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CVE-2022-34403

27
FAUCET Score

CVE-2022-34403 is a high-severity stack-based buffer overflow vulnerability found in Dell BIOS. A local, authenticated attacker can exploit this by sending oversized input via a System Management Interrupt (SMI) to a parameter, potentially achieving arbitrary code execution within SMRAM. With a CVSS score of 8.8 (High), this vulnerability allows for significant impact including confidentiality, integrity, and availability compromise, though it requires local access and authentication. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 1.17.0CPE matchmatch criteria
cpe:2.3:o:dell:alienware_m15_r6_firmware:*:*:*:*:*:*:*:*
< 1.4.3CPE matchmatch criteria
cpe:2.3:o:dell:alienware_m15_r7_firmware:*:*:*:*:*:*:*:*
< 1.8.0CPE matchmatch criteria
cpe:2.3:o:dell:alienware_m15_ryzen_edition_r5_firmware:*:*:*:*:*:*:*:*
< 1.4.3CPE matchmatch criteria
cpe:2.3:o:dell:alienware_m17_r5_amd_firmware:*:*:*:*:*:*:*:*
< 1.16.0CPE matchmatch criteria
cpe:2.3:o:dell:g15_5510_firmware:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H

Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
HIGH
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
0.8
Impact Score
6.0
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.17%
Probability of exploitation in next 30 days
EPSS Percentile
6.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0017 is in the 27th percentile among its peer group of 17,061 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

dell.com / support/kbdoc/000205716
Vendor Advisory