How severe is CVE-2020-3935?

CVE-2020-3935 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2020-3935 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (56th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-3935?

CVE-2020-3935 primarily affects Secom Dr.id Access Control. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2020-3935?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2020-3935 published?

CVE-2020-3935 was published on 2020-02-11 and last updated on 2026-06-17.

CVE-2020-3935

CVE-2020-3935 is a high-severity vulnerability in Secom Dr.id Access Control with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-312.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 1% (56th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-312
Affected product: Secom Dr.id Access Control
Published: 2020-02-11
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is CVE-2020-3935?: 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.
How severe is CVE-2020-3935?: CVE-2020-3935 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2020-3935 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (56th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-3935?: CVE-2020-3935 primarily affects Secom Dr.id Access Control. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2020-3935?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2020-3935 published?: CVE-2020-3935 was published on 2020-02-11 and last updated on 2026-06-17.

References

Affected products (2)

cpe:2.3:a:secom:dr.id_access_control:3.3.2:*:*:*:*:*:*:*
cpe:2.3:a:secom:dr.id_attendance_system:*:*:*:*:*:*:*:*

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