A systemd security update has been released for Debian GNU/Linux 10 LTS to address a local privilege escalation for some sudo configurations.

DLA 3377-1: systemd security update

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Debian LTS Advisory DLA-3377-1 debian-lts@lists.debian.org
  https://www.debian.org/lts/security/ Adrian Bunk
March 31, 2023   https://wiki.debian.org/LTS
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Package : systemd
Version : 241-7~deb10u9
CVE ID : CVE-2023-26604

Local privilege escalation for some sudo configurations has been fixed
in systemd, the default init system in Debian.

For Debian 10 buster, this problem has been fixed in version 241-7~deb10u9.

We recommend that you upgrade your systemd packages.

For the detailed security status of systemd please refer to
its security tracker page at:
  https://security-tracker.debian.org/tracker/systemd

Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at:   https://wiki.debian.org/LTS