a specially crafted web request to the router's management interface. If successful, this could allow the attacker to crash the device or potentially take control of it, leading to a loss of internet access or unauthorized access to the network.

Technologies: Linksys E1200, Linksys E1200 Firmware. Vendors: Linksys.

Quick answers

Is CVE-2025-60693 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2025-60693 being exploited in the wild.
How severe is CVE-2025-60693?
Medium severity, with a CVSS score of 6.5, published 13 November 2025.
Which products and versions are affected?
Linksys E1200 Firmware E1200_v2.0.11.001_us.tar.gz.
Is there a fix for CVE-2025-60693?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2025-60693 attacked?
It is attacked over the network, in a network appliance.
Am I affected by CVE-2025-60693?
Check whether you run Linksys E1200 or Linksys E1200 Firmware at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

A stack-based buffer overflow exists in the 'get_merge_mac' function within the 'httpd' binary of Linksys E1200 v2 routers. The vulnerability is caused by the unsafe use of 'strcat' when concatenating up to six user-supplied CGI parameters (formatted as <parameter>_0 through <parameter>_5) into a fixed-size stack buffer (a2) without bounds checking. An unauthenticated remote attacker can exploit this by sending a POST request with overly long strings in these parameters, leading to memory corruption. This can result in arbitrary code execution or a denial of service (DoS) by crashing the web service. The issue was identified in firmware version E1200_v2.0.11.001_us.tar.gz.

Affected products

  • Linksys E1200 v2 Router Firmware E1200_v2.0.11.001_us.tar.gz

Timeline

  • 2025-11-13: advisory: NVD Published Date
  • 2025-11-13: disclosed: Initial disclosure by MITRE/CISA-ADP

References

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