What’s Vulnerable › Vulnerabilities

CVE-2026-78319: TOCTOU Vulnerability in file exchange

• Severity: critical (CVSS 9.3 v4.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-09-01 · updated 2026-09-03
• Weakness: CWE-367

Description

A service running on the affected products contains a potential Time-of-Check Time-of-Use (TOCTOU) race condition. An unauthenticated remote attacker could exploit this race condition to bypass intended security controls. This may result in the execution of unauthorized code.

Affected products

• Sauter ecos504: from 1.0.0 before 7.0.0 — fixed in 7.0.0
• Sauter ecos505: from 1.0.0 before 7.0.0 — fixed in 7.0.0
• Sauter modu612-LC: from 1.0.0 before 4.0.0 — fixed in 4.0.0
• Sauter modu660-AS: from 1.0.0 before 4.0.0 — fixed in 4.0.0
• Sauter modu680-AS: from 1.0.0 before 4.0.0 — fixed in 4.0.0

How to fix

Upgrade to a fixed version: Sauter ecos504 7.0.0; Sauter ecos505 7.0.0; Sauter modu612-LC 4.0.0; Sauter modu660-AS 4.0.0; Sauter modu680-AS 4.0.0. Check the vendor advisory for mitigations.

References

• https://sauter.csaf-tp.certvde.com/.well-known/csaf/white/2026/vde-2026-093.json
• https://www.certvde.com/en/advisories/VDE-2026-093/

Get alerted when CVE-2026-78319 or the next vulnerability affects your stack