CVE-2021-46319 json
Remote Code Execution (RCE) vulnerability exists in D-Link Router DIR-846 DIR846A1_FW100A43.bin and DIR846enFW100A53DLA-Retail.bin.
published 2022-02-17 4 y ago modified 2026-06-17 4 mo ago also EUVD-2021-33008
- cvss
- 9.8
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 6.6%
- EPSS 6.6% chance of exploitation in 30 days, percentile 93%
- public exploits
- 0
- none known
Summary
Remote Code Execution (RCE) vulnerability exists in D-Link Router DIR-846 DIR846A1_FW100A43.bin and DIR846enFW100A53DLA-Retail.bin. Malicious users can use this vulnerability to use "\ " or backticks to bypass the shell metacharacters in the ssid0 or ssid1 parameters to execute arbitrary commands.This vulnerability is due to the fact that CVE-2019-17509 is not fully patched and can be bypassed by using line breaks or backticks on its basis.
Exploit prediction
6.57% chance of exploitation in the next 30 days, higher than 93% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- github.com https://github.com/doudoudedi/DIR-846_Command_Injection/blob/main/DIR-846_Command_Injection1.md referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 10.0 | AV:N/AC:L/Au:N/C:C/I:C/A:C |
Classification
- Weakness
-
- CWE-78 Improper Neutralization of Special Elements used in an OS Command
References
-
github.com
/doudoudedi/DIR-846_Command_Injection/blob/main/DIR-846_Command_Injection1.md
exploit, third-party-advisory
-
dlink.com
/en/security-bulletin/
vendor-advisory
Sources
- CVE List CVE-2021-46319
- NVD CVE-2021-46319
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.