CVE-2018-6212
On D-Link DIR-620 devices with a certain customized (by ISP) variant of firmware 1.0.3, 1.0.37, 1...
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.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- Required
What an attacker can affect
- Confidentiality
- Low
- Integrity
- Low
- Availability
- None
Exploit likelihood
What each source reports
NVD Score used
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.
- Record
CVE-2018-6212- CVSS 3.0
- 6.1 Medium
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N - CVSS 2.0
- 4.3 Medium
AV:N/AC:M/Au:N/C:N/I:P/A:N - Weakness
- CWE-79
- Updated
- 2026-11-02
CVE List No score
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.
- Record
CVE-2018-6212- Updated
- 2026-11-02
EUVDEUVD-2018-17973 No score
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.
- Record
EUVD-2018-17973- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-x3w4-f7g4-5q46
On D-Link DIR-620 devices with a certain customized (by ISP) variant of firmware 1.0.3, 1.0.37, 1...
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.
- Record
GHSA-x3w4-f7g4-5q46- CVSS 3.0
- 6.1 Medium
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N - Weakness
- CWE-79
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2018-6212 is a medium vulnerability (CVSS 6.1) in D-link Dir-620 Firmware, published June 20, 2018. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.73%, the 77th percentile. No source names a fixed version.
References
securityaffairs.co/wordpress/72839/hacking/d-link-dir-620-flaws.html
bleepingcomputer.com/news/security/backdoor-account-found-in-d-link-dir-620-routers
securelist.com/backdoors-in-d-links-backyard/85530
securitynewspaper.com/2018/05/25/d-link-dir-620-routers-critical-vulnerabilities
nvd.nist.gov/vuln/detail/CVE-2018-6212
github.com/advisories/GHSA-x3w4-f7g4-5q46