CVE-2021-28143: dlink dir-841_firmware OS Command Injection
CVSS: 8.0v3.1HighModified
Published 11-03-2021Last modified 03-08-2024
Vulnerability summary
CVE-2021-28143 is a high (CVSS 8.0) OS Command Injection vulnerability in dlink dir-841_firmware. EPSS estimates a 47.32% chance of exploitation in the next 30 days, higher than 98.8% of scored vulnerabilities. 1 public exploit is recorded.
CVSS score
8.0/10
010
High · v3.1 (NVD)EPSS score
47.32%
0%100%
High · +1.62 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1github
Timeline
- 11-03-2021PublishedVulnerability first disclosed.
- 03-08-2024Last modifiedVulnerability information updated.
Description
/jsonrpc on D-Link DIR-841 3.03 and 3.04 devices allows authenticated command injection via ping, ping6, or traceroute (under System Tools).
CVSS metrics
2 scores · 1 source · 2 versionsHigh 8.0Preferred score · NVD (NIST)
CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HSourcesSingle source
High 7.7Preferred score · NVD (NIST)
AV:A/AC:L/Au:S/C:C/I:C/A:CSourcesSingle source
EPSS trend
Probability
47.32%
Chance of exploitation in the next 30 days
Percentile
99%
Versus all other CVEs
30-day change
+1.62 pp
From 45.71% on 19-09-2026
19-09-202619-10-2026
EPSS score47.32%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundAdvisories
Maturity: poc
Weaknesses
CWE · root causeAffected systems
Dlink1 product
- dir-841_firmware3.03 | 3.04
1 vendor · 1 product
References
2 links- supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10207X Refsource MISCPatchVendor Advisory
- github.com/vitorespf/Advisories/blob/master/DLINK-DIR-841-command-injection.txtX Refsource MISCExploitThird Party Advisory