CVE-2025-59243 is a use-after-free vulnerability in Microsoft Office Excel, including Microsoft 365 Apps and Office Long Term Servicing Channel, that allows for local code execution. With a CVSS score of 7.8 (High), it requires user interaction (e.g., opening a malicious file) but has low attack complexity, potentially leading to high impact on confidentiality, integrity, and availability. While not currently listed in CISA's KEV catalog and lacking public exploit code, the vulnerability has garnered significant community discussion and media coverage, indicating awareness and potential for future exploitation.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
Range not provided by sourceCPE matchmatch criteria | cpe:2.3:a:microsoft:365_apps:-:*:*:*:enterprise:*:x64:* | ||
Range not provided by sourceCPE matchmatch criteria | cpe:2.3:a:microsoft:365_apps:-:*:*:*:enterprise:*:x86:* | ||
2021CPE matchmatch criteria | cpe:2.3:a:microsoft:office_long_term_servicing_channel:2021:*:*:*:*:-:x64:* | ||
2021CPE matchmatch criteria | cpe:2.3:a:microsoft:office_long_term_servicing_channel:2021:*:*:*:*:-:x86:* | ||
2024CPE matchmatch criteria | cpe:2.3:a:microsoft:office_long_term_servicing_channel:2024:*:*:*:*:-:x64:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.
The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.