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CVE-2022-28956

42
FAUCET Score

CVE-2022-28956 is a critical vulnerability in the getcfg.php component of D-Link DIR-816L firmware versions, allowing unauthenticated attackers to gain full control of affected devices through a crafted payload. With a CVSS score of 9.8, this vulnerability is easily exploitable over the network with no user interaction, leading to complete compromise of confidentiality, integrity, and availability. While no public exploit code or active exploitation has been observed, its high severity and ease of exploitation warrant immediate patching for all affected D-Link DIR-816L routers.

Impacted Technologies

VendorProductVersion(s)CPE
206b01CPE matchmatch criteria
cpe:2.3:o:dlink:dir-816l_firmware:206b01:*:*:*:*:*:*:*

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
22.37%
Probability of exploitation in next 30 days
EPSS Percentile
97.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.2237 is in the 94th 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 / shijin0925/IOT/blob/master/DIR816/4.md
ExploitThird Party Advisory
dlink.com / en/security-bulletin
Vendor Advisory