How severe is CVE-2019-19824?

CVE-2019-19824 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2019-19824 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 25% (98th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-19824?

CVE-2019-19824 primarily affects Totolink A3002ru Firmware. In total, 8 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2019-19824?

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-2019-19824 published?

CVE-2019-19824 was published on 2020-01-27 and last updated on 2026-06-17.

CVE-2019-19824

CVE-2019-19824 is a high-severity vulnerability in Totolink A3002ru Firmware with a CVSS 3.x base score of 8.8. Its EPSS exploit-prediction score of 25% places it in the 98th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-78.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v2: 9.0
EPSS exploit prediction: 25% (98th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-78
Affected product: Totolink A3002ru Firmware
Published: 2020-01-27
Last modified: 2026-06-17

Description

On certain TOTOLINK Realtek SDK based routers, an authenticated attacker may execute arbitrary OS commands via the sysCmd parameter to the boafrm/formSysCmd URI, even if the GUI (syscmd.htm) is not available. This allows for full control over the device's internals. This affects A3002RU through 2.0.0, A702R through 2.1.3, N301RT through 2.1.6, N302R through 3.4.0, N300RT through 3.4.0, N200RE through 4.0.0, N150RT through 3.4.0, N100RE through 3.4.0, and N302RE 2.0.2.

Frequently asked questions

What is CVE-2019-19824?: On certain TOTOLINK Realtek SDK based routers, an authenticated attacker may execute arbitrary OS commands via the sysCmd parameter to the boafrm/formSysCmd URI, even if the GUI (syscmd.htm) is not available. This allows for full control over the device's internals. This affects A3002RU through 2.0.0, A702R through 2.1.3, N301RT through 2.1.6, N302R through 3.4.0, N300RT through 3.4.0, N200RE through 4.0.0, N150RT through 3.4.0, N100RE through 3.4.0, and N302RE 2.0.2.
How severe is CVE-2019-19824?: CVE-2019-19824 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2019-19824 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 25% (98th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-19824?: CVE-2019-19824 primarily affects Totolink A3002ru Firmware. In total, 8 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2019-19824?: 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-2019-19824 published?: CVE-2019-19824 was published on 2020-01-27 and last updated on 2026-06-17.

References

Affected products (8)

cpe:2.3:o:totolink:a3002ru_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:totolink:a702r_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:totolink:n301rt_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:totolink:n302r_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:totolink:n300rt_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:totolink:n200re_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:totolink:n150rt_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:totolink:n100re_firmware:*:*:*:*:*:*:*:*

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