What is the CVSS score of CVE-2021-23338?

CVE-2021-23338 has a CVSS 3.1 base score of 7.2 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 3.6%.

Is there a public PoC exploit available for CVE-2021-23338?

Yes, a public proof-of-concept exploit is available for CVE-2021-23338. Prioritise patching immediately. EPSS: 3.6%.

Is there a patch available for CVE-2021-23338?

Yes, a patch is available for CVE-2021-23338. Update the affected software to the latest version immediately.

Qlib CVE-2021-23338

HIGH

Deserialization of Untrusted Data (CWE-502)

2021-02-15 report@snyk.io

Deserialization Qlib

7.2

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

7.2 HIGH

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

High

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

CVE Published

Feb 15, 2021 - 16:15 nvd

HIGH 7.2

DescriptionNVD

This affects all versions of package qlib. The workflow function in cli part of qlib was using an unsafe YAML load function.

AnalysisAI

This affects all versions of package qlib. Rated high severity (CVSS 7.2), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available and 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. This affects all versions of package qlib. The workflow function in cli part of qlib was using an unsafe YAML load function. Affected products include: Microsoft Qlib.

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.