How severe is CVE-2020-3934?

CVE-2020-3934 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2020-3934 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (69th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-3934?

CVE-2020-3934 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-2020-3934?

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

When was CVE-2020-3934 published?

CVE-2020-3934 was published on 2020-02-11 and last updated on 2026-06-17.

CVE-2020-3934

CVE-2020-3934 is a critical-severity vulnerability in Secom Dr.id Access Control with a CVSS 3.x base score of 9.8. 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-89.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 1% (69th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-89
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, contains a vulnerability of Pre-auth SQL Injection, allowing attackers to inject a specific SQL command.

Frequently asked questions

What is CVE-2020-3934?: TAIWAN SECOM CO., LTD., a Door Access Control and Personnel Attendance Management system, contains a vulnerability of Pre-auth SQL Injection, allowing attackers to inject a specific SQL command.
How severe is CVE-2020-3934?: CVE-2020-3934 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2020-3934 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (69th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-3934?: CVE-2020-3934 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-2020-3934?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2020-3934 published?: CVE-2020-3934 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:*:*:*:*:*:*:*:*
cpe:2.3:a:secom:dr.id_attendance_system:*:*:*:*:*:*:*:*

More vulnerabilities in Secom Dr.id Access Control

CVE-2024-7731 — Critical (CVSS 9.8): Dr.ID Access Control System from SECOM does not properly validate a specific page parameter, allowing unauthenticated…
CVE-2021-35961 — Critical (CVSS 9.8): Dr. ID Door Access Control and Personnel Attendance Management system uses the hard-code admin default credentials that…
CVE-2020-3935 — High (CVSS 7.5): TAIWAN SECOM CO., LTD., a Door Access Control and Personnel Attendance Management system, stores users’ information…
CVE-2022-26671 — High (CVSS 7.3): Taiwan Secom Dr.ID Access Control system’s login page has a hard-coded credential in the source code. An…
CVE-2020-3933 — Medium (CVSS 5.3): TAIWAN SECOM CO., LTD., a Door Access Control and Personnel Attendance Management system, allows attackers to enumerate…

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