CVE-2018-19987

Exp

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.

Published: 2019-05-13 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2018-19987 is rated High Exploit Risk (86.5/100): CVSS Critical severity, with high exploitation likelihood (EPSS 81.83%, 99th percentile). 1 public exploit reference(s) are indexed (Exploit-DB). Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2018-19987

EDB-ID Source Kind Published Link
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2018-19987

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2025-11-21 84.25% 81.83% -2.42%
2 2025-11-18 81.83% 84.25% +2.42%
3 2025-08-17 — 81.83% —

Full EPSS history (19 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2018-19987

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
9.8 3.0 CRITICAL
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 3.9 5.9 [email protected]
10.0 2.0 HIGH
AV:N/AC:L/Au:N/C:C/I:C/A:C Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:C)
Complete confidentiality impact.
Integrity impact (I:C)
Complete integrity impact.
Availability impact (A:C)
Complete availability impact.
 10.0 10.0 [email protected]

Weakness enumeration for CVE-2018-19987

Affected software / configurations for CVE-2018-19987

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

References for CVE-2018-19987

cvelogic Threat Intelligence