Security readout for executives and security teams
CVE-2020-15999 is a critical memory-corruption flaw in FreeType as used by Google Chrome before 86.0.4240.111. A user visiting a maliciously crafted web page could expose the browser to compromise. CISA KEV listing means defenders should treat legacy vulnerable systems as urgent. Highest exposure is user workstations running Google Chrome before 86.0.4240.111. Because FreeType is a common font-rendering library and the bundle includes Linux distribution advisories, vulnerability managers should also check vendor guidance for packaged FreeType or browser dependencies in their estate. Treat as urgent for any legacy browser or FreeType exposure. The vulnerability is critical, remotely reachable through browsing activity, and listed by CISA as known exploited. Current fully patched environments have lower residual risk, but stale endpoints deserve immediate attention. Mitigation focus: Upgrade Google Chrome to 86.0.4240.111 or later where applicable.; Review linked Linux distribution advisories for applicable FreeType package updates.; Prioritize remediation for internet-browsing endpoints and high-risk user populations..
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-2020-15999 mapping review
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Open ATT&CK lookup- Severity
- Critical
- CVSS
- 9.6 (3.1)
- Known Exploited
- Yes
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/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:C/C:H/I:H/A:H2.86Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
9.6CriticalVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
Source materials
- CVE List V5 sourceCVE List V5
- https://crbug.com/1139963CVE reference
- https://chromereleases.googleblog.com/2020/10/stable-channel-update-for-desktop_20.htmlCVE reference
- FEDORA-2020-6b35849eddCVE reference · vendor-advisory
- GLSA-202011-12CVE reference · vendor-advisory
- GLSA-202012-04CVE reference · vendor-advisory
- DSA-4824CVE reference · vendor-advisory
- https://googleprojectzero.blogspot.com/p/rca-cve-2020-15999.htmlCVE reference
- GLSA-202401-19CVE reference · vendor-advisory
- https://security.netapp.com/advisory/ntap-20240812-0001/CVE reference
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-15999CVE 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.
Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.