CVE-2024-21343: Windows Network Address Translation (NAT) Denial of Service Vulnerability
Modified
Published 13-02-2024Last modified 10-08-2026
Vulnerability summary
CVE-2024-21343 is a high (CVSS 7.5) Out-of-bounds Read vulnerability in microsoft windows_10_1507. EPSS estimates a 1.84% chance of exploitation in the next 30 days, higher than 78.8% of scored vulnerabilities.
CVSS score
7.5/10
010
High · v3.1 (NVD)EPSS score
1.84%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded
Timeline
- 13-02-2024PublishedVulnerability first disclosed.
- 10-08-2026Last modifiedVulnerability information updated.
Description
Windows Network Address Translation (NAT) Denial of Service Vulnerability
CVSS metrics
2 scores · 2 sources · 1 versionHigh 7.5Preferred score · NVD (NIST)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HSources2 sources · 5.9–7.5
- CVE.orgCNA5.9MediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:CDiffers
EPSS trend
Probability
1.84%
Chance of exploitation in the next 30 days
Percentile
79%
Versus all other CVEs
30-day change
No change 0.00 pp
From 1.84% on 22-09-2026
22-09-202622-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Microsoft27 products
- windows_10_1507< 10.0.10240.20469
- windows_10_1607< 10.0.14393.6709
- windows_10_1809< 10.0.17763.5458
- windows_10_21h2< 10.0.19044.4046
- windows_10_22h2< 10.0.19045.4046
1 vendor · 27 products
