CVE-2026-20846: microsoft microsoft office for android Buffer Over-read
CVSS: 7.5v3.1HighAnalyzed
Published 10-02-2026Last modified 19-08-2026
Vulnerability summary
CVE-2026-20846 is a high (CVSS 7.5) Buffer Over-read vulnerability in microsoft microsoft office for android. EPSS estimates a 1.43% chance of exploitation in the next 30 days, higher than 72.6% of scored vulnerabilities.
CVSS score
7.5/10
010
High · v3.1 (CVE.org)EPSS score
1.43%
0%100%
Low · +0.04 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 10-02-2026PublishedVulnerability first disclosed.
- 19-08-2026Last modifiedVulnerability information updated.
Description
Buffer over-read in Windows GDI+ allows an unauthorized attacker to deny service over a network.
CVSS metrics
2 scores · 2 sources · 1 versionHigh 7.5Preferred score · CVE.org (CNA)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:CSourcesAll 2 agree
- NVDNIST7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS trend
Probability
1.43%
Chance of exploitation in the next 30 days
Percentile
73%
Versus all other CVEs
30-day change
+0.04 pp
From 1.39% on 20-09-2026
20-09-202620-10-2026
EPSS score1.43%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Microsoft29 products
- microsoft office for android≥ 16.0.1, < 16.0.19822.20000
- windows_10_1607< 10.0.14393.8868
- windows_10_1809< 10.0.17763.8389
- windows_10_21h2< 10.0.19044.6937
- windows_10_22h2< 10.0.19045.6937
1 vendor · 29 products
