Security readout for executives and security teams
Plain-English summary
This is a ChromeOS managed-device control bypass. A person with physical access to an affected Chromebook could use insufficient input validation in VPN handling to bypass restrictions intended to enforce organization policy. The issue is medium severity because it requires physical access, but impact matters for managed fleets where policy enforcement protects data access and network use.
Executive priority
Prioritize routine remediation for managed ChromeOS fleets, especially shared, student, kiosk, or high-turnover devices. This is not a remote compromise signal from the provided sources, but it can weaken policy controls if physical access is realistic.
Technical view
CVE-2022-3312 involves insufficient validation of untrusted input in VPN code in Google Chrome on ChromeOS before 106.0.5249.62. The assigned CWE is CWE-306. CVSS 3.1 is 4.6, with physical access, low complexity, no privileges, no user interaction, unchanged scope, high integrity impact, and no confidentiality or availability impact.
Likely exposure
Exposure is most relevant to organizations managing ChromeOS devices with VPN or device restrictions. The source bundle does not identify broader desktop Chrome impact, specific device models, or affected ChromeOS channels beyond versions before 106.0.5249.62.
Exploitation context
The CVE requires physical access to the device. The bundle does not include public exploit details, proof of exploitation, or inclusion in CISA KEV. Treat active exploitation as unconfirmed based on the provided sources.
Researcher notes
Public technical detail is limited. The Chromium bug reference is included, but the bundle does not provide mechanics. Analysis should stay tied to the CVSS vector, CWE-306, ChromeOS VPN component, and managed restriction bypass description.
Mitigation direction
- Update affected ChromeOS systems to 106.0.5249.62 or later.
- Prefer the latest supported ChromeOS release for managed devices.
- Review Google vendor guidance for any device-management-specific remediation.
- Restrict unsupervised physical access to managed devices until patched.
Validation and detection
- Inventory managed ChromeOS devices and record current Chrome version.
- Confirm no managed devices remain below 106.0.5249.62.
- Verify VPN and device restriction policies still apply after update.
- Check fleet management console compliance status for ChromeOS updates.
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-306: Credential and account abuse lookup
Authentication and credential weaknesses can make valid-account abuse and credential telemetry useful review starting points. 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 lookupCVE-2022-3312 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
- Medium
- CVSS
- 4.6 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
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:P/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N0.93.6Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
4.6MediumVector: CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Source materials
- CVE List V5 sourceCVE List V5
- https://chromereleases.googleblog.com/2022/09/stable-channel-update-for-desktop_27.htmlCVE reference
- https://crbug.com/1303306CVE 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.
Missing Authentication for Critical Function
Missing Authentication for Critical Function represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.