Cyber Resilience

CVE-2024-23441

Memory Safety in Anti-Virus Vba32 3.36.0

Public PoCMemory Safety
Published
29 January 2024
Modified
17 June 2026
Patch / advisory
View advisory
CVSS Score v3.1 5.5
Click a component to see what it means
Raw vectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS Score 0.0024 15th percentile
Risk Priority 35 floored blend · peak EPSS

Summary

CVE-2024-23441 is a medium-severity NULL Pointer Dereference (CWE-476) vulnerability in Anti-Virus Vba32. Its CVSS base score is 5.5 (Medium).

Operationally, exploitation aligns with the MITRE ATT&CK technique Application or System Exploitation (T1499.004); ranked at the 15th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

OWASP Top 10 for Web (2025)

A10:2025 Mishandling of Exceptional Conditions

EU & UK References

Vulnerability Data

Vba32 Antivirus v3.36.0 is vulnerable to a Denial of Service vulnerability by triggering the 0x2220A7 IOCTL code of the Vba32m64.sys driver.

CWE(s)
CWE-476

Related Threats

MITRE ATT&CK Enterprise TechniquesAI

T1499.004 Application or System Exploitation Impact
Adversaries may exploit software vulnerabilities that can cause an application or system to crash and deny availability to users.
attack.mitre.org →
T1685 Disable or Modify Tools Defense Impairment
Adversaries may disable, degrade, or tamper with security tools or applications (e.
attack.mitre.org →
Why these techniques?

The vulnerability allows local low-privileged attackers to trigger a BSOD via IOCTL in the antivirus kernel driver, enabling endpoint DoS through system exploitation (T1499.004) and impairing/disabling security tools (T1562.001).

CVEs Like This One

CVE-2025-69624Same product: Microsoft Windows
CVE-2024-1443Same product: Microsoft Windows
CVE-2025-66769Same product: Microsoft Windows
CVE-2026-23565Same product: Microsoft Windows
CVE-2024-23439Same product: Anti-Virus Vba32
CVE-2026-21288Same product: Microsoft Windows
CVE-2026-8035Same product: Microsoft Windows
CVE-2026-3776Same product: Microsoft Windows
CVE-2026-32071Same vendor: Microsoft
CVE-2026-42903Same vendor: Microsoft

Affected Assets

anti-virus
vba32
3.36.0

Mitigating Controls

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 (static analysis, code review, safe coding standards) directly prevent NULL dereference bugs during development.

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.8.29 Security testing in development and acceptance mostly match
detects

Security testing can detect NULL dereference defects before release.

A.8.25 Secure development life cycle partial match
prevents

Secure SDLC mandates defensive coding practices that can prevent NULL dereferences.

A.8.26 Application security requirements partial match
prevents

Application security requirements can specify input validation and pointer-safety rules.

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

Secure architecture principles encourage defensive design that avoids unsafe pointer use.

A.8.28 Secure coding partial match
prevents

Secure coding standards directly require NULL-pointer checks and safe dereference patterns.

References