How severe is CVE-2023-0751?

CVE-2023-0751 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2023-0751 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (46th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-0751?

CVE-2023-0751 primarily affects Freebsd. In total, 18 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2023-0751?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2023-0751 published?

CVE-2023-0751 was published on 2023-02-08 and last updated on 2026-06-17.

CVE-2023-0751

CVE-2023-0751 is a medium-severity vulnerability in Freebsd with a CVSS 3.x base score of 6.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-20.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
EPSS exploit prediction: 1% (46th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Freebsd
Published: 2023-02-08
Last modified: 2026-06-17

Description

When GELI reads a key file from standard input, it does not reuse the key file to initialize multiple providers at once resulting in the second and subsequent devices silently using a NULL key as the user key file. If a user only uses a key file without a user passphrase, the master key is encrypted with an empty key file allowing trivial recovery of the master key.

Frequently asked questions

What is CVE-2023-0751?: When GELI reads a key file from standard input, it does not reuse the key file to initialize multiple providers at once resulting in the second and subsequent devices silently using a NULL key as the user key file. If a user only uses a key file without a user passphrase, the master key is encrypted with an empty key file allowing trivial recovery of the master key.
How severe is CVE-2023-0751?: CVE-2023-0751 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2023-0751 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (46th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-0751?: CVE-2023-0751 primarily affects Freebsd. In total, 18 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2023-0751?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-0751 published?: CVE-2023-0751 was published on 2023-02-08 and last updated on 2026-06-17.

References

Affected products (18)

cpe:2.3:o:freebsd:freebsd:12.3:-:*:*:*:*:*:*
cpe:2.3:o:freebsd:freebsd:12.3:p1:*:*:*:*:*:*
cpe:2.3:o:freebsd:freebsd:12.3:p2:*:*:*:*:*:*
cpe:2.3:o:freebsd:freebsd:12.3:p3:*:*:*:*:*:*
cpe:2.3:o:freebsd:freebsd:12.3:p4:*:*:*:*:*:*
cpe:2.3:o:freebsd:freebsd:12.3:p5:*:*:*:*:*:*
cpe:2.3:o:freebsd:freebsd:12.4:-:*:*:*:*:*:*
cpe:2.3:o:freebsd:freebsd:12.4:rc2-p1:*:*:*:*:*:*
cpe:2.3:o:freebsd:freebsd:12.4:rc2-p2:*:*:*:*:*:*
cpe:2.3:o:freebsd:freebsd:13.1:-:*:*:*:*:*:*
cpe:2.3:o:freebsd:freebsd:13.1:b1-p1:*:*:*:*:*:*
cpe:2.3:o:freebsd:freebsd:13.1:b2-p2:*:*:*:*:*:*
cpe:2.3:o:freebsd:freebsd:13.1:p1:*:*:*:*:*:*
cpe:2.3:o:freebsd:freebsd:13.1:p2:*:*:*:*:*:*
cpe:2.3:o:freebsd:freebsd:13.1:p3:*:*:*:*:*:*
cpe:2.3:o:freebsd:freebsd:13.1:p4:*:*:*:*:*:*
cpe:2.3:o:freebsd:freebsd:13.1:p5:*:*:*:*:*:*
cpe:2.3:o:freebsd:freebsd:13.1:rc1-p1:*:*:*:*:*:*

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