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Out-Of-Bounds Write in administrative interface

🗓️ 15 Apr 2026 00:00:00Reported by FortiGuard LabsType 
fortinet
 fortinet
🔗 fortiguard.fortinet.com👁 7 Views

Out-of-bounds write in FortiWeb CGI daemon allows remote privileged code execution.

Related
Detection
ReporterTitlePublishedViews
Family
attackerkb
attackerkb
CVE-2026-40688
14 Apr 202622:35
–attackerkb
bdu_fstec
BDU FSTEC
FortiWeb Buffer Overflow RCE
20 Apr 202600:00
–bdu_fstec
circl
Circl
CVE-2026-40688
15 Apr 202601:07
–circl
cnnvd
CNNVD
Fortinet FortiWeb buffer error vulnerability
14 Apr 202600:00
–cnnvd
cve
CVE
CVE-2026-40688
14 Apr 202622:35
–cve
cvelist
Cvelist
CVE-2026-40688
14 Apr 202622:35
–cvelist
euvd
EUVD
EUVD-2026-22808
15 Apr 202600:31
–euvd
nvd
NVD
CVE-2026-40688
14 Apr 202623:16
–nvd
ptsecurity
Positive Technologies
PT-2026-32963
14 Apr 202600:00
–ptsecurity
rapid7
Rapid7 Vulnerability Database (full)
CVE-2026-40688: Out-of-bounds Write
14 Apr 202600:00
–rapid7
Rows per page
Vulners
Node
OR
fortinetfortiwebRange8.0.0–8.0.3
fortinetfortiwebRange7.6.0–7.6.6
fortinetfortiwebRange7.4.0–7.4.11

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15 Apr 2026 00:00Current
8.2High risk
Vulners AI Score8.2
CVSS 3.17.2
EPSS0.06438
SSVC
7