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Fencer Vulns
critical 9.1

CVE-2020-29551 json

An issue was discovered in URVE Build 24.03.2020.

published 2020-12-23 5 y ago modified 2026-06-17 4 mo ago also EUVD-2020-21917

cvss
9.1
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
2.9%
EPSS 2.9% chance of exploitation in 30 days, percentile 86%
public exploits
0
none known

Summary

An issue was discovered in URVE Build 24.03.2020. Using the _internal/pc/shutdown.php path, it is possible to shutdown the system. Among others, the following files and scripts are also accessible: _internal/pc/abort.php, _internal/pc/restart.php, _internal/pc/vpro.php, _internal/pc/wake.php, _internal/error_u201409.txt, _internal/runcmd.php, _internal/getConfiguration.php, ews/autoload.php, ews/del.php, ews/mod.php, ews/sync.php, utils/backup/backup_server.php, utils/backup/restore_server.php, MyScreens/timeline.config, kreator.html5/test.php, and addedlogs.txt.

Exploit prediction

2.87% chance of exploitation in the next 30 days, higher than 86% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • syss.de https://www.syss.de/fileadmin/dokumente/Publikationen/Advisories/SYSS-2020-041.txt referenced PoC, tagged "exploit" by a source, unverified
  • seclists.org http://seclists.org/fulldisclosure/2020/Dec/48 referenced PoC, tagged "exploit" by a source, unverified
  • packetstormsecurity.com http://packetstormsecurity.com/files/160725/URVE-Software-Build-24.03.2020-Missing-Authorization.html referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.1 9.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
NVD 2.0 8.5 AV:N/AC:L/Au:N/C:P/I:N/A:C

Classification

Weakness
  • CWE-306 Missing Authentication for Critical Functionality

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.