CVE-2021-38669: microsoft edge
CVSS: 7.5v2.0HighModified
Published 15-09-2021Last modified 10-08-2026
Vulnerability summary
CVE-2021-38669 is a high (CVSS 7.5) vulnerability in microsoft edge. EPSS estimates a 2.92% chance of exploitation in the next 30 days, higher than 86.8% of scored vulnerabilities.
CVSS score
7.5/10
010
High · v2.0 (NVD)EPSS score
2.92%
0%100%
Low · +0.02 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 15-09-2021PublishedVulnerability first disclosed.
- 10-08-2026Last modifiedVulnerability information updated.
Description
Microsoft Edge (Chromium-based) Tampering Vulnerability
CVSS metrics
3 scores · 2 sources · 2 versionsMedium 6.4Preferred score · CVE.org (CNA)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N/E:U/RL:O/RC:CSourcesAll 2 agree
- NVDNIST6.4MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
High 7.5Preferred score · NVD (NIST)
AV:N/AC:L/Au:N/C:P/I:P/A:PSourcesSingle source
EPSS trend
Probability
2.92%
Chance of exploitation in the next 30 days
Percentile
87%
Versus all other CVEs
30-day change
+0.02 pp
From 2.89% on 20-09-2026
20-09-202620-10-2026
EPSS score2.92%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeNo weakness data has been published for this record.
Affected systems
Microsoft3 products
- edge< 93.0.961.44
- edge_chromium< 93.04577.63
- microsoft edge (chromium-based)≥ 1.0.0.0, < 93.0.961.44
1 vendor · 3 products
References
2 links- portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-38669X Refsource MISCX TransferredPatchVendor Advisory