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CVE-2025-59252

33
FAUCET Score

CVE-2025-59252 is a critical command injection vulnerability (CWE-77) in Microsoft 365 Word Copilot, allowing an unauthorized attacker to disclose sensitive information over a network. With a CVSS score of 9.3 (CRITICAL), this vulnerability requires no user interaction and has a low attack complexity, posing a significant risk for high confidentiality impact. While there is no known active exploitation, public exploit code, or KEV listing, the vulnerability has garnered substantial community discussion and media coverage, indicating high awareness.

Impacted Technologies

VendorProductVersion(s)CPE
Range not provided by sourceCPE matchmatch criteria
cpe:2.3:a:microsoft:365_word_copilot:-:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.3CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:L/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
4.7
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.53%
Probability of exploitation in next 30 days
EPSS Percentile
41.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0053 is in the 21st percentile among its peer group of 36,897 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (1)

microsoftvendor investigatingvia nvd_reference
View patch

Vendor Advisories (1)

microsoft2025-Oct/CVE-2025-59252Critical

M365 Copilot Information Disclosure Vulnerability

Oct 14, 2025

References

msrc.microsoft.com / update-guide/vulnerability/CVE-2025-59252
Vendor Advisory