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Fencer Intel
high 7.5

CVE-2020-3935 json

TAIWAN SECOM CO., LTD. – Sensitivity Information Exposure

published 6y ago modified 4mo ago also EUVD-2020-25200

cvss
7.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.9%
EPSS 0.9% chance of exploitation in 30 days, percentile 60%
public exploits
0
none known

Summary

TAIWAN SECOM CO., LTD., a Door Access Control and Personnel Attendance Management system, stores users’ information by cleartext in the cookie, which divulges password to attackers.

Patch / fix

  • secom dr.id_attendance_system 3.3.0.3_20160517

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Exploit prediction

0.93% chance of exploitation in the next 30 days, higher than 60% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
CNA 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
NVD 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:P/I:N/A:N

Affected products

  • TAIWAN SECOM CO., LTD. Door Access Control system
  • TAIWAN SECOM CO., LTD. Personnel Attendance system

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.