CVE-2025-27751 is a critical Use-After-Free vulnerability in Microsoft Office Excel, impacting various Microsoft Office products including Microsoft 365 Apps and Office Online Server. With a CVSS score of 7.8 (High), this vulnerability allows an unauthenticated attacker to achieve local code execution with low attack complexity, leading to high confidentiality, integrity, and availability impacts. While not currently listed in CISA's KEV catalog, an exploit (EDB-52332) is publicly available on ExploitDB, and it has garnered significant community discussion and media coverage, including reports of it being a zero-day fixed in a recent Patch Tuesday.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
Range not provided by sourceCPE matchmatch criteria | cpe:2.3:a:microsoft:365_apps:-:*:*:*:enterprise:*:*:* | ||
2016CPE matchmatch criteria | cpe:2.3:a:microsoft:excel:2016:*:*:*:*:*:*:* | ||
2019CPE matchmatch criteria | cpe:2.3:a:microsoft:office:2019:*:*:*:*:*:*:* | ||
2021CPE matchmatch criteria | cpe:2.3:a:microsoft:office_long_term_servicing_channel:2021:*:*:*:*:-:*:* | ||
2021CPE matchmatch criteria | cpe:2.3:a:microsoft:office_long_term_servicing_channel:2021:*:*:*:*:macos:*:* |
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.