6.5

CVE-2026-108453: microsoft microsoft 365 apps for enterprise Out-of-bounds Read

CVSS: 6.5v3.1MediumAwaiting analysis
Published 15-10-2026Last modified 16-10-2026
Open JSON

Vulnerability summary

CVE-2026-108453 is a medium (CVSS 6.5) Out-of-bounds Read vulnerability in microsoft microsoft 365 apps for enterprise. EPSS estimates a 0.53% chance of exploitation in the next 30 days, higher than 43.3% of scored vulnerabilities.

Overall risk
26/100
0100
Medium · default modelHow is this calculated?
CVSS score
6.5/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.53%
0%100%
Low · Change unavailable
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 15-10-2026
    PublishedVulnerability first disclosed.
  2. 16-10-2026
    Last modifiedVulnerability information updated.

Description

Out-of-bounds read in Microsoft Office PowerPoint allows an unauthorized attacker to disclose information over a network.

CVSS metrics

2 scores · 2 sources · 1 version

EPSS trend

Probability

0.53%

Chance of exploitation in the next 30 days

Percentile

43%

Versus all other CVEs

30-day change

Change unavailable

Change unavailable

16-10-202619-10-2026
EPSS score
0.53%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Microsoft6 products

1 vendor · 6 products

References

1 links