CVE-2020-25079
HighExploitedPublic exploitAn issue was discovered on D-Link DCS-2530L before 1.06.01 Hotfix and DCS-2670L through 2.02 devices.
Published Sep 2, 2020 · Updated Nov 7, 2025
Key Facts
Patch immediately- CVE-2020-25079 is a high-severity vulnerability (CVSS 8.8 v3.1) affecting Dcs-2530l Firmware (Dlink), Dcs-2670l Firmware (Dlink), Dcs-4603 Firmware (Dlink) and 6 more products.
- It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Aug 5, 2025. Public exploit code is available.
- EPSS estimates a 54% probability of exploitation in the next 30 days.
- Fixed versions are available, including Dcs-2530l Firmware <=1.05.05, Dcs-2670l Firmware 2.03.00, Dcs-4603 Firmware 1.04.02.
- Brandefense priority: patch immediately, because it is listed as exploited in the wild.
CVSS v3.1
8.8
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS (30-day exploit likelihood)
54%
Higher than 98.9% of all scored CVEs
Exploited in the wild
Yes
4 catalog listings
Public exploit code
Available
Proof-of-concept or weaponized module
Get the full CVE-2020-25079 brief as a PDF
Every affected product and fixed release, exploitation status and a first 24 hours response checklist, emailed within minutes.
Description
An issue was discovered on D-Link DCS-2530L before 1.06.01 Hotfix and DCS-2670L through 2.02 devices. cgi-bin/ddns_enc.cgi allows authenticated command injection.
Known-Exploited Catalog Listings
| Catalog | Added | Remediation due | Ransomware use |
|---|---|---|---|
| CISA KEV | Aug 5, 2025 | Aug 26, 2025 | Not reported |
| Industry KEV feed | Aug 5, 2025 | Aug 26, 2025 | Not reported |
| CIRCL KEV | Aug 5, 2025 | Aug 26, 2025 | Not reported |
| ENISA EUVD | Aug 5, 2025 | n/a | Not reported |
Required action: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Affected Products
9 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| Dcs-2530l FirmwareDlink | See advisory | 1.05.05 |
| Dcs-2670l FirmwareDlink | See advisory | 2.03.00 |
| Dcs-4603 FirmwareDlink | See advisory | 1.04.02 |
| Dcs-4622 FirmwareDlink | See advisory | 2.01.10 |
| Dcs-4701e FirmwareDlink | See advisory | 2.03.01 |
Patched Releases
Dcs-2530l Firmware
<=1.05.05
Dcs-2670l Firmware
2.03.00
Dcs-4603 Firmware
1.04.02
Dcs-4622 Firmware
2.01.10
Dcs-4701e Firmware
2.03.01
Dcs-4703e Firmware
1.03.04
Dcs-4705e Firmware
1.03.02
Dcs-4802e Firmware
2.01.01
Timeline
Publicly disclosed
Sep 2, 2020
Added to CISA KEV
Aug 5, 2025
Added to Industry KEV feed
Aug 5, 2025
Added to CIRCL KEV
Aug 5, 2025
Added to ENISA EUVD
Aug 5, 2025
Last updated
Nov 7, 2025
Weakness Type
- CWE-77 Improper Neutralization of Special Elements used in a Command ('Command Injection')
References
- patchhttps://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10180
- exploithttps://twitter.com/Dogonsecurity/status/1271265152118259712
- exploitVulnCheck exploitation report
- exploitVulnCheck exploitation report
- exploitVulnCheck exploitation report
FAQ
Common Questions.
An issue was discovered on D-Link DCS-2530L before 1.06.01 Hotfix and DCS-2670L through 2.02 devices.
Affected: Dcs-2530l Firmware (Dlink); Dcs-2670l Firmware (Dlink); Dcs-4603 Firmware (Dlink), among others. The full list is in the CVE brief.
It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Aug 5, 2025.
Yes. It was added on Aug 5, 2025 with a federal remediation due date of Aug 26, 2025.
Public exploit code is available.
Fixed versions are available, including Dcs-2530l Firmware <=1.05.05, Dcs-2670l Firmware 2.03.00, Dcs-4603 Firmware 1.04.02.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.
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