CVE-2023-26604systemd before 247 does not adequately block local privilege escalation for some Sudo configurations, e.g., plausible sudoers files in which the "systemctl status" command may be executed.
Updated under an hour ago ()
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It affects Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP and 4 other products. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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systemd before 247 does not adequately block local privilege escalation for some Sudo configurations, e.g., plausible sudoers files in which the "systemctl status" command may be executed. Specifically, systemd does not set LESSSECURE to 1, and thus other programs may be launched from the less program. This presents a substantial security risk when running systemctl from Sudo, because less executes as root when the terminal size is too small to show the complete systemctl output.
- CVSS
- 7.8 HIGH (v3.1, CISA ADP)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Weakness (CWE)
- CWE-269
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- mitre
- NVD analysis
- Modified
- Record last updated
- Oct 14, 2026
- First seen by InfoSec Signals
- Oct 14, 2026
Affected products
Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP siemens:simatic_s7_1500_cpu_1518_4_pn_dp_mfp (from the name) | from V3.1.0 before V3.1.5 | CISA ADP |
Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP siemens:simatic_s7_1500_cpu_1518f_4_pn_dp_mfp (from the name) | from V3.1.0 before V3.1.5 | CISA ADP |
Siemens SIPLUS S7-1500 CPU 1518-4 PN/DP MFP siemens:siplus_s7_1500_cpu_1518_4_pn_dp_mfp (from the name) | from V3.1.0 before V3.1.5 | CISA ADP |
debian debian_linux debian:debian_linux | 10.0 | NVD |
systemd_project systemd systemd_project:systemd | before 246.7 | NVD |
References
- https://medium.com/%40zenmoviefornotification/saidov-maxim-cve-2023-26604-c1232a526ba7third-party-advisory
- https://github.com/systemd/systemd/blob/main/NEWS#L4335-L4340release-notes
- https://blog.compass-security.com/2012/10/dangerous-sudoers-entries-part-2-insecure-functionality/exploit, third-party-advisory
- https://lists.debian.org/debian-lts-announce/2023/03/msg00032.htmlmailing-list, third-party-advisory
- https://security.netapp.com/advisory/ntap-20230505-0009/third-party-advisory
- http://packetstormsecurity.com/files/174130/systemd-246-Local-Root-Privilege-Escalation.htmlexploit, third-party-advisory
- https://cert-portal.siemens.com/productcert/html/ssa-398330.html
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.