CVE-2022-28956Dir-816l Firmware Vulnerability
An issue in the getcfg.php component of D-Link DIR816L_FW206b01 allows attackers to access the device via a crafted payload.
Published May 18, 2022 · Updated Nov 21, 2024
Key Facts
Patch immediately- CVE-2022-28956 is a critical-severity vulnerability (CVSS 9.8 v3.1) affecting Dir-816l Firmware (Dlink).
- It is exploited in the wild, listed in Industry KEV feed since Oct 15, 2025. No public exploit code is known.
- EPSS estimates a 23% probability of exploitation in the next 30 days.
- No fixed version is listed yet; check the vendor advisory for mitigations.
- Brandefense priority: patch immediately, because it is listed as exploited in the wild.
Scores
CVSS v3.1
9.8
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS (30-day exploit likelihood)
23%
Higher than 97.7% of all scored CVEs
Exploit maturity
Proof of concept
ATLAS score
37/100
Publication score, see How it works
Exploitation Verdict
KEV listed
Oct 15, 2025
Federal due date
None
No federal due date
Ransomware use
Not reported
Attributed actors
None named
Exploit & Defence Guidance
Exploit maturity
Proof of concept
Public exploit code
1
Proof-of-concept links
In-the-wild evidence
10
Reports of active use
Advisories And Exploit References
Description
An issue in the getcfg.php component of D-Link DIR816L_FW206b01 allows attackers to access the device via a crafted payload.
Known-Exploited Catalog Listings
| Catalog | Added | Remediation due | Ransomware use |
|---|---|---|---|
| Industry KEV feed | Oct 15, 2025 | n/a | Not reported |
Affected Products
1 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| Dir-816l FirmwareDlink | 206b01 | n/a |
Timeline
Publicly disclosed
May 18, 2022
Last updated
Nov 21, 2024
Added to Industry KEV feed
Oct 15, 2025
References
- advisorydlink.com · security-bulletin
- exploitgithub.com · 4.md
FAQ
Common Questions.
An issue in the getcfg.php component of D-Link DIR816L_FW206b01 allows attackers to access the device via a crafted payload.
Affected: Dir-816l Firmware (Dlink) versions 206b01. The full list is in the CVE brief.
It is exploited in the wild, listed in Industry KEV feed since Oct 15, 2025.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
No public exploit code is known.
No fixed version is listed yet; check the vendor advisory for mitigations.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.
Is CVE-2022-28956 On Your Attack Surface?
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