What is the CVSS score of CVE-2021-27730?

CVE-2021-27730 has a CVSS 3.1 base score of 9.8 (Critical). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 1.4%.

Fta CVE-2021-27730

CRITICAL

Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection') (CWE-74)

2021-03-02 cve@mitre.org

Code Injection Fta

9.8

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

9.8 CRITICAL

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

CVE Published

Mar 02, 2021 - 02:15 nvd

CRITICAL 9.8

DescriptionNVD

Accellion FTA 9_12_432 and earlier is affected by argument injection via a crafted POST request to an admin endpoint. The fixed version is FTA_9_12_444 and later.

AnalysisAI

Accellion FTA 9_12_432 and earlier is affected by argument injection via a crafted POST request to an admin endpoint. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Technical ContextAI

This vulnerability is classified under CWE-74. Accellion FTA 9_12_432 and earlier is affected by argument injection via a crafted POST request to an admin endpoint. The fixed version is FTA_9_12_444 and later. Affected products include: Accellion Fta.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.