CVE-2023-36873: microsoft microsoft .net framework 3.5 and 4.6.2 Improper Input Validation
CVSS: 7.4v3.1HighModified
Published 08-08-2023Last modified 10-08-2026
Vulnerability summary
CVE-2023-36873 is a high (CVSS 7.4) Improper Input Validation vulnerability in microsoft microsoft .net framework 3.5 and 4.6.2. EPSS estimates a 1.50% chance of exploitation in the next 30 days, higher than 73.9% of scored vulnerabilities.
CVSS score
7.4/10
010
High · v3.1 (CVE.org)EPSS score
1.50%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 08-08-2023PublishedVulnerability first disclosed.
- 10-08-2026Last modifiedVulnerability information updated.
Description
.NET Framework Spoofing Vulnerability
CVSS metrics
2 scores · 2 sources · 1 versionHigh 7.4Preferred score · CVE.org (CNA)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N/E:P/RL:O/RC:CSources2 sources · 5.9–7.4
- NVDNIST5.9MediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:NDiffers
EPSS trend
Probability
1.50%
Chance of exploitation in the next 30 days
Percentile
74%
Versus all other CVEs
30-day change
0.00 pp
From 1.50% on 19-09-2026
19-09-202619-10-2026
EPSS score1.50%
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 and 4.6.2≥ 4.7.0, < 10.0.10240.20107
- microsoft .net framework 3.5 and 4.6.2/4.7/4.7.1/4.7.2≥ 3.0.0.0, < 10.0.14393.6167
- microsoft .net framework 3.5 and 4.7.2≥ 4.7.0, < 3.5.04057.05
- microsoft .net framework 3.5 and 4.8≥ 4.8.0, < 3.5.4654.08
- microsoft .net framework 3.5 and 4.8.1≥ 4.8.1, < 3.5.09176.01
1 vendor · 9 products
