CVE-2020-21452

Name: CVE-2020-21452
Creator: NVD / NIST
Published: 2021-04-29T17:15:08.91+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 1.09%

Last modified Jun 17, 2026

CVE-2020-21452 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. An issue was discovered in uniview ISC2500-S. This is an upload vulnerability where an attacker can upload malicious code via /Interface/DevManage/EC.php?cmd=upload. EPSS estimates a 1.09% chance of exploitation in the next 30 days.

Description

An issue was discovered in uniview ISC2500-S. This is an upload vulnerability where an attacker can upload malicious code via /Interface/DevManage/EC.php?cmd=upload

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

1.09%

61.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-434

Affected Software

Vendor	Product	Versions
Uniview	Isc2500-S Firmware	All versions

References

https://github.com/qq1654985095/tyqNot Applicable
https://github.com/qq1654985095/tyqNot Applicable

Timeline

Published: Apr 29, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-21452?

An issue was discovered in uniview ISC2500-S. This is an upload vulnerability where an attacker can upload malicious code via /Interface/DevManage/EC.php?cmd=upload

How severe is CVE-2020-21452?

CVE-2020-21452 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 1.09% probability of exploitation in the next 30 days.

How do I fix CVE-2020-21452?

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-2020-21452?

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

Scan your code now

Source: NVD / NIST