
FortiClient CORS flaw allows website-triggered RCE (CVE-2026-121529)
Fortinet says the CVSS 9.1 bug is not known exploited; fixes are 7.4.8 and 7.2.15, with no virtual patch.
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Fortinet says the CVSS 9.1 bug is not known exploited; fixes are 7.4.8 and 7.2.15, with no virtual patch.
The CVSS 7.4 issue also covers FortiSASE, FortiProxy and FortiPam; the notice lists no versions or exploitation.

Fortinet patched 10 vulnerabilities including two critical authentication flaws, CVE-2026-84390 (CVSS 9.6) and CVE-2026-84388 (CVSS 9.1), in FortiMonitorOnSight and the FortiPAM Chrome extension.

Canadian Cyber Centre advisory AV26-898 flags Fortinet vulnerabilities across FortiOS, FortiProxy, FortiPAM, FortiSandbox and FortiMonitorOnSight, urging administrators to apply updates

Fortinet patched CVE-2026-84388 (CVSS 9.1) in its FortiPAM Chrome extension, letting malicious websites alter proxy settings, open tabs and record sessions.
Fortinet patched a low-severity null pointer dereference (CVSS 2.5) in FortiOS, FortiProxy, and FortiPAM that lets authenticated attackers crash the httpsd daemon.
Fortinet discloses CVSS 9.1 improper authentication in FortiPAM's Chrome extension allowing unauthenticated attackers to proxy victims' browser traffic.
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