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CVE-2023-31437

MEDIUM
5.3
CVSS Score
Published: June 13, 2023 at 12:00 AM UTC
Updated: June 17, 2026 at 05:56 AM UTC
1 product affected across 1 vendorSystemd

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Severity
MEDIUM5.3
Exploit prediction
EPSS 0.3%
SSVC
No known exploit

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."

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (3)

Third Party Advisory
Source: [email protected]
https://github.com/kastel-security/Journald
Technical Description
Source: [email protected]
https://github.com/kastel-security/Journald/blob/main/journald-publication.pdf
Release Notes
Source: [email protected]
https://github.com/systemd/systemd/releases

SSVC — Action Prioritization

SSVCNo known exploitAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

5.3MEDIUMCISA-ADP
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
LOW
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-354

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