CVE-2026-32226: microsoft microsoft .net framework 3.5 Race Condition
CVSS: 5.9v3.1MediumAnalyzed
Published 14-04-2026Last modified 15-10-2026
Vulnerability summary
CVE-2026-32226 is a medium (CVSS 5.9) Race Condition vulnerability in microsoft microsoft .net framework 3.5. EPSS estimates a 0.66% chance of exploitation in the next 30 days, higher than 50.4% of scored vulnerabilities.
CVSS score
5.9/10
010
Medium · v3.1 (CVE.org)EPSS score
0.66%
0%100%
Low · +0.11 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 14-04-2026PublishedVulnerability first disclosed.
- 15-10-2026Last modifiedVulnerability information updated.
Description
Concurrent execution using shared resource with improper synchronization ('race condition') in .NET Framework allows an unauthorized attacker to deny service over a network.
CVSS metrics
2 scores · 2 sources · 1 versionMedium 5.9Preferred score · CVE.org (CNA)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:CSourcesAll 2 agree
- NVDNIST5.9MediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS trend
Probability
0.66%
Chance of exploitation in the next 30 days
Percentile
50%
Versus all other CVEs
30-day change
+0.11 pp
From 0.54% on 19-09-2026
19-09-202619-10-2026
EPSS score0.66%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Microsoft9 products
- microsoft .net framework 3.5≥ 3.5.0, < 2.0.50727.8982 & 3.0.30729.8976
- microsoft .net framework 3.5 and 4.7.2≥ 4.7.0, < 2.0.50727.9068 & 3.0.30729.9065 & 4.7.4141.0
- microsoft .net framework 3.5 and 4.8≥ 4.8.0, < 2.0.50727.9068 & 3.0.30729.9065 & 4.8.4801.0
- microsoft .net framework 3.5 and 4.8.1≥ 4.8.1, < 2.0.50727.9181 & 3.0.30729.9165 & 4.8.9332.0
- microsoft .net framework 4.6.2/4.7/4.7.1/4.7.2≥ 4.7.0, < 4.8.4801.0
1 vendor · 9 products