What is the CVSS score of CVE-2021-4118?

CVE-2021-4118 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: 1.0%.

Is there a public PoC exploit available for CVE-2021-4118?

Yes, a public proof-of-concept exploit is available for CVE-2021-4118. Prioritise patching immediately. EPSS: 1.0%.

Is there a patch available for CVE-2021-4118?

Yes, a patch is available for CVE-2021-4118. Update the affected software to the latest version immediately.

Pytorch Lightning CVE-2021-4118

HIGH

Deserialization of Untrusted Data (CWE-502)

2021-12-23 security@huntr.dev

Deserialization Pytorch Lightning

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

Dec 23, 2021 - 18:15 nvd

HIGH 7.8

Blast Radius

ecosystem impact

† from your stack dependencies † transitive graph · vuln.today resolves 4-path depth

6 pypi packages depend on pytorch-lightning (6 direct, 0 indirect)

Ecosystem-wide dependent count for version 1.6.0.

DescriptionNVD

pytorch-lightning is vulnerable to Deserialization of Untrusted Data

AnalysisAI

pytorch-lightning is vulnerable to Deserialization of Untrusted Data. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. Public exploit code 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. pytorch-lightning is vulnerable to Deserialization of Untrusted Data Affected products include: Lightningai Pytorch Lightning.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Avoid deserializing untrusted data. Use safe serialization formats (JSON). Implement integrity checks and type allowlists.