How severe is CVE-2019-9659?

CVE-2019-9659 has a CVSS 3.x base score of 9.1, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability high.

Is CVE-2019-9659 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (68th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-9659?

CVE-2019-9659 primarily affects Chuango Wifi Alarm System Firmware. In total, 11 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2019-9659?

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-2019-9659 published?

CVE-2019-9659 was published on 2019-03-11 and last updated on 2026-06-17.

CVE-2019-9659

CVE-2019-9659 is a critical-severity vulnerability in Chuango Wifi Alarm System Firmware with a CVSS 3.x base score of 9.1. 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-294.

Key facts

Severity: Critical (CVSS 3.x base score 9.1)
CVSS v2: 6.4
EPSS exploit prediction: 1% (68th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-294
Affected product: Chuango Wifi Alarm System Firmware
Published: 2019-03-11
Last modified: 2026-06-17

Description

The Chuango 433 MHz burglar-alarm product line uses static codes in the RF remote control, allowing an attacker to arm, disarm, or trigger the alarm remotely via replay attacks, as demonstrated by Chuango branded products, and non-Chuango branded products such as the Eminent EM8617 OV2 Wifi Alarm System.

Frequently asked questions

What is CVE-2019-9659?: The Chuango 433 MHz burglar-alarm product line uses static codes in the RF remote control, allowing an attacker to arm, disarm, or trigger the alarm remotely via replay attacks, as demonstrated by Chuango branded products, and non-Chuango branded products such as the Eminent EM8617 OV2 Wifi Alarm System.
How severe is CVE-2019-9659?: CVE-2019-9659 has a CVSS 3.x base score of 9.1, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability high.
Is CVE-2019-9659 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (68th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-9659?: CVE-2019-9659 primarily affects Chuango Wifi Alarm System Firmware. In total, 11 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2019-9659?: 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-2019-9659 published?: CVE-2019-9659 was published on 2019-03-11 and last updated on 2026-06-17.

References

https://github.com/RiieCco/write-ups/tree/master/CVE-2019-9659

Affected products (11)

cpe:2.3:o:chuango:wifi_alarm_system_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:chuango:wifi\/cellular_smart_home_system_h4_plus_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:chuango:awv_plus_wifi_alarm_system_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:chuango:g5w_3g_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:chuango:g5_plus_gsm\/sms\/rfid_touch_alarm_system_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:chuango:g3_gsm\/sms_alarm_system_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:chuango:b11_dual-network_alarm_system_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:chuango:a8_pstn_alarm_system_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:chuango:a11_pstn\/lcd\/rfid_touch_alarm_system_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:chuango:cg-105s_on-site_alarm_system_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:eminent:em8617_ov2_wifi_alarm_system_firmware:-:*:*:*:*:*:*:*

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