CVE-2023-20048
A public proof of concept exists; no exploitation attested.
- Published2023-11-01
- WeaknessCWE-269 · CWE-863
Am I affected?
Debian, Ubuntu or Red Hat sometimes backport a fix without changing the upstream version number: such a version reads « to verify », never « affected ».With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.
Description
A vulnerability in the web services interface of Cisco Firepower Management Center (FMC) Software could allow an authenticated, remote attacker to execute certain unauthorized configuration commands on a Firepower Threat Defense (FTD) device that is managed by the FMC Software. This vulnerability is due to insufficient authorization of configuration commands that are sent through the web service interface. An attacker could exploit this vulnerability by authenticating to the FMC web services interface and sending a crafted HTTP request to an affected device. A successful exploit could allow the attacker to execute certain configuration commands on the targeted FTD device. To successfully exploit this vulnerability, an attacker would need valid credentials on the FMC Software.
Timeline
dates in UTC- 2023-11-0118:15CVE publishedNVD
- 2026-10-2319:23First public proof of conceptPoC-in-GitHub
- 2026-10-2319:23EPSS crossed 10 %FIRST EPSS
Observed activity
isMalicious corpus · updated 2026-10-23 21:37 UTCBlock these indicators
- Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2023-20048?format=txt
- CSV export: https://api.ismalicious.com/edl/cve/CVE-2023-20048?format=csv
- TAXII collection of exploited CVEs
- The EDL and CSV take an API key on the Pro plan.
Versions per branch
NVD| Branch | Affected | Fixed in | Source |
|---|---|---|---|
| 6.2 | ≥ 6.2.3, ≤ 6.2.3.18 | no fix published | NVD |
| 6.4 | ≥ 6.4.0, ≤ 6.4.0.16 | no fix published | NVD |
| 6.6 | ≥ 6.6.0, ≤ 6.6.7.1 | no fix published | NVD |
| 6.7 | ≥ 6.7.0, ≤ 6.7.0.3 | no fix published | NVD |
| 7.0 | ≥ 7.0.0, ≤ 7.0.5 | no fix published | NVD |
| 7.1 | ≥ 7.1.0, ≤ 7.1.0.3 | no fix published | NVD |
| 7.2 | ≥ 7.2.0, ≤ 7.2.3.1 | no fix published | NVD |
| 7.3 | ≥ 7.3.0, ≤ 7.3.1.1 | no fix published | NVD |
as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.
Fix
Advisories and patches
- sec.cloudapps.cisco.comVendor Advisory
Detection
read 2026-10-23 19:23 UTC- Nuclei template
- none so far ProjectDiscovery
- Exploit-DB
- no entry Exploit-DB
- Proof-of-concept repositories
- 2 repositories, unverified0zer0d4y/FuegoTestoguzhanozuzun301/cisco-rv-rce-poc PoC-in-GitHub
Sources
- CISA-ADPSSVC decisionnone2023-11-15
- OpenCVESSVC decisionnone—
- CNACVSS 3.19.9read 2026-10-23
- NVDCVSS 3.19.9read 2026-10-23
- CNAweakness (CWE)CWE-269read 2026-10-23
- NVDweakness (CWE)CWE-863read 2026-10-23
- FIRST EPSSEPSS score15.8 %read 2026-10-23
- PoC-in-GitHubproof of concept2read 2026-10-23
Technical details
- CVSS v3 Vector
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
- Published
- 2023-11-01
- Last Modified
- 2026-06-17
- NVD status
- Modified
Frequently asked questions
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