CVE-2019-6841 json
A CWE-755: Improper Handling of Exceptional Conditions vulnerability exists in Modicon M580 with firmware (version prior to V3.10), Modicon…
published 2019-10-29 7 y ago modified 2026-06-17 4 mo ago also EUVD-2019-16395
- cvss
- 4.9
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 23.7%
- EPSS 23.7% chance of exploitation in 30 days, percentile 97%
- public exploits
- 0
- none known
Summary
A CWE-755: Improper Handling of Exceptional Conditions vulnerability exists in Modicon M580 with firmware (version prior to V3.10), Modicon M340 (all firmware versions), and Modicon BMxCRA and 140CRA modules (all firmware versions), which could cause a Denial of Service attack on the PLC when upgrading the firmware with no firmware image inside the package using FTP protocol.
Exploit prediction
23.72% chance of exploitation in the next 30 days, higher than 97% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 4.9 | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H |
| NVD | 2.0 | 4.0 | AV:N/AC:L/Au:S/C:N/I:N/A:P |
Affected products
- n/a Modicon M580, Modicon M340, and Modicon BMxCRA / 140CRA modules (see notification for version info)
Classification
- Weakness
-
- CWE-755 Improper Handling of Exceptional Conditions
References
-
se.com
/ww/en/download/document/SEVD-2019-281-02/
vendor-advisory
Sources
- CVE List CVE-2019-6841
- NVD CVE-2019-6841
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.