CVE-2020-12775

Name: CVE-2020-12775
Creator: NVD / NIST
Published: 2022-03-01T02:15:07.213+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 2.91%

Last modified Jun 17, 2026

CVE-2020-12775 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. Hicos citizen certificate client-side component does not filter special characters for command parameters in specific web URLs. An unauthenticated remote attacker can exploit this vulnerability to perform command injection attack to execute arbitrary system command, disrupt system or terminate service.. EPSS estimates a 2.91% chance of exploitation in the next 30 days.

Description

Hicos citizen certificate client-side component does not filter special characters for command parameters in specific web URLs. An unauthenticated remote attacker can exploit this vulnerability to perform command injection attack to execute arbitrary system command, disrupt system or terminate service.

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

2.91%

85.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Moica	Hicos	<= 1.3.4.12
Moica	Hicos	<= 3.0.0

References

https://moica.nat.gov.tw/rac_plugin.htmlPatch, Vendor Advisory
https://www.twcert.org.tw/tw/cp-132-5695-421a7-1.htmlThird Party Advisory
https://moica.nat.gov.tw/rac_plugin.htmlPatch, Vendor Advisory
https://www.twcert.org.tw/tw/cp-132-5695-421a7-1.htmlThird Party Advisory

Timeline

Published: Mar 1, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-12775?

How severe is CVE-2020-12775?

CVE-2020-12775 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 2.91% probability of exploitation in the next 30 days.

How do I fix CVE-2020-12775?

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-2020-12775?

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

Scan your code now

Source: NVD / NIST