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CVE-2023-30630: Dmidecode before 3.5 allows -dump-bin to overwrite a local file

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HIGH 7.1UPGRADE

CVE-2023-30630 is a high-severity flaw (CVSS 7.1) affecting dmidecode. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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

Why this priority

  • High severity
  • Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score7.1 (High)
Attack vectorLocal
Attack complexityLow
Privileges neededLow
User interactionNone
EPSS exploit chance0.5% (top 57%)
CISA exploited listNo
WeaknessCWE-23
Published2023-04-13
Last modified2026-06-17
Publisher (CNA): MITRE · Vendor: nongnu

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Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

nongnu dmidecode UPGRADE
Affected: < 3.5
Fixed in: 3.5
Safe to downgrade to: no unaffected older release
1. Check installed version
apt-cache policy dmidecode || rpm -q dmidecode || dmidecode --version
2. UPGRADE to 3.5 (Debian / Ubuntu)
sudo apt update && sudo apt install --only-upgrade dmidecode
2. UPGRADE (RHEL / Amazon Linux / Fedora)
sudo dnf upgrade dmidecode
Note
Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.
Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2023-30630?

dmidecode: upgrade to 3.5. Exact commands for each OS are on this page.

Is CVE-2023-30630 being exploited?

CVE-2023-30630 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2023-30630 affect?

CVE-2023-30630 affects dmidecode. Severity is high (CVSS 7.1). 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 addr

How urgent is CVE-2023-30630?

Priority 41/100. High severity; Public exploit reference

Software pages

Sudo vulnerabilities

References

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