A stack-based buffer overflow vulnerability in Fireware OS's WireGuard configuration processing allows a remote…
WatchGuard · Fireware OS
A stack-based buffer overflow in the WireGuard configuration processing of WatchGuard's Fireware OS lets an attacker tamper with a FireCloud Gateway configuration payload and potentially run arbitrary code or cause a denial of service. Exploitation requires a man-in-the-middle position with TLS-decrypted access to the traffic between the Firebox and WatchGuard Cloud, and no authentication or user interaction is needed.
A stack-based buffer overflow vulnerability in Fireware OS's WireGuard configuration processing allows a remote attacker that has man-in-the-middle TLS-decrypted access between the Firebox and WatchGuard Cloud to create a Denial of Service condition and potentially execute arbitrary code by tampering with a FireCloud Gateway configuration payload.
- Exploited
- Not confirmed
- Reports
- 0
- Tactics
- 0/15
Exploitation timelineDated milestones for a CVE: when it was disclosed, when exploit code became public, when exploitation was confirmed, and when threat reports named it.
Disclosed on 27 Oct 2026. No public exploit code or confirmed exploitation is recorded.
MITRE ATT&CKA public catalogue of the techniques attackers use, maintained by MITRE. Patchfirst uses it to describe what attackers do with a vulnerability. techniques
No techniques linkedNo ATT&CK techniques are linked to this CVE yet. MITRE CTID has not mapped it, and no report passage in the corpus ties it to a technique.
What security researchers reported
Not named in any threat report yetAlso mentioned in 2 community threat pulses (AlienVault OTX)
Weaker evidencePulses are indicator collections that anyone can publish. A mention is not confirmation of exploitation.
- Known_Cve | Oct 30, 2026 | Part 2/229 Oct 2026
- Known_Cve | Oct 29, 2026 | Part 3/328 Oct 2026