Affects widely deployed firewall product enabling remote RCE via LDAP auth; could disrupt networks.
CVE-2026-13368
Race condition UAF in LDAP auth enables remote code execution in iked.
Is CVE-2026-13368 being exploited?
Not confirmed. CVE-2026-13368 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 1.0% probability of exploitation in the next 30 days.
How severe is CVE-2026-13368?
CVE-2026-13368 is rated Critical with a CVSS score of 9.2. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2026-13368?
Yes. A fix has been recorded for CVE-2026-13368. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-13368 affect?
CVE-2026-13368 affects WatchGuard Fireware OS (Firebox) 11.0–11.12.4_Update1, 12.0–12.12, 2025.1–2026.2. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-13368?
Patch to latest Fireware OS; verify LDAP exposure; restart affected services after patch.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Remote code execution in iked via LDAP auth race; attacker could run arbitrary code as iked on Firebox.
Immediate action required
- affected>= 2025.1 and < 2026.2.1
- affected>= 12.0 and < 12.11.9
- affected>= 12.0 and < 12.5.19
As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.