Denial of service in Schneider Electric Modicon M580 PLCs, BMENOR2200H and EVLink Pro AC

1) Incorrect Calculation of Buffer Size

EUVDB-ID: #VU103704

Risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2024-11425

CWE-ID: CWE-131 - Incorrect Calculation of Buffer Size

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to incorrect calculation of buffer size. A remote attacker can trigger memory corruption and cause a denial of service condition on the target system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

BMENOR2200H: All versions

Modicon M580: before 4.30

Modicon M580 CPU Safety: before 4.21

EVLink Pro AC: before 1.3.10

CPE2.3

• cpe:2.3:h:schneider_electric:bmenor2200h:*:*:*:*:*:*:*:*
• cpe:2.3:h:schneider_electric:modicon_m580:*:*:*:*:*:*:*:*
• cpe:2.3:h:schneider_electric:modicon_m580_cpu_safety:*:*:*:*:*:*:*:*
• cpe:2.3:h:schneider_electric:evlink_pro_ac:*:*:*:*:*:*:*:*

External links

http://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2025-014-01&p_enDocType=Security+and+Safety+Notice&p_File_Name=SEVD-2025-014-01.pdf
http://www.cisa.gov/news-events/ics-advisories/icsa-25-035-04

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.