Multiple vulnerabilities in Siemens products (August 12, 2026)

unknownCVE-2026-59693 CVE-2026-58115

Multiple vulnerabilities have been discovered in Siemens products. They allow an attacker to cause remote arbitrary code execution, remote denial of service and security policy bypass.

CSIRTS triage

vendor: Siemens Remote code execution Denial of serviceMisconfiguration

What: Multiple vulnerabilities in Siemens products enable remote code execution, denial of service, and security policy bypass.
Who is affected: Siemens product deployments affected by CVE-2026-59693 and CVE-2026-58115.
Urgency: Highly urgent; RCE in industrial control systems poses operational and safety risks.
Action: Apply Siemens security patches and review security policy configurations for bypass conditions.

AI-assisted analysis generated from the source advisory — verify against the original.

Details

Source: CERT-FR Avis de sécurité (FR · national-cert · site)
Severity: unknown
Published: 2026-08-12
Exploitation: Not in CISA KEV at last sync
Language: Machine-translated to English — verify against the original

Original advisory: https://www.cert.ssi.gouv.fr/avis/CERTFR-2026-AVI-1009/

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Low exploitation riskCVE-2026-596930.16% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 6% of all EPSS-scored CVEs.
Low exploitation riskCVE-2026-581150.65% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 48% of all EPSS-scored CVEs.

Referenced CVEs

CVE	CSIRTS overview	External
CVE-2026-59693	coverage & exploitation status	NVD · CVE.org
CVE-2026-58115	coverage & exploitation status	NVD · CVE.org

Same CVEs, other sources

How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.

Recent advisories for Siemens products

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

unknownNCSC-2026-0282 [1.00] [M/H] Vulnerabilities fixed in Siemens productsncsc-nl · 2026-08-11
unknownMultiple vulnerabilities in Siemens products (July 15, 2026)cert-fr-avis · 2026-07-15
unknownNCSC-2026-0229 [1.00] [M/H] Vulnerabilities fixed in Siemens productsncsc-nl · 2026-07-14
unknownMultiple vulnerabilities in Siemens products (July 10, 2026)cert-fr-avis · 2026-07-10
unknownSiemens Products using OpenSSLcisa · 2026-06-23