CVE-2023-5870

mediumpriority · track · 19EPSS 0.026 · 85 %ileDEEUNLRUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

2.56% (85th) EPSS

CVSS 4.4 · medium

Is it mine?

138 products

Check your exposure

Who says so?

8 sources

cnnvd · enisa_euvd · fstec_bdu · cert_bund

EPSS · scored 2026-10-22

A flaw was found in PostgreSQL involving the pg_cancel_backend role that signals background workers, including the logical replication launcher, autovacuum workers, and the autovacuum launcher. Successful exploitation requires a non-core extension with a less-resilient background worker and would affect that specific background worker only. This issue may allow a remote high privileged user to launch a denial of service (DoS) attack.

remediations

Vendor fix, mitigation, or workaround guidance, as published by each source.

A vendor fix is available.

FixedSINEC NMSsiemens_psirt
Update to V3.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/109973059/
FixedSINEC NMScisa_csaf_ot
Update to V3.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/109973059/

cvss

Technical severity, 0–10. One row per scoring source.

4.4

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · low–medium · 2.2–4.4

v3.14.4mediumCVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:Hprimary · NVD / NIST USexploitability 0.7 · impact 3.6

v3.14.4mediumCVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H/E:P/RL:O/RC:Csecondary · CISA US

v3.12.2lowAV:N/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:Lsecondary · FSTEC (BDU) RU

v3.12.2lowCVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:Lsecondary · ENISA EU

v3.12.2lowCVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:Lsecondary · secalert@redhat.com USexploitability 0.7 · impact 1.4

v3.14.4mediumCVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H/E:P/RL:O/RC:Csecondary · Siemens ProductCERT DE

v3.14.1mediumCVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H/E:Usecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Trackcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-20USCWE-20USCWE-264USCWE-400USCWE-404US

affected products (138)

Products and version ranges known to be affected.

Amazon Linux 2all versionscert_bundDEcpe:/o:amazon:linux_2:-
Debian Linuxall versionscert_bundDEcpe:/o:debian:debian_linux:-
Dell NetWorkerall versionscert_bundDEcpe:/a:dell:networker:-
Gentoo Linuxall versionscert_bundDEcpe:/o:gentoo:linux:-
IBM QRadar SIEM <7.5.0 UP11all versionscert_bundDE
IBM Security Guardium 11.3all versionscert_bundDEcpe:/a:ibm:security_guardium:11.3
IBM Security Guardium 11.4all versionscert_bundDEcpe:/a:ibm:security_guardium:11.4
IBM Security Guardium 11.5all versionscert_bundDEcpe:/a:ibm:security_guardium:11.5
IBM Security Guardium 12.0all versionscert_bundDEcpe:/a:ibm:security_guardium:12.0
IBM Spectrum Protect Plus <10.1.16.3all versionscert_bundDE
Open Source CentOSall versionscert_bundDEcpe:/o:centos:centos:-
Open Source PostgreSQL <11.22all versionscert_bundDE
Open Source PostgreSQL <12.17all versionscert_bundDE
Open Source PostgreSQL <13.13all versionscert_bundDE
Open Source PostgreSQL <14.10all versionscert_bundDE
Open Source PostgreSQL <15.5all versionscert_bundDE
Open Source PostgreSQL <16.1all versionscert_bundDE
Oracle Linuxall versionscert_bundDEcpe:/o:oracle:linux:-
RESF Rocky Linuxall versionscert_bundDEcpe:/o:resf:rocky_linux:-
Red Hat Enterprise Linuxall versionscert_bundDEcpe:/o:redhat:enterprise_linux:-

showing 20 of 138

advisories (6)

Vendor and ecosystem advisories describing this.

NCSC-2024-0332Kwetsbaarheden verholpen in Siemens productenNL2024-08-13csaf · ncsc_nlNL
Siemens heeft kwetsbaarheden verholpen in diverse producten als COMOS, INTRALOG, LOGO!, NX, SCALANCE, SINEC en Teamcenter.
SSA-784301SSA-784301: Multiple Vulnerabilities in SINEC NMS Before V3.02024-08-13csaf · siemens_psirtDE
SINEC NMS before V3.0 is affected by multiple vulnerabilities. Siemens has released a new version for SINEC NMS and recommends to update to the latest version.
WID-SEC-W-2023-2873PostgreSQL: Mehrere SchwachstellenDeutsch2023-11-09csaf · cert_bundDE
Ein entfernter, authentifizierter Angreifer kann mehrere Schwachstellen in PostgreSQL ausnutzen, um Informationen offenzulegen, beliebigen Code auszuführen oder einen Denial-of-Service-Zustand zu verursachen.
WID-SEC-W-2024-1092IBM Security Guardium: Mehrere SchwachstellenDeutsch2024-05-12csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in IBM Security Guardium ausnutzen, um seine Privilegien zu erhöhen, beliebigen Code auszuführen, Sicherheitsmaßnahmen zu umgehen, einen Denial-of-Service-Zustand zu verursachen oder vertrauliche Informationen offenzulegen.
ICSA-24-228-06Siemens SINEC NMS2024-08-13icsa · cisa_csaf_otUS
SINEC NMS before V3.0 is affected by multiple vulnerabilities. Siemens has released a new version for SINEC NMS and recommends to update to the latest version.
BIT-postgresql-2023-5870Postgresql: role pg_signal_backend can signal certain superuser processes.2024-03-06vendor · osvUS
A flaw was found in PostgreSQL involving the pg_cancel_backend role that signals background workers, including the logical replication launcher, autovacuum workers, and the autovacuum launcher. Successful exploitation requires a non-core extension with a less-resilient background worker and would affect that specific background worker only. This issue may allow a remote high privileged user to launch a denial of service (DoS) attack.

also known as (4)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu cert_bund ncsc_nl siemens_psirt cisa_csaf_ot osv NVD CVE.org MITRE

published 2023-12-10modified 2026-06-17

references (84)

External citations — patches, advisories, analysis.

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