GCVE-1988-2026-0302
Vulnerability from gna-1988 – Published: 2026-09-08 11:40 – Updated: 2026-09-09 10:09
VLAI
EPSS
VEX
Title
CVE-2026-20079 - Cisco Secure Firewall Management Center Authentication Bypass to Root RCE
Summary
CVE-2026-20079 - Cisco Secure Firewall Management Center Authentication
Bypass to Root RCE
Product:
Cisco Secure Firewall Management Center
Tested version:
10.0.1-1
CVE:
CVE-2026-20079
PoC author:
Arian Eidizadeh (CyberAuth)
Public PoC:
https://github.com/CyberAuth/CVE-2026-20079
Technical write-up:
https://banks.tools/writeups/cve-2026-20079-cisco-secure-fmc
The publicly documented authentication-bypass-to-root-RCE chain was
independently reproduced against Cisco Secure FMC 10.0.1-1 with confirmed
uid=0(root) execution.
The published Python implementation provides separate fingerprint,
authentication-bypass check, bounded root-proof, exploit, verification, and
cleanup functionality.
This work does not claim discovery of CVE-2026-20079 or independent
discovery of the original exploit chain. The contribution is the
independent reproduction and public PoC implementation.
References:
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-onprem-fmc-authbypass-5JPp45V2
https://www.vulncheck.com/blog/cisco-fmc-auth-bypass-cve-2026-20079
https://github.com/CyberAuth/CVE-2026-20079
https://banks.tools/writeups/cve-2026-20079-cisco-secure-fmc
_______________________________________________
Sent through the Full Disclosure mailing list
https://nmap.org/mailman/listinfo/fulldisclosure
Web Archives & RSS: https://seclists.org/fulldisclosure/
Severity
No CVSS data available.
Assigner
References
8 references
Impacted products
1 product
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Cve | CVE-2026-20079 - Cisco |
Affected:
unknown
|
guessed |
Relationships
reference
GCVE-1988-2026-0302 (this record)
- related CVE-2026-20079
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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