What is the CVSS score of CVE-2024-8923?

CVE-2024-8923 has a CVSS 4.0 base score of 9.3 (Critical). CVSS vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N. EPSS exploitation probability: 1.1%.

Servicenow CVE-2024-8923

CRITICAL

Code Injection (CWE-94)

2024-10-29 psirt@servicenow.com

RCE Code Injection Servicenow

9.3

CVSS 4.0 · Vendor: servicenow

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Vulnerability Assessment

Weakness	CWE CWE-94 OWASP Top 10:2025 A05:2025 - Injection ASVS 5.0 V1 - Encoding and Sanitization Code injection prevention, sandbox exec MITRE ATT&CK 2 techniques across 2 tactics: Execution, Initial Access The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. Sign in to read
Impact	CVSS score of 9.3 (CRITICAL). Attack characteristics: network attack vector, low complexity, no privileges required, no user interaction not required.
Exploit ScenarioDerived	A remote attacker could inject and execute arbitrary code within the application by sending crafted requests to the affected application. No authentication is required to exploit this vulnerability.

Act Now Prioritize within 24-48h. Why: CRITICAL severity.

No patch listed yet 1.1% exploitation probability (EPSS)

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AnalysisAI

ServiceNow has addressed an input validation vulnerability that was identified in the Now Platform. Rated critical severity (CVSS 9.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Never evaluate user-controlled input as code. Use sandboxing, disable dangerous functions, apply strict input validation.

Affects your stack

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Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

This vulnerability is classified as Code Injection (CWE-94), which allows attackers to inject and execute arbitrary code within the application. ServiceNow has addressed an input validation vulnerability that was identified in the Now Platform. This vulnerability could enable an unauthenticated user to remotely execute code within the context of the Now Platform. ServiceNow deployed an update to hosted instances and ServiceNow provided the update to our partners and self-hosted customers. Further, the vulnerability is addressed in the listed patches and hot fixes. Affected products include: Servicenow.

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Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

Vendor (servicenow) PRIMARY 9.3 CRITICAL

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Primary rating from Vendor (servicenow) · only source for this CVE.

CVSS VectorVendor: servicenow

Attack Vector

Network

Attack Complexity

Low

Attack Requirements

None

Privileges Required

None

User Interaction

None

Vulnerable system: Confidentiality

High

Vulnerable system: Integrity

High

Vulnerable system: Availability

High

Subsequent system: Confidentiality

None

Subsequent system: Integrity

None

Subsequent system: Availability

None

DescriptionCVE.org

ServiceNow has addressed an input validation vulnerability that was identified in the Now Platform. This vulnerability could enable an unauthenticated user to remotely execute code within the context of the Now Platform. ServiceNow deployed an update to hosted instances and ServiceNow provided the update to our partners and self-hosted customers. Further, the vulnerability is addressed in the listed patches and hot fixes.

Threat Intelligence Overview

EPSS Score

1.1%

Top 38% exploitable

Data Quality

2 sources

Confidence: Low

NVD

CVE.org

EPSS

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 No

EPSS 1.1%

Patch available No

Active threat No

Deciding rule

CRITICAL severity

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

None

System Exposure· derived

Open

Automatable· derived

Yes

Human Impact· derived

Medium

Priority Score

Low Medium High Critical

KEV: 0

EPSS: +1

CVSS: +46

PoC: 0

Weaponized: 0

Threat intel: 0

Gov advisory: 0

Attack Technique

Code Injection CRITICAL

Code injection occurs when an application accepts user input and passes it directly into a language interpreter or evaluator without proper sanitization.

Remote Code Execution CRITICAL

Remote Code Execution represents the critical moment when an attacker successfully runs arbitrary code on a target system without physical access.

Affected Products (CPE)CVE.org

cpe:2.3:a:servicenow:servicenow:xanadu:early_availability:*:*:*:*:*:*

cpe:2.3:a:servicenow:servicenow:xanadu:early_availability_hotfix_1:*:*:*:*:*:*

cpe:2.3:a:servicenow:servicenow:washington_dc:-:*:*:*:*:*:*

cpe:2.3:a:servicenow:servicenow:washington_dc:early_availability:*:*:*:*:*:*

cpe:2.3:a:servicenow:servicenow:washington_dc:early_availability_hotfix_1:*:*:*:*:*:*

cpe:2.3:a:servicenow:servicenow:washington_dc:patch_1:*:*:*:*:*:*

cpe:2.3:a:servicenow:servicenow:washington_dc:patch_1_hotfix_1:*:*:*:*:*:*

cpe:2.3:a:servicenow:servicenow:washington_dc:patch_1_hotfix_2:*:*:*:*:*:*

cpe:2.3:a:servicenow:servicenow:washington_dc:patch_1_hotfix_2a:*:*:*:*:*:*

cpe:2.3:a:servicenow:servicenow:washington_dc:patch_1_hotfix_2b:*:*:*:*:*:*

cpe:2.3:a:servicenow:servicenow:washington_dc:patch_1_hotfix_3b:*:*:*:*:*:*

cpe:2.3:a:servicenow:servicenow:washington_dc:patch_2:*:*:*:*:*:*

cpe:2.3:a:servicenow:servicenow:washington_dc:patch_2_hotfix_1:*:*:*:*:*:*

cpe:2.3:a:servicenow:servicenow:washington_dc:patch_2_hotfix_2:*:*:*:*:*:*

cpe:2.3:a:servicenow:servicenow:washington_dc:patch_3:*:*:*:*:*:*

cpe:2.3:a:servicenow:servicenow:washington_dc:patch_3_hotfix_1:*:*:*:*:*:*

cpe:2.3:a:servicenow:servicenow:washington_dc:patch_3_hotfix_2:*:*:*:*:*:*

cpe:2.3:a:servicenow:servicenow:washington_dc:patch_3_hotfix_3:*:*:*:*:*:*

cpe:2.3:a:servicenow:servicenow:washington_dc:patch_4:*:*:*:*:*:*

cpe:2.3:a:servicenow:servicenow:washington_dc:patch_4_hotfix_1:*:*:*:*:*:*

+ 49 more

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References

Advisories & patches

ADVISORY https://support.servicenow.com/kb?id=kb_article_view&sysparm_article=KB1706070

Search Externally

GitHub PoC

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