High severity · published Aug 31, 2020
CVE-2020-7524
Out-of-bounds Write vulnerability exists in Modicon M218 Logic Controller (V5.0.0.7 and prior) which could cause Denial of Service when sending specific crafted IPV4 packet to the…
7.5
CVSS
1.4%
EPSS
No
On KEV
Description
Out-of-bounds Write vulnerability exists in Modicon M218 Logic Controller (V5.0.0.7 and prior) which could cause Denial of Service when sending specific crafted IPV4 packet to the controller: Sending a specific IPv4 protocol package to Schneider Electric Modicon M218 Logic Controller can cause IPv4 devices to go down. The device does not work properly and must be powered back on to return to normal.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.4% · higher than 72% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
MM
Modicon M218 Firmware · Schneider-electric
through 5.0.0.7 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-7524
CVE.org
https://www.cve.org/CVERecord?id=CVE-2020-7524
Vendor Advisory
https://www.se.com/ww/en/download/document/SEVD-2020-224-03/
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