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VulnerabilityPublished Updated

CVE-2026-25690: Fortinet FortiDeceptor · Information Disclosure

Affects Fortinet FortiDeceptorSource CVE Database V5

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Public exploit available · CVSS 4.0 Medium · patch available : patch Fortinet FortiDeceptor as a priority.

Data as of 30 Oct 2026, 06:59 UTC

CVSS 3.1 base score
4.0Medium
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.2% chance of exploitation in 30 days – higher than 15% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N/E:F/RL:O/RC:C

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 12 May 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: evidence found.

    CVSS exploit maturity: proof of concept public

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), CVSS vector, the Metasploit, Exploit-DB and nuclei-templates index as of 29 Oct 2026.

What to do

Affected software

ProductAffectedFixed in
FortinetFortiDeceptorAffected
  • >=6.0.0 <=6.0.2
  • >=5.3.0 <=5.3.3
  • >=5.2.0 <=5.2.1
  • =5.1.0
  • =5.0.0
Fixed in–

CPE configurations (11)

  • cpe:2.3:a:fortinet:fortideceptor:6.0.2:*:*:*:*:*:*:*
  • cpe:2.3:a:fortinet:fortideceptor:6.0.1:*:*:*:*:*:*:*
  • cpe:2.3:a:fortinet:fortideceptor:6.0.0:*:*:*:*:*:*:*
  • cpe:2.3:a:fortinet:fortideceptor:5.3.3:*:*:*:*:*:*:*
  • cpe:2.3:a:fortinet:fortideceptor:5.3.2:*:*:*:*:*:*:*
  • cpe:2.3:a:fortinet:fortideceptor:5.3.1:*:*:*:*:*:*:*

AI-suggested

An official fix is available from Fortinet for the affected versions. It is recommended to apply the vendor-provided patches promptly to remediate this vulnerability. Since the fix is official and available, no additional mitigations are required beyond patching.

Description

An improper neutralization of argument delimiters in a command ('argument injection') vulnerability in Fortinet FortiDeceptor 6.0.0 through 6.0.2, FortiDeceptor 5.3.0 through 5.3.3, FortiDeceptor 5.2.0 through 5.2.1, FortiDeceptor 5.1 all versions, FortiDeceptor 5.0 all versions may allow an authenticated attacker with at least read-only admin permission to read log files via HTTP crafted requests.

References

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