How severe is CVE-2019-17506?

CVE-2019-17506 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-2019-17506 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 57% (99th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-17506?

CVE-2019-17506 primarily affects Dlink Dir-868l B1 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-2019-17506?

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-2019-17506 published?

CVE-2019-17506 was published on 2019-10-11 and last updated on 2026-06-17.

CVE-2019-17506

CVE-2019-17506 is a critical-severity vulnerability in Dlink Dir-868l B1 Firmware with a CVSS 3.x base score of 9.8. Its EPSS exploit-prediction score of 57% places it in the 99th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-306.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 10.0
EPSS exploit prediction: 57% (99th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-306
Affected product: Dlink Dir-868l B1 Firmware
Published: 2019-10-11
Last modified: 2026-06-17

Description

There are some web interfaces without authentication requirements on D-Link DIR-868L B1-2.03 and DIR-817LW A1-1.04 routers. An attacker can get the router's username and password (and other information) via a DEVICE.ACCOUNT value for SERVICES in conjunction with AUTHORIZED_GROUP=1%0a to getcfg.php. This could be used to control the router remotely.

Frequently asked questions

What is CVE-2019-17506?: There are some web interfaces without authentication requirements on D-Link DIR-868L B1-2.03 and DIR-817LW A1-1.04 routers. An attacker can get the router's username and password (and other information) via a DEVICE.ACCOUNT value for SERVICES in conjunction with AUTHORIZED_GROUP=1%0a to getcfg.php. This could be used to control the router remotely.
How severe is CVE-2019-17506?: CVE-2019-17506 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-2019-17506 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 57% (99th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-17506?: CVE-2019-17506 primarily affects Dlink Dir-868l B1 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-2019-17506?: 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-2019-17506 published?: CVE-2019-17506 was published on 2019-10-11 and last updated on 2026-06-17.

References

https://github.com/dahua966/Routers-vuls/blob/master/DIR-868/name%26passwd.py

Affected products (2)

cpe:2.3:o:dlink:dir-868l_b1_firmware:2.03:*:*:*:*:*:*:*
cpe:2.3:o:dlink:dir-817lw_a1_firmware:1.04:*:*:*:*:*:*:*

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