CVE-2025-4598Public exploit

Privileged memory disclosure via PID-reuse race

Published May 30, 2025 · Updated Sep 1, 2026

Information disclosure in systemd-coredump allows local users to read privileged process memory through a mislabeled core dump. Its grant_user_access function reads /proc/PID/auxv after a crash and can authorize the dump using a replacement non-SUID process that reused the PID. Exploitation requires a local account, enabled SUID core dumps, and winning the PID-reuse race; exposed memory can include password hashes from /etc/shadow.

CVSS severity4.7
Medium
EPSS probability0.83%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Information disclosure in systemd-coredump allows local users to read privileged process memory through a mislabeled core dump. Its grant_user_access function reads /proc/PID/auxv after a crash and can authorize the dump using a replacement non-SUID process that reused the PID. Exploitation requires a local account, enabled SUID core dumps, and winning the PID-reuse race; exposed memory can include password hashes from /etc/shadow.

The record

CVE
CVE-2025-4598
Published
May 30, 2025
Updated
Sep 1, 2026
Vendor
Siemens
Product
SIPLUS S7-1500 CPU 1518-4 PN/DP MFP
Classifications
CWE-364, T1003.008
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. May 30, 2025CVE publishedPublication date reported by the CVE source.
  2. Sep 1, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=V3.1.5 <*

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Siemens · SIPLUS S7-1500 CPU 1518-4 PN/DP MFPversion=V3.1.5 <*
389 Directory Server · Red Hat Ceph Storage 7Affected versions are unavailable in this record.
Siemens · SIMATIC S7-1500 CPU 1518F-4 PN/DP MFPversion=V3.1.5 <*
389 Directory Server · Red Hat Enterprise Linux 10Affected versions are unavailable in this record.
389 Directory Server · Red Hat Enterprise Linux 7Affected versions are unavailable in this record.
389 Directory Server · Red Hat Ceph Storage 8Affected versions are unavailable in this record.
389 Directory Server · Red Hat Insights proxy 1.5Affected versions are unavailable in this record.
systemd · systemdversion=0 <252.37; version=253.0 <253.32; version=254.0 <254.25; version=255.0 <255.19; version=256.0 <256.14; version=257.0 <257.6
389 Directory Server · Red Hat Discovery 2Affected versions are unavailable in this record.
Siemens · SIMATIC S7-1500 CPU 1518-4 PN/DP MFPversion=V3.1.5 <*
389 Directory Server · Red Hat Enterprise Linux 9Affected versions are unavailable in this record.
389 Directory Server · Red Hat OpenShift Container Platform 4Affected versions are unavailable in this record.
389 Directory Server · Red Hat Enterprise Linux 8Affected versions are unavailable in this record.

Published CVSS scores

4.7Red HatCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-364Signal Handler Race Condition
T1003.008OS Credential Dumping: /etc/passwd and /etc/shadow

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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