dbcve.org
R6515 FirmwareOperating system · Dell

CVE-2022-34408

MEDIUM · 6.7 CVSS v3.1 Published 2023-03-16
Fix available
A fix is available. Upgrade to 1.19.0 / 2.9.3 or later.
See remediation →
69/100
Remediation priority · Elevated
Zero-click Patch available

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
Dell PowerEdge BIOS and Dell Precision BIOS contain an Improper SMM communication buffer verification vulnerability. A local malicious user with high Privileges may potentially exploit this vulnerability to perform arbitrary code execution or cause denial of service.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis
How this class of weakness works · CWE-119

The program reads or writes outside the bounds of an allocated buffer, corrupting adjacent memory. With crafted input an attacker can overwrite control data and, with effort, redirect execution to their own code. Remediation ranges from bounds checking and safe library functions to compiler mitigations, usually alongside a careful audit of the surrounding code.

General guidance for the memory buffer bounds error class — the official description and references above are authoritative for this specific CVE. Want a bespoke review and a reviewed fix? Ask our team →

Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.

NVD · CPE data
R6515 FirmwareOperating system
Affected:< 2.9.3
R7515 FirmwareOperating system
Affected:< 2.9.3
R6525 FirmwareOperating system
Affected:< 2.9.3
R7525 FirmwareOperating system
Affected:< 2.9.3
Xe8545 FirmwareOperating system
Affected:< 2.9.4
C6525 FirmwareOperating system
Affected:all versions
R6415 FirmwareOperating system
Affected:< 1.19.0
R7415 FirmwareOperating system
Affected:< 1.19.0

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Local
Complexity
Low
Privileges
High
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

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

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

dbcve · scoped
Upgrade available Upgrade to 1.19.0 / 2.9.3 / 2.9.4 or later
Fixed in 1.19.02.9.32.9.4
Vendor patch www.dell.com →
Recommended fix High confidence

R6515/R7515/R6525/R7525: firmware 2.9.3; Xe8545: firmware 2.9.4; R6415/R7415: firmware 1.19.0

  1. Back up current BIOS/firmware configuration and ensure you have a way to recover in case of failed update
  2. Review the full upgrade instructions at the vendor support KB article: https://www.dell.com/support/kbdoc/en-us/000206296/dsa-2022-204-dell-poweredge-improper-smm-communication-buffer-verification-vulnerability
  3. Download the appropriate BIOS/firmware update from Dell support for your specific PowerEdge model
  4. Follow Dell's standard BIOS firmware update procedure - typically this involves running the update utility from within Windows, Linux, or via iDRAC Lifecycle Controller
  5. For R6515, R7515, R6525, R7525: upgrade to firmware version 2.9.3 or later
  6. For Xe8545: upgrade to firmware version 2.9.4 or later
  7. For R6415, R7415: upgrade to firmware version 1.19.0 or later
  8. Note: C6525 has no fixed version available - contact Dell support for mitigation options or workaround
Caveat BIOS firmware updates carry risk of system unbootability if interrupted; ensure stable power and follow vendor instructions precisely

Generated from the published advisory — verify against the referenced sources before acting.

We can perform the upgrade in your staging environment and verify nothing breaks — typical engagement from $2,850. Get the upgrade done

Scan for this in your stack

Free · runs locally
dbcve dependency scanner

Check whether your project pulls in CVE-2022-34408 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.

Get it on GitHub Scan in the browser

References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2022-34408 in production — separate from our analysis above.

No notes yet

Be the first to add a field note for this CVE — a mitigation you’ve verified, a version caveat, or a link to a working fix. Sign in above to contribute.

What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
  • No weaponised exploit code, or anything meant to cause harm
  • No spam, self-promotion, credentials, or personal data