LiveActive security incident?Get immediate response
CVE Record

CVE-2021-30577: Insufficient policy enforcement in Installer in Google Chrome prior to 92.0.4515.107 allowed a remote attac...

Insufficient policy enforcement in Installer in Google Chrome prior to 92.0.4515.107 allowed a remote attacker to perform local privilege escalation via a crafted file.

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

Security readout for executives and security teams

Plain-English summary

CVE-2021-30577 is a Google Chrome Installer policy enforcement flaw fixed in Chrome 92.0.4515.107. The source description says a remote attacker could use a crafted file to gain higher local privileges. The provided sources do not include CVSS, exploit details, or confirmed active exploitation.

Executive priority

Treat this as a hygiene-driven endpoint update priority. The vulnerability enables privilege escalation in an extremely common browser, but the provided evidence does not show active exploitation or detailed attack maturity.

Technical view

The issue affects Google Chrome before 92.0.4515.107 and is described as insufficient policy enforcement in the Installer. The known impact is local privilege escalation via a crafted file. Public detail is limited; the linked Chromium bug may restrict access, and the provided bundle does not identify CWE, CVSS, affected platforms, or exploit prerequisites beyond the crafted file.

Likely exposure

Exposure is most likely on endpoints running Chrome versions earlier than 92.0.4515.107, including managed desktops and Linux packages that lagged behind vendor updates. Current Chrome installations are unlikely to be exposed if normal browser update controls are functioning.

Exploitation context

The source bundle does not show CISA KEV listing or any cited evidence of active exploitation. It only states that a remote attacker could perform local privilege escalation with a crafted file, without public exploit mechanics or required user interaction details.

Researcher notes

Public evidence is sparse. Avoid assuming broader Chromium-derived product impact unless separately confirmed. Focus validation on version state, installer exposure, update policy, and vendor package advisories rather than exploit reproduction.

Mitigation direction

  • Update Google Chrome to 92.0.4515.107 or later.
  • Confirm Linux distribution Chrome or Chromium packages received the relevant Fedora/vendor updates.
  • Review vendor guidance for any platform-specific remediation details.
  • Prioritize managed endpoints where browser auto-update is disabled or delayed.

Validation and detection

  • Inventory Chrome versions and flag anything earlier than 92.0.4515.107.
  • Check endpoint management records for successful Chrome update deployment.
  • Review Linux package versions against relevant Fedora advisories where applicable.
  • Confirm browser update policy does not block security updates.
Prepared
Confidence
medium
Sources
7

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.

description · low confidence lookup

Privilege behavior lookup

The CVE wording references privilege impact, so privilege escalation and authorization behavior review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.

Open ATT&CK lookup
cve · low confidence lookup

CVE-2021-30577 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
6Source 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.