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

Source: https://junglewise.ai/threats/cve-2025-60693-linksys-e1200-v2-stack-buffer-overflow-in-httpd-get-merge-mac  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2025-11-13. Updated: 2026-07-05  
License: CC BY 4.0 with a link back

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](https://junglewise.ai/threats/technologies/e1200), [Linksys E1200 Firmware](https://junglewise.ai/threats/technologies/e1200-firmware). Vendors: [Linksys](https://junglewise.ai/threats/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

- [https://github.com/yifan20020708/SGTaint-0-day/blob/main/Linksys/Linksys-E1200/CVE-2025-60693.md](https://github.com/yifan20020708/SGTaint-0-day/blob/main/Linksys/Linksys-E1200/CVE-2025-60693.md)
- [https://www.linksys.com/](https://www.linksys.com/)

## Related threats

- [Linksys E1200 v2 stack overflow in validate_static_route](https://junglewise.ai/threats/cve-2025-60694-linksys-e1200-v2-stack-overflow-in-validate-static-route)
- [Cisco Linksys E1200 stack overflow in libshared.so](https://junglewise.ai/threats/cve-2025-60692-cisco-linksys-e1200-stack-overflow-in-libshared-so)
- [Linksys E1200 v2 stack buffer overflow in httpd apply_cgi](https://junglewise.ai/threats/cve-2025-60691-linksys-e1200-v2-stack-buffer-overflow-in-httpd-apply-cgi)
- [Linksys E1200 v2 stack overflow in httpd get_merge_ipaddr](https://junglewise.ai/threats/cve-2025-60690-linksys-e1200-v2-stack-overflow-in-httpd-get-merge-ipaddr)