How severe is CVE-2018-19987?

CVE-2018-19987 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-2018-19987 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 13% (96th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-19987?

CVE-2018-19987 primarily affects D-link Dir-818lw Firmware. In total, 7 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2018-19987?

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-2018-19987 published?

CVE-2018-19987 was published on 2019-05-13 and last updated on 2026-06-17.

CVE-2018-19987

CVE-2018-19987 is a critical-severity vulnerability in D-link Dir-818lw Firmware with a CVSS 3.x base score of 9.8. Its EPSS exploit-prediction score of 13% places it in the 96th 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: 13% (96th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-78
Affected product: D-link Dir-818lw Firmware
Published: 2019-05-13
Last modified: 2026-06-17

Description

D-Link DIR-822 Rev.B 202KRb06, DIR-822 Rev.C 3.10B06, DIR-860L Rev.B 2.03.B03, DIR-868L Rev.B 2.05B02, DIR-880L Rev.A 1.20B01_01_i3se_BETA, and DIR-890L Rev.A 1.21B02_BETA devices mishandle IsAccessPoint in /HNAP1/SetAccessPointMode. In the SetAccessPointMode.php source code, the IsAccessPoint parameter is saved in the ShellPath script file without any regex checking. After the script file is executed, the command injection occurs. A vulnerable /HNAP1/SetAccessPointMode XML message could have shell metacharacters in the IsAccessPoint element such as the `telnetd` string.

Frequently asked questions

What is CVE-2018-19987?: D-Link DIR-822 Rev.B 202KRb06, DIR-822 Rev.C 3.10B06, DIR-860L Rev.B 2.03.B03, DIR-868L Rev.B 2.05B02, DIR-880L Rev.A 1.20B01_01_i3se_BETA, and DIR-890L Rev.A 1.21B02_BETA devices mishandle IsAccessPoint in /HNAP1/SetAccessPointMode. In the SetAccessPointMode.php source code, the IsAccessPoint parameter is saved in the ShellPath script file without any regex checking. After the script file is executed, the command injection occurs. A vulnerable /HNAP1/SetAccessPointMode XML message could have shell metacharacters in the IsAccessPoint element such as the `telnetd` string.
How severe is CVE-2018-19987?: CVE-2018-19987 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-2018-19987 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 13% (96th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-19987?: CVE-2018-19987 primarily affects D-link Dir-818lw Firmware. In total, 7 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2018-19987?: 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-2018-19987 published?: CVE-2018-19987 was published on 2019-05-13 and last updated on 2026-06-17.

References

https://github.com/pr0v3rbs/CVE/tree/master/CVE-2018-19986%20-%2019990

Affected products (7)

cpe:2.3:o:d-link:dir-818lw_firmware:2.05.b03:*:*:*:*:*:*:*
cpe:2.3:o:d-link:dir-822_firmware:202krb06:*:*:*:*:*:*:*
cpe:2.3:o:dlink:dir-822_firmware:3.10b06:*:*:*:*:*:*:*
cpe:2.3:o:d-link:dir-860l_firmware:2.03.b03:*:*:*:*:*:*:*
cpe:2.3:o:d-link:dir-868l_firmware:2.05b02:*:*:*:*:*:*:*
cpe:2.3:o:d-link:dir-880l_firmware:1.20b01_01_i3se:beta:*:*:*:*:*:*
cpe:2.3:o:d-link:dir-890l\/r_firmware:1.21b02:beta:*:*:*:*:*:*

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