Security readout for executives and security teams
Plain-English summary
CVE-2022-38096 is a Linux kernel vmwgfx graphics-driver NULL pointer dereference. A local user on an affected system may trigger a crash or availability impact through the DRM render device. The source bundle does not show confirmed active exploitation.
Executive priority
Treat as a moderate operational-risk issue. It is not evidence-backed as actively exploited, but local users on affected systems may cause disruptive crashes. Patch through normal vulnerability maintenance, with faster handling for shared or virtualized environments.
Technical view
The flaw is CWE-476 in drivers/gpu/vmxgfx/vmxgfx_execbuf.c. The described attack path requires local account access and interaction with /dev/dri/renderD128 or similar render nodes. CVSS 3.1 is 6.3, with no confidentiality impact, low integrity impact, and high availability impact.
Likely exposure
Most relevant exposure is Linux systems using the vmwgfx driver, especially virtualized desktops or hosts exposing DRM render devices to local users. The bundle names Linux kernel v4.20-rc1 and references later vendor security advisories, but does not provide a complete affected-version matrix.
Exploitation context
This is not listed in KEV, and the provided sources do not establish exploitation in the wild. The scenario is local post-access abuse rather than unauthenticated remote compromise. Business impact is mainly downtime or instability on affected systems.
Researcher notes
The public bundle is thin on root-cause detail, exploitability boundaries, and complete version ranges. Avoid assuming broader affected products beyond vendor advisories. Siemens and Debian references indicate downstream tracking or updates, but the supplied evidence does not include detailed remediation text.
Mitigation direction
- Apply kernel updates from the OS or appliance vendor.
- Review Debian, Siemens, and Linux vendor advisories for affected builds.
- Prioritize multi-user systems exposing vmwgfx render devices.
- Limit local user and render-device access according to business need.
- Monitor vendor guidance if exact affected versions are unclear.
Validation and detection
- Inventory Linux kernel versions on potentially affected systems.
- Confirm whether vmwgfx is present and in use.
- Check whether DRM render devices are accessible to local users.
- Verify installed kernel packages include vendor security fixes.
- Review system logs for graphics-driver crashes or kernel oops events.
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-476: 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 lookupCVE-2022-38096 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
- 6.3 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/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.
SSVC decision data
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:L/UI:R/S:U/C:N/I:L/A:H2.14.2AnolisVulnerability scoring details
Base CVSS 3.1 score
6.3MediumVector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:H
Vulnerability timeline
Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.
- CVE reservedCVE Program
The CVE ID was reserved by the assigning CNA.
- CVE publishedCVE Program
The CVE record was published.
- CVE updatedCVE Program
The CVE record metadata indicates this as the latest update time.
ADP provider summaries
Source materials
- CVE List V5 sourceCVE List V5
- https://bugzilla.openanolis.cn/show_bug.cgi?id=2073CVE reference, Anolis
- [debian-lts-announce] 20240625 [SECURITY] [DLA 3842-1] linux-5.10 security updateCVE reference, Anolis · mailing-list
- https://cert-portal.siemens.com/productcert/html/ssa-265688.htmlCVE reference, siemens-SADP
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.
NULL Pointer Dereference
NULL Pointer Dereference represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.