CVE-2020-5637

Name: CVE-2020-5637
Creator: NVD / NIST
Published: 2020-12-14T03:15:13.543+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.8/10EPSS 0.37%

Last modified Jun 17, 2026

CVE-2020-5637 is a medium-severity vulnerability rated 6.8/10 on the CVSS scale. Improper validation of integrity check value vulnerability in Aterm SA3500G firmware versions prior to Ver. 3.5.9 allows an attacker with an administrative privilege to execute a malicious program.. EPSS estimates a 0.37% chance of exploitation in the next 30 days.

Description

Improper validation of integrity check value vulnerability in Aterm SA3500G firmware versions prior to Ver. 3.5.9 allows an attacker with an administrative privilege to execute a malicious program.

Metrics

CVSS 3.1

6.8/10

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

EPSS Probability

0.37%

29.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-354

Affected Software

Vendor	Product	Versions
Necplatforms	Aterm Sa3500g Firmware	< 3.5.9

References

https://jvn.jp/en/jp/JVN55917325/index.htmlThird Party Advisory
https://jvn.jp/jp/JVN55917325/index.htmlThird Party Advisory
https://www.necplatforms.co.jp/product/security_ap/info_20201211.htmlVendor Advisory
https://jvn.jp/en/jp/JVN55917325/index.htmlThird Party Advisory
https://jvn.jp/jp/JVN55917325/index.htmlThird Party Advisory
https://www.necplatforms.co.jp/product/security_ap/info_20201211.htmlVendor Advisory

Timeline

Published: Dec 14, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-5637?

Improper validation of integrity check value vulnerability in Aterm SA3500G firmware versions prior to Ver. 3.5.9 allows an attacker with an administrative privilege to execute a malicious program.

How severe is CVE-2020-5637?

CVE-2020-5637 has a CVSS score of 6.8/10 (MEDIUM severity). The EPSS model estimates a 0.37% probability of exploitation in the next 30 days.

How do I fix CVE-2020-5637?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-5637?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST