Description
A buffer overflow vulnerability in the URL parser of the zhttpd web server in Zyxel VMG8825-T50K firmware versions prior to V5.50(ABOM.5)C0 could allow an unauthenticated attacker to cause denial-of-service (DoS) conditions and potentially execute arbitrary code by sending a specially crafted HTTP request.
Question to Ask Vendors:
- Can you confirm whether your systems are affected by CVE-2025-7673, and if so, what steps are you currently taking to mitigate this vulnerability?
- What is your estimated timeline for fully resolving CVE-2025-7673 in your products or services, and how will you communicate updates on this issue to us as your customer?
Recommended Actions:
- Check out the advisory links provided below.
References:
- http://webappsec.pbworks.com/Buffer-Overflow
- https://capec.mitre.org/data/definitions/10.html
- https://capec.mitre.org/data/definitions/100.html
- https://capec.mitre.org/data/definitions/14.html
- https://capec.mitre.org/data/definitions/24.html
- https://capec.mitre.org/data/definitions/42.html
- https://capec.mitre.org/data/definitions/44.html
- https://capec.mitre.org/data/definitions/45.html
- https://capec.mitre.org/data/definitions/46.html
- https://capec.mitre.org/data/definitions/47.html
- https://capec.mitre.org/data/definitions/67.html
- https://capec.mitre.org/data/definitions/8.html
- https://capec.mitre.org/data/definitions/9.html
- https://capec.mitre.org/data/definitions/92.html
- https://nvd.nist.gov/vuln/detail/CVE-2025-7673