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CVE-2026-25690

An improper neutralization of argument delimiters in a command ('argument injection') vulnerability in Fortinet FortiDeceptor 6.0.0…

Medium4.0EPSS 0.24%
Published
Updated
Reserved
Assigned by
fortinet

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.

Timeline

  1. ID reserved

    By fortinet

  2. · 3 months later

    Published

  3. · 6 months later

    Record updated

Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.

Scores

CVSS scores of CVE-2026-25690, by who scored it
Scored byCVSSScoreVector
fortinetCNA (assigner)3.1Medium4.0CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N/E:F/RL:O/RC:C
NVDNVD · Analyzed3.1Medium6.5CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
EPSS (exploitation in 30 days)
0.24% · top 85% of all CVEs (7 Nov 2026)
CISA SSVC
Exploitation: none · Automatable: no · Technical impact: partial
Loading the EPSS history…

The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 4.0.

Weakness

Affected products

  • Fortinet · FortiDeceptor

    • affected 6.0.0 – ≤ 6.0.2
    • affected 5.3.0 – ≤ 5.3.3
    • affected 5.2.0 – ≤ 5.2.1
    • affected 5.1.0
    • affected 5.0.0

What to do

Solution: Upgrade to FortiDeceptor version 6.3.0 or above Upgrade to FortiDeceptor version 6.1.0 or above

References (1)

Sources

The same CVE in the primary databases and aggregators, to check against.

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Record last updated .