Security 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 26th percentile
Risk Priority 55 floored blend · peak EPSS

CVSS and EPSS are reproduced from their sources (NVD, FIRST EPSS). Risk Priority is our own derived reading, not an NVD score.

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 LSA Secrets (T1003.004); ranked at the 26th 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

T1003.004 LSA Secrets Credential Access
Adversaries with SYSTEM access to a host may attempt to access Local Security Authority (LSA) secrets, which can contain a variety of different credential materials, such as credentials for service accounts.
attack.mitre.org →
T1012 Query Registry Discovery
Adversaries may interact with the Windows Registry to gather information about the system, configuration, and installed software.
attack.mitre.org →
T1016 System Network Configuration Discovery Discovery
Adversaries may look for details about the network configuration and settings, such as IP and/or MAC addresses, of systems they access or through information discovery of remote systems.
attack.mitre.org →
T1021 Remote Services Lateral Movement
Adversaries may use [Valid Accounts](https://attack.
attack.mitre.org →
T1021.001 Remote Desktop Protocol Lateral Movement
Adversaries may use [Valid Accounts](https://attack.
attack.mitre.org →
T1021.006 Windows Remote Management Lateral Movement
Adversaries may use [Valid Accounts](https://attack.
attack.mitre.org →
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

CVE-2025-20168Shared CWE-86
CVE-2023-22840Shared CWE-86
CVE-2025-66606Shared CWE-86
CVE-2024-10941Shared CWE-86
CVE-2025-20166Shared CWE-86
CVE-2025-20167Shared CWE-86
CVE-2026-28417Shared CWE-86
CVE-2023-31126Shared CWE-86
CVE-2026-20330Shared CWE-707
CVE-2026-4249Shared CWE-707

Affected Assets

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

Mitigating Controls

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 partial match
blocks

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.5.22 Monitoring, review and change management of supplier services partial match
removes
A.7.9 Security of assets off-premises partial match
removes
A.8.19 Installation of software on operational systems partial match
removes
A.8.25 Secure development life cycle partial match
blocks

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
blocks

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
blocks

A.8.27 mandates security-by-design principles (e.g. distrust external input, data validation/sanitization, defense-in-depth, secure architecture reviews) that reach a minority slice of improper neutralization cases but leave most instances (implementation bugs, incomplete coverage of parsers/protocols, post-design defects) unaddressed.

Hardening callouts derived

DISA STIG baselines are authored against specific weaknesses. Where this CVE cites a broad weakness class, the mapping is not asserted at that abstraction (owner ruling, 2026-09-25: grade only at Base and below), so no rule is shown here rather than a rule shown against the wrong grain.

  • No fine-grained STIG row for CWE-707, a pillar-level weakness, and none of its children carries one either.

References