CVE-2018-6212

Exp

On D-Link DIR-620 devices with a certain customized (by ISP) variant of firmware 1.0.3, 1.0.37, 1.3.1, 1.3.3, 1.3.7, 1.4.0, and 2.0.22, a reflected Cross-Site Scripting (XSS) attack is possible as a result of missed filtration for special characters in the "Search" field and incorrect processing of the XMLHttpRequest object.

Published: 2018-06-20 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2018-6212 is rated High Exploit Risk (67.1/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 1.76%). 1 public exploit reference(s) are indexed (Exploit-DB). EPSS rose +1.48% over the last day, indicating growing attacker interest. 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-2018-6212

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

Exploit prediction scoring system (EPSS) score for CVE-2018-6212

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 2026-06-15 0.29% 1.76% +1.48%
2 2026-02-05 0.39% 0.29% -0.10%
3 2026-01-04 — 0.39% —

Full EPSS history (10 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2018-6212

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
6.1 3.0 MEDIUM
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N 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:R)
A real person has to do something—click, install, enable—otherwise it doesn’t land.
Scope (S:C)
Breaking this can reach past the original component and bite other resources—bigger blast radius.
Confidentiality (C:L)
Some sensitive info could get out, but not a total data dump.
Integrity (I:L)
Attackers could change some data, but it’s limited—not everything goes.
Availability (A:N)
Service keeps running; no real outage angle.
 2.8 2.7 [email protected]
4.3 2.0 MEDIUM
AV:N/AC:M/Au:N/C:N/I:P/A:N Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:N)
No availability impact.
 8.6 2.9 [email protected]

Weakness enumeration for CVE-2018-6212

Affected software / configurations for CVE-2018-6212

Vendor Product Version Raw CPE
d-link dir-620_firmware 1.0.3 cpe:2.3:o:d-link:dir-620_firmware:1.0.3:*:*:*:*:*:*:*
d-link dir-620_firmware 1.0.37 cpe:2.3:o:d-link:dir-620_firmware:1.0.37:*:*:*:*:*:*:*
d-link dir-620_firmware 1.3.1 cpe:2.3:o:d-link:dir-620_firmware:1.3.1:*:*:*:*:*:*:*
d-link dir-620_firmware 1.3.3 cpe:2.3:o:d-link:dir-620_firmware:1.3.3:*:*:*:*:*:*:*
d-link dir-620_firmware 1.3.7 cpe:2.3:o:d-link:dir-620_firmware:1.3.7:*:*:*:*:*:*:*
d-link dir-620_firmware 1.4.0 cpe:2.3:o:d-link:dir-620_firmware:1.4.0:*:*:*:*:*:*:*
d-link dir-620_firmware 2.0.22 cpe:2.3:o:d-link:dir-620_firmware:2.0.22:*:*:*:*:*:*:*

References for CVE-2018-6212

cvelogic Threat Intelligence