LiveActive security incident?Get immediate response
CVE Record

CVE-2020-15995: Out of bounds write in V8 in Google Chrome prior to 86.0.4240.99 allowed a remote attacker to potentially e...

Out of bounds write in V8 in Google Chrome prior to 86.0.4240.99 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.

UnknownCVSS not scoredNot KEV-listedUpdated
Discuss exposureBack to CVEs
Glexia's TakeAutomated analysishigh

Security readout for executives and security teams

Plain-English summary

This Chrome vulnerability is a browser memory corruption issue in V8. A user visiting a maliciously crafted HTML page could trigger an out-of-bounds write. The sources identify Chrome before 86.0.4240.99 as affected, making outdated browsers the main business exposure.

Executive priority

Treat this as a high-priority browser patching issue, especially for user endpoints. There is no cited active exploitation in the provided sources, but remote browser heap corruption through web content is a serious exposure class.

Technical view

CVE-2020-15995 is an out-of-bounds write in Google Chrome V8 before 86.0.4240.99. The CVE description says a remote attacker could potentially exploit heap corruption through a crafted HTML page. No CVSS, CWE, or detailed root-cause data is provided in the bundle.

Likely exposure

Exposure is likely where Chrome or Chromium-based distribution packages remained below vendor-fixed versions. User workstations, managed browsers, Android Chrome, and Linux systems using distro Chromium packages are the relevant inventory targets.

Exploitation context

The bundle does not show CISA KEV listing or cited evidence of active exploitation. The attack context is remote web content: a crafted HTML page could potentially corrupt heap memory in the browser process.

Researcher notes

Public details are sparse. The Chromium bug reference is listed, but the source bundle does not provide exploitability mechanics, CVSS, CWE mapping, or proof-of-concept information. Avoid assuming exploitation in the wild without additional evidence.

Mitigation direction

  • Update Google Chrome to 86.0.4240.99 or later.
  • Apply Chromium package updates from Debian, Gentoo, Fedora, or relevant vendors.
  • Prioritize managed endpoints with internet-facing browser use.
  • Check vendor advisories for any platform-specific fixed package versions.
  • No source-provided workaround is listed; rely on vendor updates.

Validation and detection

  • Inventory Chrome and Chromium versions across endpoint management systems.
  • Confirm Chrome is not below 86.0.4240.99.
  • Check Linux package advisory status for Debian, Gentoo, and Fedora systems.
  • Review browser update compliance for Android Chrome where applicable.
  • Verify no unsupported browser builds remain in production.
Prepared
Confidence
medium
Sources
8

Public sources used

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

cve · low confidence lookup

CVE-2020-15995 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

Open ATT&CK lookup
Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

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.

0CVSS vectors
0Timeline events
0ADP providers
7Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
GoogleChromeunspecifiedListed
Weakness

CWE details

No CWE listed

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.