CVE-2020-25079: D-Link DCS-2530L and DCS-2670L Command Injection Vulnerability
- Is it exploited?
Yes. CISA added it to the Known Exploited Vulnerabilities catalog on 5 Aug 2025, 1,798 days after the CVE record was published.
- How likely is exploitation in the next 30 days?
- 54%
EPSS score, percentile 99 of all scored records
- How severe?
- 8.8 High
CVSS v3.1 base score, from CISA's enrichment of the record
- What should I do?
CISA deadline 26 Aug 2025. Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
The CVE record links no vendor advisory, patch or mitigation.
- Which versions are affected?
Not stated. The CVE record gives vendor and product as “n/a” and the version as “unspecified”.
Source: CISA Known Exploited Vulnerabilities (KEV) catalog, 2026.10.28, as of 28 Oct 2026; FIRST Exploit Prediction Scoring System (EPSS), v2026.06.15, as of 28 Oct 2026; CVE List V5 (CVE Program), cve_2026-10-28_0000Z, as of 28 Oct 2026. About the data.
What to do
Required action, set by CISA
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
CISA due date for this action: 26 August 2025.
Advisories and patches
The CVE record links no vendor advisory, patch or mitigation.
Linked from CISA's catalog entry
- https://support.dlink.com/productinfo.aspx?m=DCS-2530L
- https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10180
- https://nvd.nist.gov/vuln/detail/CVE-2020-25079
Affected products and versions
The CVE record does not name affected products or versions: vendor and product are “n/a” and the version is “unspecified”.
Source: CVE List V5 (CVE Program), cve_2026-10-28_0000Z, as of 28 Oct 2026. About the data.
About this vulnerability
D-Link DCS-2530L and DCS-2670L devices contains a command injection vulnerability in the cgi-bin/ddns_enc.cgi. The impacted products could be end-of-life (EoL) and/or end-of-service (EoS). Users should discontinue product utilization.
Summary: CISA's KEV catalog, as of 28 Oct 2026.
- CISA added CVE-2020-25079 to its Known Exploited Vulnerabilities (KEV) catalog on 5 Aug 2025.
- CISA's ransomware flag for this entry is "Unknown": no evidence of ransomware use in the catalog, which is not proof of none.
- The due date CISA sets for the required action is 26 Aug 2025.
- The CVE record was published on 2 Sep 2020, 1,798 days before it was added to KEV.
- The CVE record carries a CVSS v3.1 base score of 8.8 (High), taken from CISA's enrichment of the record.
- FIRST's EPSS model puts the probability of exploitation in the next 30 days at 54% (percentile 99), as of 28 Oct 2026.
- CISA's SSVC assessment in the CVE record: exploitation active, automatable no, technical impact total.
Source: CISA Known Exploited Vulnerabilities (KEV) catalog, 2026.10.28, as of 28 Oct 2026; CVE List V5 (CVE Program), cve_2026-10-28_0000Z, as of 28 Oct 2026; FIRST Exploit Prediction Scoring System (EPSS), v2026.06.15, as of 28 Oct 2026. About the data.
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.
Source: CVE List V5 (CVE Program), cve_2026-10-28_0000Z, as of 28 Oct 2026. About the data.
Weakness
- CWE-77: Improper Neutralization of Special Elements used in a Command ('Command Injection')
CWE and CAPEC are maintained by MITRE; the entries are those named in the CVE record and the KEV entry.
Timeline
| Date | Event |
|---|---|
| 2 Sep 2020 | CVE record published |
| 5 Aug 2025 | Added to CISA KEV |
| 26 Aug 2025 | CISA due date for the required action |
| 21 Oct 2025 | CVE record last updated |
References
More exploited D-Link vulnerabilities
- CVE-2025-29635: D-Link DIR-823X Command Injection Vulnerability
- CVE-2022-37055: D-Link Routers Buffer Overflow Vulnerability
- CVE-2020-25078: D-Link DCS-2530L and DCS-2670L Devices Unspecified Vulnerability
- CVE-2022-40799: D-Link DNR-322L Download of Code Without Integrity Check Vulnerability
- CVE-2024-0769: D-Link DIR-859 Router Path Traversal Vulnerability
- CVE-2023-25280: D-Link DIR-820 Router OS Command Injection Vulnerability