CVE-2019-6841
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…
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 23.7%, higher than 98% of all known CVEs. Patch or mitigate before the next change window.
Description
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.
- CVSS 3.1
- 4.9 MEDIUMCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 23.72% probability · 98th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-755
- Affected
- schneider-electric/modicon m580 firmware · schneider-electric/modicon m340 firmware · schneider-electric/modicon bmxcra firmware · schneider-electric/modicon 140cra firmware
- Source
- cybersecurity@se.com
EPSS 23.7% since 3 November 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://www.se.com/ww/en/download/document/SEVD-2019-281-02/Vendor Advisory
- https://www.se.com/ww/en/download/document/SEVD-2019-281-02/Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.