> CVE-2026-20079 [CRITICAL]

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PUBLISHED
2026-03-04 18:16
MODIFIED
2026-03-04 18:16
CVSS_SCORE V3
10.0
EPSS (Prob. Exploit)
88.47%
Top 0.2%
⚠ CISA_KEV
⚡ EPSS ÉLEVÉ (88.5%)
DATA SOURCES:
NVD 🔗 2026-03-04 CISA KEV 🔗 CWE MITRE 🔗 2026-11-01 FIRST EPSS 🔗 2026-10-25

> DESCRIPTION

A vulnerability in the web interface of Cisco Secure Firewall Management Center (FMC) Software could allow an unauthenticated, remote attacker to bypass authentication and execute script files on an affected device to obtain root access to the underlying operating system. This vulnerability is due to an improper system process that is created at boot time. An attacker could exploit this vulnerability by sending crafted HTTP requests to an affected device. A successful exploit could allow the attacker to execute a variety of scripts and commands that allow root access to the device.

> AFFECTED_PRODUCTS

Cisco - Secure Firewall Management Center (FMC) and Security Cloud Control (SCC) Firewall Management

> CVSS V3 METRICS

CVSS_VECTOR
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
EXPLOITABILITY
3.9
IMPACT
6.0

> MÉTRIQUES CVSS DÉTAILLÉES

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Métrique Valeur Interprétation
AV (Vecteur d'Attaque)
Attack Vector
Network (N)
Exploit possible à distance via réseau (HTTP, API, etc.)
AC (Complexité d'Attaque)
Attack Complexity
Low (L)
Peu de conditions requises pour exploiter
PR (Privilèges Requis)
Privileges Required
None (N)
Aucune authentification requise
UI (Interaction Utilisateur)
User Interaction
None (N)
Aucune interaction utilisateur nécessaire
S (Périmètre)
Scope
Changed (C)
Impact s'étend au-delà du composant compromis
C (Impact Confidentialité)
Confidentiality Impact
High (H)
Divulgation totale d'informations
I (Impact Intégrité)
Integrity Impact
High (H)
Modification totale des données possible
A (Impact Disponibilité)
Availability Impact
High (H)
Interruption totale du service possible

> RÉSUMÉ DES IMPACTS

Confidentialité
High
Divulgation totale d'informations
Intégrité
High
Modification totale des données possible
Disponibilité
High
Interruption totale du service possible

> WEAKNESSES

CWE-288

> CWE DETAILED DESCRIPTIONS

CWE-288: Authentication Bypass Using an Alternate Path or Channel - The product requires authentication, but the product has an alternate path or channel that does not require authentication.

> HISTORIQUE DES MODIFICATIONS

Première apparition
04/03/2026 18:16
Source: NVD
📊 ENRICHISSEMENT 09/09/2026 20:15
KEV
Champ modifié: Catalogue KEV
Ancienne valeur:
Non
Nouvelle valeur:
Oui
📊 ENRICHISSEMENT 01/04/2026 06:01
CWE
Champ modifié: Description CWE
Ancienne valeur:
N/A
Nouvelle valeur:
CWE-288: Authentication Bypass Using an Alternate Path or Channel - The product requires authentication, but the product has an alternate path or channel that does not require authentication.
Total des modifications: 2 Dernière mise à jour: 1 month ago

> REFERENCES

https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/ci...
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