CVE-2021-35049

CRITICALNVD 9.99.9—
EchelonGraph scoreMEDIUM confidence

This critical-severity CVE scores 9.9 under NVD CVSS v3. EPSS exploit probability: 4.6%, top 9% of all CVEs by exploit prediction. GitHub Security Advisory enrichment pending alignment with NVD CVSS.

Triggered by: NVD CVSS baseline
Sources: epss, ghsa, nvd
9.9
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 5%CVSS: 9.9Exploit: NoneExposed: 0

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

Vulnerability in Fidelis Network and Deception CommandPost enables authenticated command injection through the web interface. The vulnerability could allow a specially crafted HTTP request to execute system commands on the CommandPost and return results in an HTTP response in an authenticated session. The vulnerability is present in Fidelis Network and Deception versions prior to 9.3.7 and in version 9.4. Patches and updates are available to address this vulnerability.

CVSS v3
9.9
EG Score
9.9(medium)
EG Risk
51(Track)
EG Risk 51/100SSVC: 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%
Exploitation5% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS
90.7%
KEV
Not listed

Published

June 25, 2021

Last Modified

November 21, 2024

Advisory Details (1)

Auto-updated Jul 21, 2026
No patch confirmed yet.
generic

Operation Eagle Eye – Securifera

https://www.securifera.com/blog/2021/06/24/operation-eagle-eye/

Weakness Classification(3)

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

Data Freshness Timeline

(refreshed 15× in last 7d / 42× 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.

  1. 2026-07-24 14:15 UTCEPSS rescore
  2. 2026-07-23 14:16 UTCEPSS rescore
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  4. 2026-07-23 02:01 UTCEG score recompute
  5. 2026-07-22 22:48 UTCEG score recompute▲ 1.10
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  1. 2026-07-09 19:07 UTCEPSS rescore
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  64. 2026-05-26 14:27 UTCEG score recompute
  65. 2026-05-26 14:27 UTCGHSA enrichment
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  69. 2026-05-26 07:17 UTCEPSS rescore
  70. 2026-05-25 09:46 UTCOSV refresh

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Frequently asked(5)

What is CVE-2021-35049?
CVE-2021-35049 is a critical vulnerability published on June 25, 2021. Vulnerability in Fidelis Network and Deception CommandPost enables authenticated command injection through the web interface. The vulnerability could allow a specially crafted HTTP request to execute system commands on the CommandPost and return results in an HTTP response in an authenticated…
When was CVE-2021-35049 disclosed?
CVE-2021-35049 was first published in the National Vulnerability Database on June 25, 2021, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2021-35049 actively exploited?
CVE-2021-35049 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 90.7% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2021-35049?
CVE-2021-35049 has a CVSS v3 base score of 9.9 (NVD).
How do I remediate CVE-2021-35049?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2021-35049, 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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