CVE-2021-35049

CVE-2021-35049 is a critical-severity vulnerability in Fidelissecurity Deception with a CVSS 3.x base score of 9.9. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-78.

Key facts

Description

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.

Frequently asked questions

What is CVE-2021-35049?
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.
How severe is CVE-2021-35049?
CVE-2021-35049 has a CVSS 3.x base score of 9.9, rated critical severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2021-35049 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (91st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-35049?
CVE-2021-35049 primarily affects Fidelissecurity Deception. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2021-35049?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2021-35049 published?
CVE-2021-35049 was published on 2021-06-25 and last updated on 2026-06-17.

References

Affected products (4)

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