Security readout for executives and security teams
CVE-2021-37975 is a Chrome V8 memory-safety flaw that could let a remote attacker compromise a user who opens a malicious HTML page. Google fixed it in Chrome 94.0.4606.71. CISA lists it in KEV, so organizations should treat remaining legacy exposure as urgent. Exposure is most likely on endpoints running Chrome or downstream Chromium packages older than the fixed vendor release. Normal user browsing is enough exposure because exploitation is described through a crafted HTML page, but user interaction is required. Treat as a high-priority legacy exposure. It affects a widely deployed browser engine, requires only user interaction, has high impact, and is listed by CISA as known exploited. Mitigation focus: Upgrade Chrome to 94.0.4606.71 or later.; Update downstream Chromium packages from OS vendors.; Prioritize internet-browsing endpoints and shared workstations..
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
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ATT&CK lookup starting points
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Open ATT&CK lookupCVE-2021-37975 mapping review
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Open ATT&CK lookup- Severity
- High
- CVSS
- 8.8 (3.1)
- Known Exploited
- Yes
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CISA KEV status
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H2.85.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
8.8HighVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Source materials
- CVE List V5 sourceCVE List V5
- https://chromereleases.googleblog.com/2021/09/stable-channel-update-for-desktop_30.htmlCVE reference
- https://crbug.com/1252918CVE reference
- FEDORA-2021-116eff380fCVE reference · vendor-advisory
- FEDORA-2021-5ffabdc080CVE reference · vendor-advisory
- FEDORA-2021-5093f11905CVE reference · vendor-advisory
- DSA-5046CVE reference · vendor-advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-37975CVE reference · government-resource
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Use After Free
Use After Free represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.