What is the CVSS score of CVE-2021-22777?

CVE-2021-22777 has a CVSS 3.1 base score of 7.8 (High). CVSS vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H. EPSS exploitation probability: 0.9%.

Sosafe Configurable CVE-2021-22777

HIGH

Deserialization of Untrusted Data (CWE-502)

2021-07-21 cybersecurity@se.com

Deserialization RCE Sosafe Configurable

7.8

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

7.8 HIGH

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

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

Attack Vector

Local

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

CVE Published

Jul 21, 2021 - 15:15 nvd

HIGH 7.8

DescriptionNVD

A CWE-502: Deserialization of Untrusted Data vulnerability exists that could cause code execution by opening a malicious project file.

AnalysisAI

A CWE-502: Deserialization of Untrusted Data vulnerability exists that could cause code execution by opening a malicious project file. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. No vendor patch available.

Technical ContextAI

This vulnerability is classified as Deserialization of Untrusted Data (CWE-502), which allows attackers to execute arbitrary code through malicious serialized objects. A CWE-502: Deserialization of Untrusted Data vulnerability exists that could cause code execution by opening a malicious project file. Affected products include: Schneider-Electric Sosafe Configurable.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Avoid deserializing untrusted data. Use safe serialization formats (JSON). Implement integrity checks and type allowlists.