Cisco Secure Firewall Management Center Authentication Bypass Remote Code Execution Vulnerability
Published Mar 4, 2026 ·Due Sep 12, 2026
10.0
CRITICALCVSS 3.1
EPSS 88.18%
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
-
- Version 10.0.0StatusaffectedConstraints-
- Version 10.0.1StatusaffectedConstraints-
- Version 7.0.0StatusaffectedConstraints-
- Version 7.0.0.1StatusaffectedConstraints-
- Version 7.0.1StatusaffectedConstraints-
- Version 7.0.1.1StatusaffectedConstraints-
- Version 7.0.2StatusaffectedConstraints-
- Version 7.0.2.1StatusaffectedConstraints-
- Version 7.0.3StatusaffectedConstraints-
- Version 7.0.4StatusaffectedConstraints-
- Version 7.0.5StatusaffectedConstraints-
- Version 7.0.6StatusaffectedConstraints-
- Version 7.0.6.1StatusaffectedConstraints-
- Version 7.0.6.2StatusaffectedConstraints-
- Version 7.0.6.3StatusaffectedConstraints-
- Version 7.0.7StatusaffectedConstraints-
- Version 7.0.8StatusaffectedConstraints-
- Version 7.0.8.1StatusaffectedConstraints-
- Version 7.0.9StatusaffectedConstraints-
- Version 7.1.0StatusaffectedConstraints-
- Version 7.1.0.1StatusaffectedConstraints-
- Version 7.1.0.2StatusaffectedConstraints-
- Version 7.1.0.3StatusaffectedConstraints-
- Version 7.2.0StatusaffectedConstraints-
- Version 7.2.0.1StatusaffectedConstraints-
- Version 7.2.1StatusaffectedConstraints-
- Version 7.2.10StatusaffectedConstraints-
- Version 7.2.10.1StatusaffectedConstraints-
- Version 7.2.10.2StatusaffectedConstraints-
- Version 7.2.11StatusaffectedConstraints-
- Version 7.2.2StatusaffectedConstraints-
- Version 7.2.3StatusaffectedConstraints-
- Version 7.2.3.1StatusaffectedConstraints-
- Version 7.2.4StatusaffectedConstraints-
- Version 7.2.4.1StatusaffectedConstraints-
- Version 7.2.5StatusaffectedConstraints-
- Version 7.2.5.1StatusaffectedConstraints-
- Version 7.2.5.2StatusaffectedConstraints-
- Version 7.2.6StatusaffectedConstraints-
- Version 7.2.7StatusaffectedConstraints-
- Version 7.2.8StatusaffectedConstraints-
- Version 7.2.8.1StatusaffectedConstraints-
- Version 7.2.9StatusaffectedConstraints-
- Version 7.3.0StatusaffectedConstraints-
- Version 7.3.1StatusaffectedConstraints-
- Version 7.3.1.1StatusaffectedConstraints-
- Version 7.3.1.2StatusaffectedConstraints-
- Version 7.4.0StatusaffectedConstraints-
- Version 7.4.1StatusaffectedConstraints-
- Version 7.4.1.1StatusaffectedConstraints-
- Version 7.4.2StatusaffectedConstraints-
- Version 7.4.2.1StatusaffectedConstraints-
- Version 7.4.2.2StatusaffectedConstraints-
- Version 7.4.2.3StatusaffectedConstraints-
- Version 7.4.2.4StatusaffectedConstraints-
- Version 7.4.3StatusaffectedConstraints-
- Version 7.4.4StatusaffectedConstraints-
- Version 7.4.5StatusaffectedConstraints-
- Version 7.4.6StatusaffectedConstraints-
- Version 7.4.7StatusaffectedConstraints-
- Version 7.6.0StatusaffectedConstraints-
- Version 7.6.1StatusaffectedConstraints-
- Version 7.6.2StatusaffectedConstraints-
- Version 7.6.2.1StatusaffectedConstraints-
- Version 7.6.3StatusaffectedConstraints-
- Version 7.6.4StatusaffectedConstraints-
- Version 7.6.5StatusaffectedConstraints-
- Version 7.7.0StatusaffectedConstraints-
- Version 7.7.10StatusaffectedConstraints-
- Version 7.7.10.1StatusaffectedConstraints-
- Version 7.7.11StatusaffectedConstraints-
- Version 7.7.12StatusaffectedConstraints-
