Microsoft Office Information Disclosure Vulnerability

published 2023-02-14 3 y ago modified 2026-08-19 2 mo ago also EUVD-2023-25881

cvss: 5.5; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.6%; EPSS 0.6% chance of exploitation in 30 days, percentile 48%
public exploits: 0; none known

Patch / fix

links 1

msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21714 advisory

Exploit prediction

0.60% chance of exploitation in the next 30 days, higher than 48% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	5.5	CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C
CNA	3.1	5.5	CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

Affected products

Microsoft Microsoft 365 Apps for Enterprise
Microsoft Microsoft Office LTSC 2021

Classification

Weakness

CWE-125 Out-of-bounds Read
CWE-668 Exposure of Resource to Wrong Sphere

References

msrc.microsoft.com /update-guide/vulnerability/CVE-2023-21714
vendor-advisory, patch

Sources

CVE List CVE-2023-21714
NVD CVE-2023-21714

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary