Critical 9.1Published Jan 8, 2020

CVE-2019-20367nlist.c in libbsd before 0.10.0 has an out-of-bounds read during a comparison for a symbol name from the string table (strtab).

Updated under an hour ago (Oct 26, 2026, 1:20 PM ET)

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It affects Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP and 6 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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Every CVE for Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP

Exploited in the last 30 days

nlist.c in libbsd before 0.10.0 has an out-of-bounds read during a comparison for a symbol name from the string table (strtab).

CVSS: 9.1 CRITICAL (v3.1, NVD)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
Weakness (CWE): Not given
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

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
freedesktop libbsd freedesktop:libbsd	before 0.10.0	NVD
debian debian_linux debian:debian_linux	9.0	NVD
canonical ubuntu_linux canonical:ubuntu_linux	12.04; 14.04; 16.04; 18.04; 19.04	NVD
opensuse leap opensuse:leap	15.1	NVD

References

References

https://lists.freedesktop.org/archives/libbsd/2019-August/000229.html	x-refsource-misc, mailing-list, release-notes, vendor-advisory
https://gitlab.freedesktop.org/libbsd/libbsd/commit/9d917aad37778a9f4a96ba358415f077f3f36f3b	x-refsource-misc, exploit, vendor-advisory
https://usn.ubuntu.com/4243-1/	vendor-advisory, x-refsource-ubuntu, third-party-advisory
http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00043.html	vendor-advisory, x-refsource-suse, mailing-list, third-party-advisory
https://lists.debian.org/debian-lts-announce/2021/02/msg00027.html	mailing-list, x-refsource-mlist, third-party-advisory
https://lists.apache.org/thread.html/ra781e51cf1ec40381c98cddc073b3576fb56c3978f4564d2fa431550%40%3Cdev.tomee.apache.org%3E	mailing-list, x-refsource-mlist
https://lists.apache.org/thread.html/r0e913668380f59bcbd14fdd8ae8d24f95f99995e290cd18a7822c6e5%40%3Cdev.tomee.apache.org%3E	mailing-list, x-refsource-mlist
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.