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CVE-2021-46315

34
FAUCET Score

CVE-2021-46315 is a critical Remote Command Execution (RCE) vulnerability affecting D-Link DIR-846 routers. Attackers can exploit this flaw by injecting shell metacharacters like backslashes or backticks into the ssid0 or ssid1 parameters of the HNAP1/control/SetWizardConfig.php page, leading to arbitrary command execution. With a CVSS score of 9.8, this vulnerability is easily exploitable over the network with no authentication or user interaction required, allowing for complete compromise of confidentiality, integrity, and availability. While no public exploits or active exploitation are currently reported, the high FAUCET Risk Score of 95/100 indicates significant potential for future exploitation.

Impacted Technologies

VendorProductVersion(s)CPE
100a43CPE matchmatch criteria
cpe:2.3:o:dlink:dir-846_firmware:100a43:*:*:*:*:*:*:*
100a53dlaCPE matchmatch criteria
cpe:2.3:o:dlink:dir-846_firmware:100a53dla:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.8CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
6.57%
Probability of exploitation in next 30 days
EPSS Percentile
93.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0657 is in the 88th percentile among its peer group of 36,862 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

github.com / doudoudedi/DIR-846_Command_Injection/blob/main/DIR-846_Command_Injection1.md
ExploitThird Party Advisory
dlink.com / en/security-bulletin
Vendor Advisory