CVE-2021-28143 in the critical feed json
/jsonrpc on D-Link DIR-841 3.03 and 3.04 devices allows authenticated command injection via ping, ping6, or traceroute (under System Tools).
published 2021-03-11 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-14842
- cvss
- 8.0
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 47.3%
- EPSS 47.3% chance of exploitation in 30 days, percentile 98%
- public exploits
- 0
- none known
Summary
/jsonrpc on D-Link DIR-841 3.03 and 3.04 devices allows authenticated command injection via ping, ping6, or traceroute (under System Tools).
Patch / fix
Exploit prediction
47.32% chance of exploitation in the next 30 days, higher than 98% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- github.com https://github.com/vitorespf/Advisories/blob/master/DLINK-DIR-841-command-injection.txt referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 8.0 | CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 7.7 | AV:A/AC:L/Au:S/C:C/I:C/A:C |
Classification
- Weakness
-
- CWE-78 Improper Neutralization of Special Elements used in an OS Command
References
-
supportannouncement.us.dlink.com
/announcement/publication.aspx?name=SAP10207
patch, vendor-advisory
-
github.com
/vitorespf/Advisories/blob/master/DLINK-DIR-841-command-injection.txt
exploit, third-party-advisory
Sources
- CVE List CVE-2021-28143
- NVD CVE-2021-28143
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.