What is the CVSS score of CVE-2022-31106?

CVE-2022-31106 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: 1.0%.

Is there a public PoC exploit available for CVE-2022-31106?

Yes, a public proof-of-concept exploit is available for CVE-2022-31106. Prioritise patching immediately. EPSS: 1.0%.

Is there a patch available for CVE-2022-31106?

Yes, a patch is available for CVE-2022-31106. Update the affected software to the latest version immediately.

Underscore Deep CVE-2022-31106

CRITICAL

Improperly Controlled Modification of Dynamically-Determined Object Attributes (CWE-915)

2022-06-28 security-advisories@github.com

Information Disclosure Underscore Deep

9.8

CVSS 3.1 · NVD

View

Vulnerability Assessment

Weakness	CWE CWE-915 OWASP Top 10:2025 A08:2025 - Software or Data Integrity Failures ASVS 5.0 V4 - API and Web Service Object attribute protection
Impact	CVSS score of 9.8 (CRITICAL). Attack characteristics: network attack vector, low complexity, no privileges required, no user interaction not required. Public proof-of-concept exploit code is available.
Exploit ScenarioDerived	This vulnerability can be exploited remotely over the network. Successful exploitation could compromise the critical-severity affected system.

Act Now Prioritize within 24-48h. Why: CRITICAL severity + public POC available.

Patch available 1.0% exploitation probability (EPSS)

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AnalysisAI

Underscore.deep is a collection of Underscore mixins that operate on nested objects. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.

Affects your stack

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Technical ContextAI · show details

This vulnerability is classified under CWE-915. Underscore.deep is a collection of Underscore mixins that operate on nested objects. Versions of underscore.deep prior to version 0.5.3 are vulnerable to a prototype pollution vulnerability. An attacker can craft a malicious payload and pass it to deepFromFlat, which would pollute any future Objects created. Any users that have deepFromFlat or deepPick (due to its dependency on deepFromFlat) in their code should upgrade to version 0.5.3 as soon as possible. Users unable to upgrade may mitigate this issue by modifying deepFromFlat to prevent specific keywords which will prevent this from happening. Affected products include: Clever Underscore.Deep. Version information: version 0.5.3.

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Exploit and PoC references, threat intelligence from 22 sources

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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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

DescriptionNVD

Underscore.deep is a collection of Underscore mixins that operate on nested objects. Versions of underscore.deep prior to version 0.5.3 are vulnerable to a prototype pollution vulnerability. An attacker can craft a malicious payload and pass it to deepFromFlat, which would pollute any future Objects created. Any users that have deepFromFlat or deepPick (due to its dependency on deepFromFlat) in their code should upgrade to version 0.5.3 as soon as possible. Users unable to upgrade may mitigate this issue by modifying deepFromFlat to prevent specific keywords which will prevent this from happening.

Threat Intelligence Overview

EPSS Score

1.0%

Top 42% exploitable

Exploit

POC

Public exploit code exists

Data Quality

3 sources

Confidence: Low

NVD

CVE.org

EPSS

GitHub

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue

Severity CRITICAL

CISA KEV No

Public POC Yes

EPSS 1.0%

Patch available Yes

Active threat No

Deciding rule

CRITICAL severity + public POC available

What every action level means

Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.

Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.

This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.

This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.

Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived

Scheduled

Exploitation· derived

Poc

System Exposure· derived

Open

Automatable· derived

Yes

Human Impact· derived

Medium

Priority Score

Low Medium High Critical

KEV: 0

EPSS: +1

CVSS: +49

PoC: +20

Weaponized: 0

Threat intel: 0

Gov advisory: 0

Attack Technique

Information Disclosure MEDIUM

Information disclosure occurs when an application unintentionally exposes sensitive data that aids attackers in reconnaissance or directly compromises security.