PatchTheCVEex5510-b0 firmware vulnerabilities and fixes
Recent CVEs affecting ex5510-b0 firmware, with upgrade or downgrade steps. 2 tracked.
Also searched as: ex5510 b0 firmware, ex5510-b0firmware.
ex5510-b0 firmware has 2 tracked vulnerabilities, 1 critical. A fixed release or vendor patch exists for 0. Most recent: 2026-02-24. Highest priority: CVE-2025-7673 (score 52/100).
- CVE-2025-7673 CRITICAL 9.8 MITIGATE MITIGATE A buffer overflow vulnerability in the URL parser of the zhttpd web server in Zyxel VMG8825-T50K firmware vers
- CVE-2025-11847 MEDIUM 4.9 MITIGATE MITIGATE A null pointer dereference vulnerability in the IP settings CGI program of the Zyxel VMG3625-T50B firmware ver
FAQ
How do I fix ex5510-b0 firmware vulnerabilities?
Open the CVE for your version, check the affected range, then follow the listed action: upgrade to the fixed release, or downgrade or mitigate if no fix exists yet. Commands for each OS are shown on every CVE page.
Is ex5510-b0 firmware being exploited right now?
None of the tracked ex5510-b0 firmware CVEs are on the CISA Known Exploited Vulnerabilities list at the moment. This is checked every 20 minutes.
Which ex5510-b0 firmware CVE should I patch first?
CVE-2025-7673 currently ranks highest (52/100): A buffer overflow vulnerability in the URL parser of the zhttpd web server in Zyxel VMG8825-T50K firmware vers.