How severe is CVE-2019-17508?

CVE-2019-17508 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-2019-17508 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 16% (97th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-17508?

CVE-2019-17508 primarily affects Dlink Dir-859 A3 Firmware. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2019-17508?

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-2019-17508 published?

CVE-2019-17508 was published on 2019-10-11 and last updated on 2026-06-17.

CVE-2019-17508

CVE-2019-17508 is a critical-severity vulnerability in Dlink Dir-859 A3 Firmware with a CVSS 3.x base score of 9.8. Its EPSS exploit-prediction score of 16% places it in the 97th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-78.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 10.0
EPSS exploit prediction: 16% (97th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-78
Affected product: Dlink Dir-859 A3 Firmware
Published: 2019-10-11
Last modified: 2026-06-17

Description

On D-Link DIR-859 A3-1.06 and DIR-850 A1.13 devices, /etc/services/DEVICE.TIME.php allows command injection via the $SERVER variable.

Frequently asked questions

What is CVE-2019-17508?: On D-Link DIR-859 A3-1.06 and DIR-850 A1.13 devices, /etc/services/DEVICE.TIME.php allows command injection via the $SERVER variable.
How severe is CVE-2019-17508?: CVE-2019-17508 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-2019-17508 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 16% (97th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-17508?: CVE-2019-17508 primarily affects Dlink Dir-859 A3 Firmware. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2019-17508?: 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-2019-17508 published?: CVE-2019-17508 was published on 2019-10-11 and last updated on 2026-06-17.

References

https://github.com/dahua966/Routers-vuls/tree/master/DIR-859

Affected products (2)

cpe:2.3:o:dlink:dir-859_a3_firmware:1.06:*:*:*:*:*:*:*
cpe:2.3:o:dlink:dir-850l_a_firmware:1.13:*:*:*:*:*:*:*

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