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CVE-2022-30521

38
FAUCET Score

CVE-2022-30521 is a critical stack-based buffer overflow vulnerability affecting D-Link DIR-890L Wi-Fi router firmware versions up to DIR890LA1_FW107b09. This flaw allows unauthenticated attackers to execute arbitrary code by sending a specially crafted payload to port 49152 on the LAN-side web configuration interface. With a CVSS score of 9.8 (Critical), successful exploitation grants full confidentiality, integrity, and availability impact. While there is no evidence of active exploitation or public exploit code (Metasploit, Nuclei, ExploitDB), the vulnerability has garnered significant community discussion, indicating awareness and potential for future exploitation.

Impacted Technologies

VendorProductVersion(s)CPE
<= 1.07b09CPE matchmatch criteria
cpe:2.3:o:dlink:dir-890l_firmware:*:*:*:*:*:*:*:*

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
13.64%
Probability of exploitation in next 30 days
EPSS Percentile
96.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.1364 is in the 92nd percentile among its peer group of 36,897 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 / winmt/CVE/blob/main/DIR-890L/README.md
ExploitThird Party Advisory
github.com / winmt/my-vuls/tree/main/DIR-890L
dlink.com / en/security-bulletin
Vendor Advisory