CVE-2023-34440 Privilege escalation in Intel(R) Processors
High 8.7
Published
Updated
Check this codebase for CVE-2023-34440 and fix it if it is affected.
What it is: CVE-2023-34440 is a high-severity vulnerability in Intel(R) Processors, published on 12 Feb 2025. It can only be exploited from the same machine or local network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2023-34440 in the wild and no public exploit code.
Affected product: Intel(R) Processors. No package-level version data is available, so check the vendor advisory linked from the reference page.
Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.
Reference: https://insights.sbomify.com/CVE-2023-34440/ (Markdown: https://insights.sbomify.com/CVE-2023-34440/index.md)
A privileged local attacker can escalate privileges due to improper input validation in Intel processor UEFI firmware.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2023-34440?
CVE-2023-34440 is a high-severity vulnerability in Intel(R) Processors, published on 12 Feb 2025. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Improper input validation in UEFI firmware for some Intel(R) Processors may allow a privileged user to potentially enable escalation of privilege via local access.
Weakness: CWE-20
Which versions are affected by CVE-2023-34440?
How do I fix CVE-2023-34440?
Apply the vendor's patch.
Is CVE-2023-34440 being exploited?
There is no known exploitation of CVE-2023-34440 in the wild and no public exploit code.
Sources
Also known as BELL-CVE-2023-34440, DEBIAN-CVE-2023-34440, GHSA-474w-fcfg-344q.