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CVE-2021-35049

30
FAUCET Score

CVE-2021-35049 is a critical command injection vulnerability affecting Fidelis Network and Deception CommandPost versions prior to 9.3.7 and version 9.4. An authenticated attacker can exploit this flaw via a specially crafted HTTP request to execute arbitrary system commands on the CommandPost, with results returned in the HTTP response. This vulnerability carries a high CVSS score of 8.8, indicating a network-based attack with low complexity and high impact on confidentiality, integrity, and availability. While there is no known active exploitation or public exploit code (Metasploit, Nuclei, ExploitDB), the vulnerability has garnered significant community discussion, with 10 mentions, suggesting awareness among security researchers.

Impacted Technologies

VendorProductVersion(s)CPE
< 9.3.7CPE matchmatch criteria
cpe:2.3:a:fidelissecurity:deception:*:*:*:*:*:*:*:*
9.4CPE matchmatch criteria
cpe:2.3:a:fidelissecurity:deception:9.4:*:*:*:*:*:*:*
< 9.3.7CPE matchmatch criteria
cpe:2.3:a:fidelissecurity:network:*:*:*:*:*:*:*:*
9.4CPE matchmatch criteria
cpe:2.3:a:fidelissecurity:network:9.4:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.9CRITICAL

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.1
Impact Score
6.0
CvssVersion
3.1

Exploit Intelligence

EPSS Score
4.61%
Probability of exploitation in next 30 days
EPSS Percentile
90.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0461 is in the 90th percentile among its peer group of 17,844 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.3 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

support.fidelissecurity.com / hc/en-us/categories/360001842694-Advisories-News-and-Policies
Permissions RequiredVendor Advisory
securifera.com / blog/2021/06/24/operation-eagle-eye
ExploitThird Party Advisory