7.8

CVE-2026-20948: microsoft 365_apps Untrusted Pointer Dereference

CVSS: 7.8v3.1HighAnalyzed
Published 13-01-2026Last modified 30-07-2026
Open JSON

Vulnerability summary

CVE-2026-20948 is a high (CVSS 7.8) Untrusted Pointer Dereference vulnerability in microsoft 365_apps. EPSS estimates a 0.60% chance of exploitation in the next 30 days, higher than 47.8% of scored vulnerabilities.

Overall risk
31/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.8/10
010
High · v3.1 (CVE.org)
EPSS score
0.60%
0%100%
Low · -0.01 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 13-01-2026
    PublishedVulnerability first disclosed.
  2. 30-07-2026
    Last modifiedVulnerability information updated.

Description

Untrusted pointer dereference in Microsoft Office Word allows an unauthorized attacker to execute code locally.

CVSS metrics

2 scores · 2 sources · 1 version

EPSS trend

Probability

0.60%

Chance of exploitation in the next 30 days

Percentile

48%

Versus all other CVEs

30-day change

-0.01 pp

From 0.61% on 21-09-2026

21-09-202621-10-2026
EPSS score
0.60%

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

Microsoft14 products

1 vendor · 14 products

References

1 links