CVE-2020-29552

Name: CVE-2020-29552
Creator: NVD / NIST
Published: 2020-12-23T16:15:12.64+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 4.82%

Last modified Jun 17, 2026

CVE-2020-29552 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. An issue was discovered in URVE Build 24.03.2020. By using the _internal/pc/vpro.php?mac=0&ip=0&operation=0&usr=0&pass=0%3bpowershell+-c+" substring, it is possible to execute a Powershell command and redirect its output to a file under the web root.. EPSS estimates a 4.82% chance of exploitation in the next 30 days.

Description

An issue was discovered in URVE Build 24.03.2020. By using the _internal/pc/vpro.php?mac=0&ip=0&operation=0&usr=0&pass=0%3bpowershell+-c+" substring, it is possible to execute a Powershell command and redirect its output to a file under the web root.

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

4.82%

90.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-78

Affected Software

Vendor	Product	Versions
Urve	Urve	24.03.2020

References

http://packetstormsecurity.com/files/160722/URVE-Software-Build-24.03.2020-Authentication-Bypass-Remote-Code-Execution.htmlExploit, Third Party Advisory, VDB Entry
http://seclists.org/fulldisclosure/2020/Dec/47Exploit, Mailing List, Third Party Advisory
https://urve.co.uk/system-rezerwacji-salVendor Advisory
https://www.syss.de/fileadmin/dokumente/Publikationen/Advisories/SYSS-2020-040.txtExploit, Third Party Advisory
http://packetstormsecurity.com/files/160722/URVE-Software-Build-24.03.2020-Authentication-Bypass-Remote-Code-Execution.htmlExploit, Third Party Advisory, VDB Entry
http://seclists.org/fulldisclosure/2020/Dec/47Exploit, Mailing List, Third Party Advisory
https://urve.co.uk/system-rezerwacji-salVendor Advisory
https://www.syss.de/fileadmin/dokumente/Publikationen/Advisories/SYSS-2020-040.txtExploit, Third Party Advisory

Timeline

Published: Dec 23, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-29552?

How severe is CVE-2020-29552?

CVE-2020-29552 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 4.82% probability of exploitation in the next 30 days.

How do I fix CVE-2020-29552?

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-2020-29552?

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

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Source: NVD / NIST