What is the CVSS score of CVE-2021-22855?

CVE-2021-22855 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: 2.0%.

Hr Portal CVE-2021-22855

CRITICAL

Deserialization of Untrusted Data (CWE-502)

2021-02-17 twcert@cert.org.tw

Deserialization Hr Portal

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

Feb 17, 2021 - 14:15 nvd

CRITICAL 9.8

DescriptionNVD

The specific function of HR Portal of Soar Cloud System accepts any type of object to be deserialized. Attackers can send malicious serialized objects to execute arbitrary commands.

AnalysisAI

The specific function of HR Portal of Soar Cloud System accepts any type of object to be deserialized. 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 as Deserialization of Untrusted Data (CWE-502), which allows attackers to execute arbitrary code through malicious serialized objects. The specific function of HR Portal of Soar Cloud System accepts any type of object to be deserialized. Attackers can send malicious serialized objects to execute arbitrary commands. Affected products include: Hr Portal Project Hr Portal.

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.