How severe is CVE-2020-28973?

CVE-2020-28973 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-2020-28973 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (58th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-28973?

CVE-2020-28973 affects Abus Secvest Wireless Alarm System Fuaa50000 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-28973?

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-2020-28973 published?

CVE-2020-28973 was published on 2021-04-21 and last updated on 2026-06-17.

CVE-2020-28973

CVE-2020-28973 is a high-severity vulnerability in Abus Secvest Wireless Alarm System Fuaa50000 Firmware 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-287.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 1% (58th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-287
Affected product: Abus Secvest Wireless Alarm System Fuaa50000 Firmware
Published: 2021-04-21
Last modified: 2026-06-17

Description

The ABUS Secvest wireless alarm system FUAA50000 (v3.01.17) fails to properly authenticate some requests to its built-in HTTPS interface. Someone can use this vulnerability to obtain sensitive information from the system, such as usernames and passwords. This information can then be used to reconfigure or disable the alarm system.

Frequently asked questions

What is CVE-2020-28973?: The ABUS Secvest wireless alarm system FUAA50000 (v3.01.17) fails to properly authenticate some requests to its built-in HTTPS interface. Someone can use this vulnerability to obtain sensitive information from the system, such as usernames and passwords. This information can then be used to reconfigure or disable the alarm system.
How severe is CVE-2020-28973?: CVE-2020-28973 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-2020-28973 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (58th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-28973?: CVE-2020-28973 affects Abus Secvest Wireless Alarm System Fuaa50000 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-28973?: 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-2020-28973 published?: CVE-2020-28973 was published on 2021-04-21 and last updated on 2026-06-17.

References

https://eye.security/en/blog/breaking-abus-secvest-internet-connected-alarm-systems-cve-2020-28973

Affected products (1)

cpe:2.3:o:abus:secvest_wireless_alarm_system_fuaa50000_firmware:3.01.17:*:*:*:*:*:*:*

More vulnerabilities in Abus Secvest Wireless Alarm System Fuaa50000 Firmware

CVE-2019-9863 — Critical (CVSS 9.8): Due to the use of an insecure algorithm for rolling codes in the ABUS Secvest wireless alarm system FUAA50000 3.01.01…
CVE-2019-9861 — High (CVSS 8.1): Due to the use of an insecure RFID technology (MIFARE Classic), ABUS proximity chip keys (RFID tokens) of the ABUS…
CVE-2019-14261 — High (CVSS 7.5): An issue was discovered on ABUS Secvest FUAA50000 3.01.01 devices. Due to an insufficient implementation of jamming…
CVE-2019-9860 — High (CVSS 7.5): Due to unencrypted signal communication and predictability of rolling codes, an attacker can "desynchronize" an ABUS…
CVE-2019-9862 — Medium (CVSS 6.5): An issue was discovered on ABUS Secvest wireless alarm system FUAA50000 3.01.01 in conjunction with Secvest remote…

All CVEs affecting Abus Secvest Wireless Alarm System Fuaa50000 Firmware →

Other CWE-287 (Improper Authentication) vulnerabilities

CVE-2026-45480 — Critical (CVSS 10.0): Improper authentication in Azure Active Directory allows an unauthorized attacker to elevate privileges over a network.
CVE-2026-46389 — Critical (CVSS 10.0): UDS Identity Config builds the Keycloak configuration image (realm, plugins, theme, truststore, JARs) consumed by UDS…
CVE-2026-10611 — Critical (CVSS 10.0): An authentication bypass vulnerability exists in MISP when LDAP mixed authentication is enabled with OTP enforcement.…
CVE-2026-47280 — Critical (CVSS 10.0): Improper authentication in Azure Resource Manager (ARM) allows an unauthorized attacker to elevate privileges over a…
CVE-2026-42822 — Critical (CVSS 10.0): Improper authentication in Azure Local Disconnected Operations allows an unauthorized attacker to elevate privileges…
CVE-2026-20182 — Critical (CVSS 10.0): May 2026: This security advisory provides the details and fix information for a vulnerability that was discovered and…

Browse all CWE-287 (Improper Authentication) vulnerabilities →