An integer overflow vulnerability in the WebSocket connection handling used by WatchGuard Fireware OS's Access Portal allows a remote…
An integer overflow vulnerability in the WebSocket connection handling used by WatchGuard Fireware OS's Access Portal allows a remote, unauthenticated attacker to write beyond the bounds of a heap buffer by sending a specially crafted request while the Access Portal feature is enabled.
Read at NIST National Vulnerability Database (CVE API 2.0)
- Vendor
- WatchGuard
- Product
- Fireware OS
- CVSS v4.0
- 9.2 AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
- EPSS
- 0.004 (p39)
- Weakness
- CWE-190, CWE-288, CWE-787
- Exposure class
- Edge / VPN / firewall
- NVD status
- Received
Why it ranks 32 (Notable)
- CVSS v4.0 9.2 critical
- Exposed product class: edge / VPN / firewall
- Recency: items published within 24 hours gain 15, within 72 hours 6, within 7 days 2.
Links
- NIST National Vulnerability Database (CVE API 2.0) (nvd.nist.gov)
- CVE-2026-93866 on this site · NVD · CVE.org · Vulnpedia