VulnSocial

CVE-2025-55018Disclosure(fortinet / fortios)

LOWCVSS 5.8 · MEDIUM

Signal is active with 1 mentions in latest observed window

Immediate actions

  • Patch fortinet fortios systems immediately

Recommended action window: Monitor and triage in normal cycle

NVD description

An inconsistent interpretation of http requests ('http request smuggling') vulnerability in Fortinet FortiOS 7.6.0, FortiOS 7.4.0 through 7.4.9, FortiOS 7.2 all versions, FortiOS 7.0 all versions, FortiOS 6.4.3 through 6.4.16 may allow an unauthenticated attacker to smuggle an unlogged http request through the firewall policies via a specially crafted header

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0.5/ 10 priority

Sources & remediation

Vendor / third-party advisories
Other references
Weakness type (CWE)
CWE-444

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

AVAILABLE

Momentum

STABLE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

  • fortios

Threat summary

  • Patch or workaround signal is available
  • 2 mentions across 2 observed days
  • Momentum state: stable

What's happening

  • Patch or workaround mentioned in 1 signal
  • Technical details provided in 1 signal
  • Disclosure: 1 classified signal
  • Peaked 1d ago at 1 mentions (2026-02-13); latest day: 1
  • 2 total mentions across 2 days

Affected systems

Vendors
fortinet
Products
fortios

1 version affected across 1 product

Deep dive

Activity timeline2 mentions / 2d
00111Mentions · 2026-02-13: 1Mentions · 2026-02-19: 1Patch / Workaround · 2026-02-19: 1Technical Details · 2026-02-13: 102-1302-19
Signal classification2 categories
Disclosure
150.0%
Patch
150.0%
Referenced assets3 URLs
Classification over time
DateTotalLabels
2026-02-131
Disclosure1
2026-02-191
Patch1
Full discourse2 posts
  • Ikoula@Ikoula
    Patch

    [Vulnérabilité critique FortiOS 🚨] Une vulnérabilité majeure (CVE-2025-55018) impacte les versions suivantes de FortiOS : 7.2 (toutes versions) / 7.4.0 à 7.4.9 / 7.6.0 Mise à jour requise : FortiOS 7.4.11 minimum. Pour plus d'informations : 👉 https://www.cert.ssi.gouv.fr/avis/CERTFR-2026-AVI-0147/ 👉 https://fortiguard.fortinet.com/psirt/FG-IR-25-667

    Post summary

    CVE-2025-55018 is a critical vulnerability affecting several FortiOS versions; a patch (minimum FortiOS 7.4.11) is required and advisories are available via the provided links.

    00001143
    5.8K followersView on X
  • Autumn Good@autumn_good_35
    Disclosure

    『allow an unauthenticated attacker to smuggle an unlogged http request through the firewall policies via a specially crafted header』 CVE-2025-55018 Request smuggling attack in FortiOS GUI https://www.fortiguard.com/psirt/FG-IR-25-667

    Post summary

    A newly disclosed vulnerability (CVE‑2025‑55018) in FortiOS GUI permits unauthenticated attackers to smuggle unlogged HTTP requests through firewall policies using specially crafted headers.

    00000389
    6.7K followersView on X
CPE platform detail2 entries

2 of 2 entries

PartVendorProductVersionTarget SWTarget HW
OSfortinetfortios---
OSfortinetfortios7.6.0--

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