Security readout for executives and security teams
Plain-English summary
This Chrome flaw could let a malicious web page break out of Chrome’s sandbox after convincing a user to perform specific UI gestures. That raises the business risk from browser compromise to possible broader system impact. The source bundle does not show confirmed active exploitation.
Executive priority
Prioritize remediation quickly because browser sandbox escape issues can convert routine web browsing into high-impact endpoint risk. The urgency is high, but the provided evidence does not support claiming active exploitation.
Technical view
CVE-2022-4920 is a CWE-787 heap buffer overflow in Blink affecting Google Chrome before 101.0.4951.41. The CVSS 3.1 score is 9.6 with network attack vector, required user interaction, changed scope, and high confidentiality, integrity, and availability impact.
Likely exposure
Exposure is most likely on endpoints running Google Chrome older than 101.0.4951.41. Fedora package references indicate downstream package relevance, but the supplied sources do not provide enough detail to name additional affected products beyond Chrome.
Exploitation context
The described attack requires a crafted HTML page and user engagement with specific UI gestures. CISA KEV is false in the supplied bundle, and no cited source here confirms active exploitation. Treat exploit availability as unproven from this evidence.
Researcher notes
Key constraints are user interaction and specific UI gestures. The public description is high level, and the Chromium bug reference may not expose full technical detail. Validate by version and package state, not by attempting exploitation.
Mitigation direction
- Upgrade Google Chrome to 101.0.4951.41 or later.
- Confirm managed browser update policies are enforcing the fixed version.
- For Fedora Chromium packages, check the cited Fedora advisories and apply available updates.
- Prioritize internet-facing user endpoints and high-privilege administrator workstations.
- Follow current vendor guidance if newer downstream package instructions differ.
Validation and detection
- Inventory Chrome versions across endpoint management and vulnerability tools.
- Flag Chrome installations older than 101.0.4951.41.
- Verify patched endpoints report the updated browser version after restart.
- Check Fedora systems for relevant Chromium package advisory status.
- Review browser crash or security telemetry, without assuming exploitation.
Public sources used
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
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.
CWE-787: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupPrivilege 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 lookupCVE-2022-4920 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Critical
- CVSS
- 9.6 (3.1)
- Known Exploited
- No
- 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.
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://chromereleases.googleblog.com/2022/04/stable-channel-update-for-desktop_26.htmlCVE reference
- https://crbug.com/1306861CVE reference
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PQKT7EGDD2P3L7S3NXEDDRCPK4NNZNWJ/CVE reference
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/YKLJ3B3D5BCVWE3QNP4N7HHF26OHD567/CVE reference
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.
Out-of-bounds Write
Out-of-bounds Write represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.