CVE-2018-6211: d-link dir-620_firmware OS Command Injection
CVSS: 9.0v2.0HighModified
Published 20-06-2018Last modified 05-08-2024
Vulnerability summary
CVE-2018-6211 is a high (CVSS 9.0) OS Command Injection vulnerability in d-link dir-620_firmware. EPSS estimates a 5.77% chance of exploitation in the next 30 days, higher than 93% of scored vulnerabilities. 1 public exploit is recorded.
CVSS score
9.0/10
010
High · v2.0 (NVD)EPSS score
5.77%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1reference
Timeline
- 20-06-2018PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
Description
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, OS command injection is possible as a result of incorrect processing of the res_buf parameter to index.cgi.
CVSS metrics
2 scores · 1 source · 2 versionsHigh 7.2Preferred score · NVD (NIST)
CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:HSourcesSingle source
High 9.0Preferred score · NVD (NIST)
AV:N/AC:L/Au:S/C:C/I:C/A:CSourcesSingle source
EPSS trend
Probability
5.77%
Chance of exploitation in the next 30 days
Percentile
93%
Versus all other CVEs
30-day change
0.00 pp
From 5.77% on 20-09-2026
20-09-202620-10-2026
EPSS score5.77%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundExploit Reference (securelist.com)
Maturity: unknown
Weaknesses
CWE · root causeAffected systems
D-link1 product
- dir-620_firmware1.0.3 | 1.0.37 | 1.3.1 | 1.3.3 | 1.3.7 | 1.4.0 | 2.0.22
1 vendor · 1 product
References
4 links- securityaffairs.co/wordpress/72839/hacking/d-link-dir-620-flaws.htmlX Refsource MISCThird Party Advisory
- www.bleepingcomputer.com/news/security/backdoor-account-found-in-d-link-dir-620-routers/X Refsource MISCThird Party Advisory
- www.securitynewspaper.com/2018/05/25/d-link-dir-620-routers-critical-vulnerabilities/X Refsource MISCThird Party Advisory