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Cisco | Cisco Secure Firewall Management Center (FMC) | n/a |
|
- 7.0.0
- 7.0.0.1
- 7.0.1
- 7.0.1.1
- 7.0.2
- 7.0.2.1
- 7.0.3
- 7.0.4
- 7.0.5
- 7.0.6
- 7.0.6.1
- 7.0.6.2
- 7.0.6.3
- 7.0.7
- 7.0.8
- 7.0.8.1
- 7.0.9
- 7.1.0
- 7.1.0.1
- 7.1.0.2
- 7.1.0.3
- 7.2.0
- 7.2.0.1
- 7.2.1
- 7.2.2
- 7.2.3
- 7.2.3.1
- 7.2.4
- 7.2.4.1
- 7.2.5
- 7.2.5.1
- 7.2.5.2
- 7.2.6
- 7.2.7
- 7.2.8
- 7.2.8.1
- 7.2.9
- 7.2.10
- 7.2.10.1
- 7.2.10.2
- 7.2.11
- 7.3.0
- 7.3.1
- 7.3.1.1
- 7.3.1.2
- 7.4.0
- 7.4.1
- 7.4.1.1
- 7.4.2
- 7.4.2.1
- 7.4.2.2
- 7.4.2.3
- 7.4.2.4
- 7.4.3
- 7.4.4
- 7.4.5
- 7.4.6
- 7.4.7
- 7.6.0
- 7.6.1
- 7.6.2
- 7.6.2.1
- 7.6.3
- 7.6.4
- 7.6.5
- 7.7.0
- 7.7.10
- 7.7.10.1
- 7.7.11
- 7.7.12
- 10.0.0
- 10.0.1
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
No CVSS v3.0 score for this CVE.
No CVSS v2.0 score for this CVE.
Date Added
Sep 9, 2026
Patch Due
Sep 12, 2026
Required Action
Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.
CISA SSVC (Vulnrichment)
Stakeholder-Specific Vulnerability Categorization from CISA ADP.
Exploitation
ActiveAutomatable
YesTechnical Impact
TotalDecision
n/aAssessed Sep 10, 2026 · SSVC 2.0.3
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
Mar–Oct 2026- EPSS v4
- EPSS v5
Percentile over time
- EPSS v4
- EPSS v5
Table of values (15 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 88.18% (0.88180) | 99.77th | v5 (v2026.06.15) |
| Sep 11, 2026 | 75.75% (0.75752) | 99.49th | v5 (v2026.06.15) |
| Sep 10, 2026 | 74.70% (0.74697) | 99.47th | v5 (v2026.06.15) |
| Aug 27, 2026 | 35.95% (0.35946) | 98.35th | v5 (v2026.06.15) |
| Aug 24, 2026 | 32.87% (0.32870) | 98.22th | v5 (v2026.06.15) |
| Jul 31, 2026 | 37.67% (0.37671) | 98.39th | v5 (v2026.06.15) |
| Jul 9, 2026 | 38.70% (0.38700) | 98.40th | v5 (v2026.06.15) |
| Jun 15, 2026 | 33.90% (0.33898) | 98.17th | v5 (v2026.06.15) |
| May 6, 2026 | 11.83% (0.11828) | 93.76th | v4 (v2025.03.14) |
| May 2, 2026 | 13.58% (0.13580) | 94.26th | v4 (v2025.03.14) |
| Apr 30, 2026 | 17.39% (0.17390) | 95.09th | v4 (v2025.03.14) |
| Apr 28, 2026 | 18.84% (0.18844) | 95.32th | v4 (v2025.03.14) |
| Apr 21, 2026 | 21.02% (0.21023) | 95.65th | v4 (v2025.03.14) |
| Apr 14, 2026 | 11.08% (0.11082) | 93.46th | v4 (v2025.03.14) |
| Mar 5, 2026 | 0.18% (0.00185) | 40.03th | v4 (v2025.03.14) |
References (4)
- http://seclists.org/fulldisclosure/2026/Aug/80 ExploitMailing ListThird Party Advisory
- https://blog.talosintelligence.com/fmc-ongoing-exploitation/ third-party-advisoryExploitThird Party Advisory
- https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-onprem-fmc-authbypass-5JPp45V2 Vendor Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-20079 government-resourceUS Government Resource
| Link | Providers | Tags |
|---|---|---|
| http://seclists.org/fulldisclosure/2026/Aug/80 | ExploitMailing ListThird Party Advisory | |
| https://blog.talosintelligence.com/fmc-ongoing-exploitation/ | third-party-advisoryExploitThird Party Advisory | |
| https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-onprem-fmc-authbypass-5JPp45V2 | Vendor Advisory | |
| https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-20079 | government-resourceUS Government Resource |
Change history (0)
No recorded changes yet.