CVE-2024-23441: CWE-476 NULL Pointer Dereference in VirusBlokAda Vba32 Antivirus
Vba32 Antivirus version 3. 36. 0 contains a denial of service vulnerability caused by a NULL pointer dereference triggered via the 0x2220A7 IOCTL code in its Vba32m64. sys driver. This flaw can cause the antivirus software to crash or become unresponsive, impacting availability. The vulnerability has a CVSS 3. 1 base score of 5. 5, indicating medium severity. No known exploits are reported in the wild, and no official patch or remediation guidance has been provided by the vendor as of the publication date.
AI Analysis
Technical Summary
CVE-2024-23441 is a medium severity denial of service vulnerability in VirusBlokAda's Vba32 Antivirus version 3.36.0. It arises from a NULL pointer dereference in the Vba32m64.sys driver when processing the 0x2220A7 IOCTL code. This vulnerability can cause the antivirus process to crash, resulting in loss of availability. The CVSS vector indicates that the attack requires local access with low complexity and low privileges, and does not impact confidentiality or integrity. No patch or official remediation has been disclosed.
Potential Impact
Successful exploitation causes a denial of service by crashing the antivirus driver, leading to potential loss of antivirus protection availability. There is no impact on confidentiality or integrity according to the CVSS vector. No known active exploitation has been reported.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, limit local access to trusted users and monitor for abnormal antivirus behavior. Avoid executing untrusted code locally that could trigger the vulnerable IOCTL.
CVE-2024-23441: CWE-476 NULL Pointer Dereference in VirusBlokAda Vba32 Antivirus
Description
Vba32 Antivirus version 3. 36. 0 contains a denial of service vulnerability caused by a NULL pointer dereference triggered via the 0x2220A7 IOCTL code in its Vba32m64. sys driver. This flaw can cause the antivirus software to crash or become unresponsive, impacting availability. The vulnerability has a CVSS 3. 1 base score of 5. 5, indicating medium severity. No known exploits are reported in the wild, and no official patch or remediation guidance has been provided by the vendor as of the publication date.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2024-23441 is a medium severity denial of service vulnerability in VirusBlokAda's Vba32 Antivirus version 3.36.0. It arises from a NULL pointer dereference in the Vba32m64.sys driver when processing the 0x2220A7 IOCTL code. This vulnerability can cause the antivirus process to crash, resulting in loss of availability. The CVSS vector indicates that the attack requires local access with low complexity and low privileges, and does not impact confidentiality or integrity. No patch or official remediation has been disclosed.
Potential Impact
Successful exploitation causes a denial of service by crashing the antivirus driver, leading to potential loss of antivirus protection availability. There is no impact on confidentiality or integrity according to the CVSS vector. No known active exploitation has been reported.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, limit local access to trusted users and monitor for abnormal antivirus behavior. Avoid executing untrusted code locally that could trigger the vulnerable IOCTL.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Fluid Attacks
- Date Reserved
- 2024-01-16T20:47:02.910Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 69e6390b19fe3cd2cd032870
Added to database: 4/20/2026, 2:32:43 PM
Last enriched: 4/20/2026, 2:46:21 PM
Last updated: 4/20/2026, 3:36:14 PM
Views: 3
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