CVE-2020-7502 — HIGH (7.5) — White Hats Nepal

Q: How severe is CVE-2020-7502?

CVE-2020-7502 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.

Q: Is there a patch for CVE-2020-7502?

Check the references section above for vendor advisories and patch information. Affected products include: Schneider-Electric Modicon M218 Firmware, Schneider-Electric Modicon M218.

Vulnerability Description

A CWE-787: Out-of-bounds Write vulnerability exists in Modicon M218 Logic Controller (Firmware version 4.3 and prior), which may cause a Denial of Service when specific TCP/IP crafted packets are sent to the Modicon M218 Logic Controller.

CVSS Score

7.5

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

NONE

Integrity

NONE

Availability

HIGH

Affected Products

Vendor	Product	Versions
Schneider-Electric	Modicon M218 Firmware	<= 4.3
Schneider-Electric	Modicon M218	-

Related Weaknesses (CWE)

CWE-787

References

https://www.se.com/ww/en/download/document/SEVD-2020-161-01Vendor Advisory
https://www.se.com/ww/en/download/document/SEVD-2020-161-01Vendor Advisory

FAQ

What is CVE-2020-7502?

CVE-2020-7502 is a vulnerability with a CVSS score of 7.5 (HIGH). A CWE-787: Out-of-bounds Write vulnerability exists in Modicon M218 Logic Controller (Firmware version 4.3 and prior), which may cause a Denial of Service when specific TCP/IP crafted packets are sent...

How severe is CVE-2020-7502?

CVE-2020-7502 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2020-7502?

Check the references section above for vendor advisories and patch information. Affected products include: Schneider-Electric Modicon M218 Firmware, Schneider-Electric Modicon M218.