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Fencer Intel
critical 9.8

CVE-2020-5723 json

The UCM6200 series 1.0.20.22 and below stores unencrypted user passwords in an SQLite database.

published 6y ago modified 4mo ago also EUVD-2020-26882

cvss
9.8
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
5.9%
EPSS 5.9% chance of exploitation in 30 days, percentile 93%
public exploits
1
Metasploit

Summary

The UCM6200 series 1.0.20.22 and below stores unencrypted user passwords in an SQLite database. This could allow an attacker to retrieve all passwords and possibly gain elevated privileges.

Patch / fix

  • grandstream ucm6202_firmware 1.0.20.22
  • grandstream ucm6204_firmware 1.0.20.22
  • grandstream ucm6208_firmware 1.0.20.22

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Timeline

  1. First public exploit (Metasploit auxiliary/gather/grandstream_ucm62xx_sql_account_guess)
  2. Published

Exploit prediction

5.89% chance of exploitation in the next 30 days, higher than 93% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

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 5.0 AV:N/AC:L/Au:N/C:P/I:N/A:N

Affected products

  • n/a Grandstream UCM6200 series

Classification

Weakness
  • CWE-312 Cleartext Storage of Sensitive Information

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.