CVE-2020-8963

Name: CVE-2020-8963
Creator: NVD / NIST
Published: 2020-02-13T03:15:10.67+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 2.68%

Last modified Jun 17, 2026

CVE-2020-8963 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. TimeTools SC7105 1.0.007, SC9205 1.0.007, SC9705 1.0.007, SR7110 1.0.007, SR9210 1.0.007, SR9750 1.0.007, SR9850 1.0.007, T100 1.0.003, T300 1.0.003, and T550 1.0.003 devices allow remote attackers to execute arbitrary OS commands via shell metacharacters in the t3.cgi srmodel or srtime parameter.. EPSS estimates a 2.68% chance of exploitation in the next 30 days.

Description

TimeTools SC7105 1.0.007, SC9205 1.0.007, SC9705 1.0.007, SR7110 1.0.007, SR9210 1.0.007, SR9750 1.0.007, SR9850 1.0.007, T100 1.0.003, T300 1.0.003, and T550 1.0.003 devices allow remote attackers to execute arbitrary OS commands via shell metacharacters in the t3.cgi srmodel or srtime parameter.

Metrics

CVSS 3.1

9.8/10

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

EPSS Probability

2.68%

83.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-78

Affected Software

Vendor	Product	Versions
Timetoolsltd	Sr9850 Firmware	1.0.007
Timetoolsltd	Sr9750 Firmware	1.0.007
Timetoolsltd	Sc9705 Firmware	1.0.007
Timetoolsltd	Sr9210 Firmware	1.0.007
Timetoolsltd	Sc9205 Firmware	1.0.007
Timetoolsltd	Sr7110 Firmware	1.0.007
Timetoolsltd	Sc7105 Firmware	1.0.007
Timetoolsltd	T100 Firmware	1.0.003
Timetoolsltd	T300 Firmware	1.0.003
Timetoolsltd	T550 Firmware	1.0.003

References

https://sku11army.blogspot.com/2020/02/timetools-sr-sc-series-network-time.htmlExploit, Third Party Advisory
https://sku11army.blogspot.com/2020/02/timetools-sr-sc-series-network-time.htmlExploit, Third Party Advisory

Timeline

Published: Feb 13, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-8963?

How severe is CVE-2020-8963?

CVE-2020-8963 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 2.68% probability of exploitation in the next 30 days.

How do I fix CVE-2020-8963?

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-2020-8963?

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

Scan your code now

Source: NVD / NIST