WatchGuard AP (28 Sep): CVE-2026-86102 / 101891 unauth API RCE & access (CVSS 9.3) + auth CLI inject — fix 3.4.8
WatchGuard PSIRT (published 28 September 2026; Cyber Security News amplify 29 Sep) discloses three flaws in WatchGuard access-point firmware. CVE-2026-86102 (CVSS v4 9.3) — OS command injection in the internal management API: unauthenticated attacker with network reach to the AP can run arbitrary shell commands. CVE-2026-101891 (CVSS v4 9.3) — improper access control on an internal API service allowing unauthenticated access to protected functionality. CVE-2026-87969 (CVSS v4 8.6) — authenticated administrator command injection via the diagnostic CLI. Affected: WatchGuard AP 1.0 through 3.4.7. Fixed: 3.4.8. Vendor/CSN: no public evidence of active exploitation at disclosure. Distinct from desk watchguard-fireware-iked-20260827 (Fireware OS iked / Dimension cluster). Primary: WatchGuard PSIRT advisory list; wire: CSN 29 Sep.
- Product
- WatchGuard AP (access point firmware; internal management API / diagnostic CLI)
- Versions
- Affected: WatchGuard AP >= 1.0 and < 3.4.8 (1.0 through 3.4.7). Fixed: 3.4.8 (28 Sep 2026).
- CVSS
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N (CVE-2026-86102 AND CVE-2026-101891; CVE-2026-87969 8.6 WITH PR:H)- Exploited in Australia?
- unknown
- Patch to
- Upgrade WatchGuard AP firmware to 3.4.8+. Restrict AP management / internal API reach to trusted admin networks only; review admin/diagnostic CLI activity and rotate AP admin credentials if exposure suspected. Prioritise internet-reachable or poorly segmented wireless management paths.
Primary: WatchGuard PSIRT — AP advisories CVE-2026-86102 / 101891 / 87969 (28 Sep 2026) · Vendor: WatchGuard PSIRT (vendor primary) · CVE: CVE-2026-86102, CVE-2026-101891, CVE-2026-87969 · Cyber Security News — WatchGuard AP API command execution (29 Sep 2026)