CVE-2025-4598: Debian Linux

Medium severity, CVSS 4.7. EPSS: 1.2% chance of exploitation in the next 30 days.

A vulnerability was found in systemd-coredump. This flaw allows an attacker to force a SUID process to crash and replace it with a non-SUID binary to access the original's privileged process coredump, allowing the attacker to read sensitive data, such as /etc/shadow content, loaded by the original process. A SUID binary or process has a special type of permission, which allows the process to run with the file owner's permissions, regardless of the user executing the binary. This allows the process to access more restricted data than unprivileged users or processes would be able to. An attacker can leverage this flaw by forcing a SUID process to crash and force the Linux kernel to recycle the process PID before systemd-coredump can analyze the /proc/pid/auxv file. If the attacker wins the race condition, they gain access to the original's SUID process coredump file. They can read sensitive content loaded into memory by the original binary, affecting data confidentiality.

Affected products

• Debian Debian Linux: version 11.0 only; version 12.0 only
• Linux Linux Kernel: before 6.16 (fixed in 6.16)
• Oracle Linux: version 8 only; version 9 only
• Red Hat Enterprise Linux: version 7.0 only; version 8.0 only; version 9.0 only; version 10.0 only
• Red Hat Openshift Container Platform: version 4.0 only
• Systemd Project Systemd: before 252.37 (fixed in 252.37); from 253, before 253.32 (fixed in 253.32); from 254, before 254.25 (fixed in 254.25); from 255, before 255.19 (fixed in 255.19); from 256, before 256.14 (fixed in 256.14); from 257, before 257.6 (fixed in 257.6)

Published 2025-05-30. Last modified 2026-09-01.