CVE-2023-30630

Severity: high (CVSS 7.1 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.5% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2023-04-13 · updated 2026-06-17
Weakness: CWE-23

Description

Dmidecode before 3.5 allows -dump-bin to overwrite a local file. This has security relevance because, for example, execution of Dmidecode via Sudo is plausible. NOTE: Some third parties have indicated the fix in 3.5 does not adequately address the vulnerability. The argument is that the proposed patch prevents dmidecode from writing to an existing file. However, there are multiple attack vectors that would not require overwriting an existing file that would provide the same level of unauthorized privilege escalation (e.g. creating a new file in /etc/cron.hourly).

Affected products

Nongnu Dmidecode: before 3.5 — fixed in 3.5

How to fix

Upgrade to a fixed version: Nongnu Dmidecode 3.5. Check the vendor advisory for mitigations.

References

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