Cyber Resilience

CVE-2024-21864

Published
16 May 2024
Modified
15 April 2026
CVSS Score v3.1 7.8
Click a component to see what it means
Raw vectorCVSS:3.1/AV:A/AC:H/PR:N/UI:R/S:C/C:L/I:H/A:H
EPSS Score 0.0034 27th percentile
Risk Priority 55 floored blend · peak EPSS

Summary

CVE-2024-21864 is a high-severity Improper Neutralization of Invalid Characters in Identifiers in Web Pages (CWE-86) vulnerability in Intel (inferred from references). Its CVSS base score is 7.8 (High).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked at the 27th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

The strongest mitigations our analysis identified map to SA-11 (Developer Testing and Evaluation) and SI-10 (Information Input Validation) — see the control section below for these in your framework.

OWASP Top 10 for Web (2025)

A05:2025 Injection

EU & UK References

Vulnerability Data

Improper neutralization in some Intel(R) Arc(TM) & Iris(R) Xe Graphics software before version 31.0.101.5081 may allow an unauthenticated user to potentially enable escalation of privilege via adjacent network access.

CWE(s)
CWE-86CWE-707

Related Threats

MITRE ATT&CK Enterprise Techniques

T1190 Exploit Public-Facing Application Initial Access
Adversaries may attempt to exploit a weakness in an Internet-facing host or system to initially access a network.
attack.mitre.org →
T1059 Command and Scripting Interpreter Execution
Adversaries may abuse command and script interpreters to execute commands, scripts, or binaries.
attack.mitre.org →
T1203 Exploitation for Client Execution Execution
Adversaries may exploit software vulnerabilities in client applications to execute code.
attack.mitre.org →
T1212 Exploitation for Credential Access Credential Access
Adversaries may exploit software vulnerabilities in an attempt to collect credentials.
attack.mitre.org →
T1659 Content Injection Initial Access
Adversaries may gain access and continuously communicate with victims by injecting malicious content into systems through online network traffic.
attack.mitre.org →
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

CVE-2026-4249Shared CWE-707
CVE-2025-66545Shared CWE-707
CVE-2024-43572Shared CWE-707
CVE-2025-26633Shared CWE-707
CVE-2025-24921Shared CWE-707
CVE-2023-46689Shared CWE-707
CVE-2025-27712Shared CWE-707
CVE-2023-42773Shared CWE-707
CVE-2023-45315Shared CWE-707
CVE-2023-6123Shared CWE-707

Affected Assets

Intel
—
inferred from references and description; NVD did not file a CPE for this CVE

Mitigating Controls

Control response

Prevent
Stop it (NIST 800-53)

—

Detect
Catch it (NIST detect / respond)

—

Harden
Shrink the surface (DISA STIG)
  • 6 hardening rules · 4 OS baselines
Validate
Prove the fix (OWASP ASVS)
  • V1.3.9

Mitigating Controls (NIST 800-53 r5) AI

SA-11 Developer Testing and Evaluation good match

Developer testing can discover missing or incorrect neutralization logic.

SI-10 Information Input Validation good match

Input validation directly enforces well-formed data and security properties before processing.

SI-15 Information Output Filtering good match

Output filtering enforces neutralization properties on data leaving the system.

Mitigating Controls (NIST CSF 2.0) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.

PR.PS-06 mostly match
prevents

Secure SDLC practices directly require proper input neutralization and validation to prevent identifier-handling flaws.

Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.

A.8.28 Secure coding mostly match
prevents

Secure coding standards directly require proper neutralization of inputs and outputs, eliminating CWE-707.

A.8.29 Security testing in development and acceptance mostly match
finds

Security testing can detect the weakness but does not itself implement the neutralization controls.

A.8.25 Secure development life cycle partial match
prevents

Secure development life cycle mandates input validation and sanitization that directly prevents improper neutralization of invalid characters in identifiers.

A.8.26 Application security requirements partial match
prevents

Application security requirements explicitly call for validation of all inputs including identifiers, mitigating this weakness.

A.8.27 Secure system architecture and engineering principles partial match
prevents

Secure architecture principles include canonicalization and safe parsing, mitigating but not fully covering neutralization issues.

Hardening callouts derived

Configuration rules from DISA STIG baselines that bear on weaknesses of the type cited by this CVE. Each rule is shown with the relationship its mapping actually records, against the CWE it was authored against. Derived via CVE→CWE over `controls_xwalks` (authoritative rows only; rows rated `none` are excluded).

Oracle Linux 9 (1 rule)
  • V-271523 OL 9 must check the GPG signature of locally installed software packages before installation. prevents CWE-707

References