Stack-based buffer overflow in Dell CPG BIOS
Priority LOW 34CWE-121Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- High
- User interaction
- None
- Attack complexity
- High
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-121 and the CVSS impact.
Summary
Dell BIOS contains a stack based buffer overflow vulnerability. A local authenticated malicious user may potentially exploit this vulnerability by using an SMI to send larger than expected input to a parameter in order to gain arbitrary code execution in SMRAM.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00178 7th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Dell | CPG BIOS | 1.4.3 | — | No fix listed | CNA |
- CPG BIOS VendorDell Affected 1.4.3 Fixed in — No fix listed CNA
CPE configurations NVD · 6
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:dell:alienware_m15_a6_firmware:*:*:*:*:*:*:*:* | before 1.4.3 | Vulnerable | Dell |
| cpe:2.3:h:dell:alienware_m15_a6:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Dell |
| cpe:2.3:o:dell:alienware_m17_r5_firmware:*:*:*:*:*:*:*:* | before 1.4.3 | Vulnerable | Dell |
| cpe:2.3:h:dell:alienware_m17_r5:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Dell |
| cpe:2.3:o:dell:g15_5525_firmware:*:*:*:*:*:*:*:* | before 1.4.3 | Vulnerable | Dell |
| cpe:2.3:h:dell:g15_5525:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Dell |
- cpe:2.3:o:dell:alienware_m15_a6_firmware:*:*:*:*:*:*:*:* Versions before 1.4.3 Vulnerable ·Dell
- cpe:2.3:h:dell:alienware_m15_a6:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Dell
- cpe:2.3:o:dell:alienware_m17_r5_firmware:*:*:*:*:*:*:*:* Versions before 1.4.3 Vulnerable ·Dell
- cpe:2.3:h:dell:alienware_m17_r5:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Dell
- cpe:2.3:o:dell:g15_5525_firmware:*:*:*:*:*:*:*:* Versions before 1.4.3 Vulnerable ·Dell
- cpe:2.3:h:dell:g15_5525:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Dell
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2022-34401
- 2026-10-03 Alias added: GHSA-xr3m-j4q9-hqr4
References
More Dell Alienware M15 A6 Firmware vulnerabilities
- TI-2022-15297 Memory corruption in Dell CPG BIOS CVSS 3.1MEDIUM 5.1
Sources
- CVE-2022-34401 · CVE Program
- CVE-2022-34401 · NVD
- FIRST EPSS
- GHSA-xr3m-j4q9-hqr4 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences