CVE-2026-78319

TOCTOU Vulnerability in file exchange

Published Sep 1, 2026 CVSS 4.0 · 9.3 Critical EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

Sign in to view the affected projects.

Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Sauter modu612-lc
Sauter modu660-as
Sauter modu680-as
Vendors & Products Sauter modu612-lc
Sauter modu660-as
Sauter modu680-as
Type Values Removed Values Added
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.
Title TOCTOU Vulnerability in file exchange
First Time appeared Sauter
Sauter ecos504
Sauter ecos505
Sauter modu612 Lc
Sauter modu660 As
Sauter modu680 As
Weaknesses CWE-367
CPEs cpe:2.3:h:sauter:ecos504:*:*:*:*:*:*:*:*
cpe:2.3:h:sauter:ecos505:*:*:*:*:*:*:*:*
cpe:2.3:h:sauter:modu612_lc:*:*:*:*:*:*:*:*
cpe:2.3:h:sauter:modu660_as:*:*:*:*:*:*:*:*
cpe:2.3:h:sauter:modu680_as:*:*:*:*:*:*:*:*
Vendors & Products Sauter
Sauter ecos504
Sauter ecos505
Sauter modu612 Lc
Sauter modu660 As
Sauter modu680 As
References
Metrics cvssV4_0

{'score': 9.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
CERTVDE
Published
Updated
Sep 1, 2026, 5:36 PM
Reserved
Aug 24, 2026, 8:38 AM
Status
Deferred
Published
Sep 1, 2026, 7:16 AM
Modified
Sep 3, 2026, 4:57 PM