CVE-2024-43504
Published: 08 October 2024
Summary
CVE-2024-43504 is a high-severity Use After Free (CWE-416) vulnerability in Microsoft Office Long Term Servicing Channel. Its CVSS base score is 7.8 (High).
Operationally, ranked in the top 5.8% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
Deeper analysis
Microsoft Excel contains a remote code execution vulnerability identified as CVE-2024-43504 and associated with CWE-416. The flaw affects the application when processing certain files and carries a CVSS 3.1 score of 7.8 reflecting local attack vector, low complexity, no required privileges, and required user interaction.
An unauthenticated attacker can exploit the issue by supplying a malicious Excel document that a victim opens locally, resulting in arbitrary code execution that compromises confidentiality, integrity, and availability on the target system.
The sole reference points to the Microsoft Security Response Center advisory, which is expected to detail available patches and mitigation steps for supported Excel versions. The EPSS score has remained flat at 0.1288 with no observed upward trajectory since disclosure.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2024-40760
Vulnerability details
Microsoft Excel Remote Code Execution Vulnerability
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
Mitigating Controls
Likely Mitigating Controls AI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
Use-after-free exploits that achieve arbitrary code execution are blocked or significantly hardened by non-executable pages and ASLR.