CVE-2023-20063: Cisco Cisco Firepower Threat Defense Software and Cisco Firepower Management Center Code Injection Vulnerability
Noroxi assessment
Priority: Monitor (action score 32/100)
- The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
- Probability of exploitation in the next 30 days: 0.45% (FIRST EPSS).
- Someone with local access to the system can trigger it. Administrator privileges are required. No user action is required. No special conditions are required; it is repeatable.
- According to the record, no fixed version is available yet.
Low priority for now. Update when a fix is released; follow the vendor's advisory.
Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it
Primary sources: NVD · CVE.org · FIRST EPSS
A vulnerability in the inter-device communication mechanisms between devices that are running Cisco Firepower Threat Defense (FTD) Software and devices that are running Cisco Firepower Management (FMC) Software could allow an authenticated, local attacker to execute arbitrary commands with root permissions on the underlying operating system of an affected device. This vulnerability is due to insufficient validation of user-supplied input. An attacker could exploit this vulnerability by accessing the expert mode of an affected device and submitting specific commands to a connected system. A successful exploit could allow the attacker to execute arbitrary code in the context of an FMC device if the attacker has administrative privileges on an associated FTD device. Alternatively, a successful exploit could allow the attacker to execute arbitrary code in the context of an FTD device if the attacker has administrative privileges on an associated FMC device.
- Published
- Nov 1, 2023
- Updated
- Aug 11, 2026
- EPSS
- 0.4% · 39th percentile
- CWE
- CWE-94
Report tools
Action score
32
Monitor
Low priority for now.
- CVSS
- 32 / 40 · 8.2 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 0 / 30 · 0.4%
CISA SSVC decision
- Exploitation
- none
- Automatable
- no
- Technical impact
- total
Vulnrichment: CISA's decision-tree inputs.
CNA vs NVD score
- NVD
- 8.2
- CNA · cisco
- 8.2
- agree
The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.
Get told when this record changes
- Not in KEV: no record of exploitation in the wild
- No public exploit code on record
- No fixed version yet
If any of these changes, we'll tell you in the daily email digest.
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Noroxi analysis
What does it mean in your environment?
The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.
We use this product, ask for helpAffected systems
Is your version affected?
Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.
| Vendor | Product | CPE |
|---|---|---|
| cisco | secure firewall management center | cpe:2.3:a:cisco:secure_firewall_management_center |
| cisco | secure firewall threat defense | cpe:2.3:a:cisco:secure_firewall_threat_defense |
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- cisco secure firewall management center6.2.3 and later · up to 6.2.3.18 inclusive
- cisco secure firewall management center6.4.0 and later · up to 6.4.0.16 inclusive
- cisco secure firewall management center6.6.0 and later · up to 6.6.7.1 inclusive
- cisco secure firewall management center7.0.0 and later · up to 7.0.5 inclusive
- cisco secure firewall management center7.1.0 and later · up to 7.1.0.3 inclusive
- cisco secure firewall management center7.3.0 and later · up to 7.3.1.1 inclusive
- cisco secure firewall threat defense6.2.3 and later · up to 6.2.3.18 inclusive
- cisco secure firewall threat defense6.4.0 and later · up to 6.4.0.17 inclusive
- cisco secure firewall threat defense6.6.0 and later · up to 6.6.7.1 inclusive
- cisco secure firewall threat defense6.7.0 and later · up to 6.7.0.3 inclusive
- cisco secure firewall threat defense7.0.0 and later · up to 7.0.5 inclusive
- cisco secure firewall threat defense7.1.0 and later · up to 7.1.0.3 inclusive
- cisco secure firewall threat defense7.2.0 and later · up to 7.2.3 inclusive
Versions reported by the vendor
Affected version ranges reported by the assigning authority (cisco). Independent of NVD's CPE analysis and usually ahead of it.
Cisco Cisco Firepower Management Center
- 6.2.3.12, 6.2.3.1, 6.2.3.10, 6.2.3.8, 6.4.0.6, 6.2.3, 6.4.0.7, 6.2.3.13, 6.2.3.5, 6.4.0.4, 6.2.3.9, 6.2.3.14 … (+28)affected
Cisco Cisco Firepower Threat Defense Software
- 6.2.3.14, 6.4.0.1, 6.2.3.7, 6.2.3, 6.4.0.2, 6.2.3.9, 6.2.3.1, 6.2.3.2, 6.4.0.5, 6.2.3.10, 6.4.0, 6.4.0.3 … (+28)affected
Same product
cisco: all recordsOther highest-scoring records for the same primary product.
- CVE-2026-20079Cisco Secure Firewall Management Center Authentication Bypass Remote Code Execution VulnerabilityKEV97Now
- CVE-2026-20131Cisco Secure Firewall Management Center Software Remote Code Execution VulnerabilityKEV83Now
- CVE-2026-20316Cisco Secure Firewall Management Center Software Static Credential VulnerabilityKEV62This week
Published before and after this one in the same product
- ← EarlierCVE-2023-20206Nov 1, 2023 · Multiple vulnerabilities in the web-based management interface of Cisco Firepower Management Center (FMC) Software could allow an unauthenti24Monitor
- ← EarlierCVE-2023-20048Nov 1, 2023 · A vulnerability in the web services interface of Cisco Firepower Management Center (FMC) Software could allow an authenticated, remote attac45Plan
- Later →CVE-2023-20219Nov 1, 2023 · Multiple vulnerabilities in the web management interface of Cisco Firepower Management Center (FMC) Software could allow an authenticated, r35Monitor
Remediation
Which version to upgrade to
Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.
No fix version is recorded for this entry. Check the references for vendor advisories.
Exploit status
No known public exploit
No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.
Research context
For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.
Timeline
From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.
No dated events beyond publication.
No history yet (it accumulates with the daily EPSS job).
Patch and commit links
Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.
No commit or PR link among the references.
Credits
All researchersFinders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.
No credits in the CNA record.
Variant candidates
Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.
No nightly-computed relations.
Chain candidates
An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.
—
Bug bounty scope
No known public program.
Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).
Technical details
Attack conditions
- Someone with local access to the system can trigger it.
- Administrator privileges are required.
- No user action is required.
- No special conditions are required; it is repeatable.
If successful
- Confidentiality
- high · data can be read
- Integrity
- high · data or configuration can be modified
- Availability
- high · the service can be disrupted
Impact can extend beyond the vulnerable component (scope changes).
- Attack vector
- Local
- Attack complexity
- Low
- Privileges required
- High
- User interaction
- None
- Scope
- Changed
- Confidentiality impact
- High
- Integrity impact
- High
- Availability impact
- High
Weakness class (CWE)
CWE-94 · Improper Control of Generation of Code ('Code Injection')CVSS vector
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
nvd-primary
Attack context
MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.
Attack patterns (CAPEC)
Change log
No changes recorded on tracked fields yet. Score, KEV, exploit maturity and fix status changes appear here.
References
Vendor advisories and official records. Exploit/PoC links are deliberately left out.