How severe is CVE-2023-31437?

CVE-2023-31437 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability none.

Is CVE-2023-31437 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (26th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-31437?

CVE-2023-31437 affects Systemd Project Systemd. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-31437?

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

When was CVE-2023-31437 published?

CVE-2023-31437 was published on 2023-06-13 and last updated on 2026-06-17.

CVE-2023-31437

CVE-2023-31437 is a medium-severity vulnerability in Systemd Project Systemd with a CVSS 3.x base score of 5.3. 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-354.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
EPSS exploit prediction: 0% (26th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-354
Affected product: Systemd Project Systemd
Published: 2023-06-13
Last modified: 2026-06-17

Description

An issue was discovered in systemd 253. An attacker can modify a sealed log file such that, in some views, not all existing and sealed log messages are displayed. NOTE: the vendor reportedly sent "a reply denying that any of the finding was a security vulnerability."

Frequently asked questions

What is CVE-2023-31437?: An issue was discovered in systemd 253. An attacker can modify a sealed log file such that, in some views, not all existing and sealed log messages are displayed. NOTE: the vendor reportedly sent "a reply denying that any of the finding was a security vulnerability."
How severe is CVE-2023-31437?: CVE-2023-31437 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability none.
Is CVE-2023-31437 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (26th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-31437?: CVE-2023-31437 affects Systemd Project Systemd. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-31437?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-31437 published?: CVE-2023-31437 was published on 2023-06-13 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:systemd_project:systemd:253:-:*:*:*:*:*:*

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