SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityAnalyzed

CVE-2023-36761

Microsoft Word Information Disclosure Vulnerability

KEVMEDIUM 6.5EPSS 19.6%

Does this matter?

Known to be exploited in the wild (CISA KEV, CISA remediation deadline 3 October 2023). Treat as an emergency change: patch or isolate now, then hunt for prior compromise.

Description

Microsoft Word Information Disclosure Vulnerability

CVSS 3.1
6.5 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
EPSS
19.57% probability · 97th percentile
Public exploits
None in Exploit-DB
CISA KEV
Listed 12 September 2023 · due 3 October 2023
Weakness
CWE-20
Affected
microsoft/365 apps · microsoft/office · microsoft/office long term servicing channel · microsoft/word
Source
secure@microsoft.com
EPSS trend
0%10%20%30 October 2026: 19.57%30 October 202630 October 2026

EPSS 19.6% since 30 October 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

CISA notes

Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable. https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-36761; https://nvd.nist.gov/vuln/detail/CVE-2023-36761

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.