Vulnerability · Published Feb 12, 2025 · Assigned by intel
CVE-2023-34440
High 7.5
In plain English
A high-severity improper input validation in Intel(R) Processors. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 17% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)7.5High
Exploit odds (30 days)0.3%top 83.0% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | intel-microcode | 3.20250211.1~deb12u1 | DEBIAN-CVE-2023-34440 |
| Debian:13 | intel-microcode | 3.20250211.1 | DEBIAN-CVE-2023-34440 |
| Debian:14 | intel-microcode | 3.20250211.1 | DEBIAN-CVE-2023-34440 |
| Ubuntu:22.04:LTS | intel-microcode | no fix listed | UBUNTU-CVE-2023-34440 |
| Ubuntu:24.04:LTS | intel-microcode | no fix listed | UBUNTU-CVE-2023-34440 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| n/a | Intel(R) Processors | See references |
Weakness: CWE-20 · Vector: CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H