CVE-2023-20048

CRITICALNVD 9.99.9—
EchelonGraph scoreMEDIUM confidence

Score 9.9 from GitHub Security Advisory (severity: CRITICAL) published 2023-11-01. NVD baseline CVSS 9.9; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Elevated
9.9EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 16%CVSS: 9.9Exploit: Elevated riskExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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.

CVSS v3
9.9
EG Score
9.9(medium)
EG Risk
61(Track)
EG Risk 61/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity99% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
16%
EPSS %ILE
97%
KEV
Not listed

Published

November 1, 2023

Last Modified

November 26, 2024

Advisory Details (1)

Auto-updated Jul 27, 2026
No patch confirmed yet.
generic

Cisco Firepower Management Center Software Command Injection Vulnerability

https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-fmc-cmd-inj-29MP49hN

Weakness Classification(2)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 11× in last 7d / 46× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 105 total refreshes for this CVE.

  1. 2026-07-26 14:52 UTCEPSS rescore
  2. 2026-07-26 14:52 UTCEPSS rescore
  3. 2026-07-25 14:16 UTCEPSS rescore
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  8. 2026-07-23 02:18 UTCEG score recompute
  9. 2026-07-22 23:05 UTCEG score recompute
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  1. 2026-07-13 06:11 UTCEPSS rescore
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  23. 2026-06-25 13:48 UTCEPSS rescore
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  27. 2026-06-23 21:31 UTCEPSS rescore
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  31. 2026-06-19 19:24 UTCEPSS rescore
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  45. 2026-06-10 22:17 UTCEPSS rescore
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  48. 2026-06-08 14:15 UTCEPSS rescore
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  50. 2026-06-07 15:23 UTCEPSS rescore
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  52. 2026-06-05 22:46 UTCEPSS rescore
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  73. 2026-05-27 13:39 UTCEPSS rescore
  74. 2026-05-26 13:43 UTCEPSS rescore
  75. 2026-05-26 13:43 UTCEPSS rescore

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Frequently asked(5)

What is CVE-2023-20048?
CVE-2023-20048 is a critical vulnerability published on November 1, 2023. 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…
When was CVE-2023-20048 disclosed?
CVE-2023-20048 was first published in the National Vulnerability Database on November 1, 2023, with the most recent update on November 26, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2023-20048 actively exploited?
CVE-2023-20048 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 16% probability of exploitation in the next 30 days, which ranks it in the top 3.5% of all scored CVEs.
What is the CVSS score of CVE-2023-20048?
CVE-2023-20048 has a CVSS v3 base score of 9.9 (NVD).
How do I remediate CVE-2023-20048?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-20048, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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