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CVE-2021-46378

52
FAUCET Score

CVE-2021-46378 describes an incorrect access control vulnerability in D-Link DIR-850L routers running ET850-1.08TRb03 firmware, allowing unauthenticated remote configuration downloads. This vulnerability carries a CVSS score of 7.5 (HIGH), indicating it can be exploited remotely with low complexity, requiring no user interaction, and potentially leading to high confidentiality impact. While not in the KEV catalog or actively exploited, public exploit code exists (EDB-50906), and its high FAUCET Risk Score and EPSS percentile suggest a significant potential for future exploitation, despite minimal community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
1.08trb03CPE matchmatch criteria
cpe:2.3:o:dlink:dir-850l_firmware:1.08trb03:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
31.86%
Probability of exploitation in next 30 days
EPSS Percentile
98.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
ExploitDB: EDB-50906 · May 11, 2022
This CVE's current EPSS score of 0.3186 is in the 97th percentile among its peer group of 51,506 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 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

packetstormsecurity.com / files/167042/DLINK-DIR850-Insecure-Direct-Object-Reference.html
ExploitThird Party AdvisoryVDB Entry
drive.google.com / file/d/1S69wOovVa8NRVUXcB0PkVvZHFxREcD4Y/view
ExploitThird Party Advisory
dlink.com / en/security-bulletin
Vendor Advisory