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Fencer Vulns
critical 9.8

CVE-2020-29311 json

Ubilling v1.0.9 allows Remote Command Execution as Root user by executing a malicious command that is injected inside the config file and b…

published 2020-12-10 5 y ago modified 2026-06-17 4 mo ago also EUVD-2020-21686

cvss
9.8
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
6.6%
EPSS 6.6% chance of exploitation in 30 days, percentile 93%
public exploits
0
none known

Summary

Ubilling v1.0.9 allows Remote Command Execution as Root user by executing a malicious command that is injected inside the config file and being triggered by another part of the software.

Exploit prediction

6.56% chance of exploitation in the next 30 days, higher than 93% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • gist.github.com https://gist.github.com/mhaskar/bfa9c2c799fca6697bcc6a213d08cb3e referenced PoC, tagged "exploit" by a source, unverified
  • drive.google.com https://drive.google.com/file/d/1smOjvenPB-nE0PyIxnfujCT4KcxxkeWV/view?usp=sharing referenced PoC, tagged "exploit" by a source, unverified
  • drive.google.com https://drive.google.com/file/d/1iLMFSbY8x1CXIf0uFntovY6yZ7N24dQA/view?usp=sharing referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 10.0 AV:N/AC:L/Au:N/C:C/I:C/A:C

Classification

Weakness
  • CWE-78 Improper Neutralization of Special Elements used in an OS Command
  • 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.