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Fencer Intel
high 8.8

CVE-2020-21999 json

iWT Ltd FaceSentry Access Control System 6.4.8 suffers from an authenticated OS command injection vulnerability using default credentials.

published 5y ago modified 4mo ago also EUVD-2020-14765

cvss
8.8
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
5.2%
EPSS 5.2% chance of exploitation in 30 days, percentile 92%
public exploits
0
none known

Summary

iWT Ltd FaceSentry Access Control System 6.4.8 suffers from an authenticated OS command injection vulnerability using default credentials. This can be exploited to inject and execute arbitrary shell commands as the root user via the 'strInIP' POST parameter in pingTest PHP script.

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Exploit prediction

5.24% chance of exploitation in the next 30 days, higher than 92% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • exploit-db.com https://www.exploit-db.com/exploits/47066 referenced PoC, tagged "exploit" by a source, unverified
  • zeroscience.mk https://www.zeroscience.mk/en/vulnerabilities/ZSL-2019-5525.php referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.1 8.8 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 9.0 AV:N/AC:L/Au:S/C:C/I:C/A:C

Classification

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

References

Sources

Fencer Intel 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.