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CVE-2021-46441

44
FAUCET Score

CVE-2021-46441 is a critical command injection vulnerability affecting D-Link DIR-825 G1 routers, specifically within the "webupg" binary. This flaw allows authenticated attackers to execute arbitrary system commands due to insufficient parameter validation. With a CVSS score of 8.8 (High), it presents a significant risk, enabling complete compromise of confidentiality, integrity, and availability. While the vulnerability requires prior authentication, its network-based attack vector and low complexity make it a serious threat. Currently, there is no evidence of active exploitation, and public exploit code or significant community discussion is absent, suggesting it is not widely known or exploited in the wild.

Impacted Technologies

VendorProductVersion(s)CPE
Range not provided by sourceCPE matchmatch criteria
cpe:2.3:o:dlink:dir-825_firmware:-:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

8.8HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
32.59%
Probability of exploitation in next 30 days
EPSS Percentile
98.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.3259 is in the 97th percentile among its peer group of 17,823 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.3 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

github.com / tgp-top/D-Link-DIR-825
ExploitThird Party Advisory
dlink.com / en/security-bulletin
Vendor Advisory