CVE-2020-8949

Name: CVE-2020-8949
Creator: NVD / NIST
Published: 2020-02-12T19:15:14.217+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.8/10EPSS 2.83%

Last modified Jun 17, 2026

CVE-2020-8949 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. Gocloud S2A_WL 4.2.7.16471, S2A 4.2.7.17278, S2A 4.3.0.15815, S2A 4.3.0.17193, S3A K2P MTK 4.2.7.16528, S3A 4.3.0.16572, and ISP3000 4.3.0.17190 devices allows remote attackers to execute arbitrary OS commands via shell metacharacters in a ping operation, as demonstrated by the cgi-bin/webui/admin/tools/app_ping/diag_ping/; substring.. EPSS estimates a 2.83% chance of exploitation in the next 30 days.

Description

Gocloud S2A_WL 4.2.7.16471, S2A 4.2.7.17278, S2A 4.3.0.15815, S2A 4.3.0.17193, S3A K2P MTK 4.2.7.16528, S3A 4.3.0.16572, and ISP3000 4.3.0.17190 devices allows remote attackers to execute arbitrary OS commands via shell metacharacters in a ping operation, as demonstrated by the cgi-bin/webui/admin/tools/app_ping/diag_ping/; substring.

Metrics

CVSS 3.1

8.8/10

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

EPSS Probability

2.83%

84.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-78

Affected Software

Vendor	Product	Versions
Gocloud	S2a Wl Firmware	4.2.7.16471
Gocloud	S2a Firmware	4.2.7.17278
Gocloud	S2a Firmware	4.3.0.15815
Gocloud	S2a Firmware	4.3.0.17193
Gocloud	S3a K2p Mtk Firmware	4.2.7.16528
Gocloud	S3a Firmware	4.3.0.16572
Gocloud	Isp3000 Firmware	4.3.0.17190

References

https://sku11army.blogspot.com/2020/02/gocloud-rce-in-gocloud-routers.htmlExploit, Third Party Advisory
https://sku11army.blogspot.com/2020/02/gocloud-rce-in-gocloud-routers.htmlExploit, Third Party Advisory

Timeline

Published: Feb 12, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-8949?

How severe is CVE-2020-8949?

CVE-2020-8949 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 2.83% probability of exploitation in the next 30 days.

How do I fix CVE-2020-8949?

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-2020-8949?

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

Scan your code now

Source: NVD / NIST