CVE-2020-25079
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.
do firstApply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Can a WAF block it? Partly. Command injection puts shell syntax into the request. WAF rules catch common shell commands but miss encoded or unusual payloads.
Also consider: input validation · RASP
Based on the weakness type only; no CVE-specific evidence yet. We check Cloudflare, AWS, Google Cloud Armor and Azure; for Akamai, Imperva, Fastly, F5, ask your vendor.
Is CVE-2020-25079 being exploited?
Yes. CVE-2020-25079 appears in CISA's Known Exploited Vulnerabilities catalog, which means exploitation in the wild has been confirmed and reported. Treat it as active rather than theoretical, and patch it ahead of higher-scoring vulnerabilities that carry no exploitation evidence.
How severe is CVE-2020-25079?
CVE-2020-25079 is rated High with a CVSS score of 8.8. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2020-25079?
Yes. A fix has been recorded for CVE-2020-25079. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2020-25079 affect?
CVE-2020-25079 affects dlink:dcs-4703e_firmware, dlink:dcs-4705e_firmware, dlink:dcs-4802e_firmware, dlink:dcs-p703_firmware, and 5 further products or versions. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
cisa ssvc
- exploitation
- active
- automatable
- no
- technical impact
- total
Assessed by CISA 5 Aug 2025 (SSVC 2.0.3).
timeline
- 2 Sept 2020Published
- 5 Aug 2025Added to CISA KEV (exploited in the wild) · 1,797 days (about 5 years) later
- 5 Aug 2025CISA SSVC assessment: exploitation active · same day later
- 26 Aug 2025CISA remediation due date (US federal agencies) · 21 days later
- 21 Oct 2025CVE record last updated · 57 days later
- 2 Nov 2026Analysed by vulneraibility.com · 377 days (about 1 year) later
- Linksupportannouncement.us.dlink.com /announcement/publication.aspx?name=SAP10180
- Linktwitter.com /Dogonsecurity/status/1271265152118259712
- Linksupport.dlink.com /productinfo.aspx?m=DCS-2530L
- Linkcisa.gov /known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-25079
sources
- CVE List (CVE.org): description, affected versions, references; CVE Terms of Use
- NVD: CVSS and CPE data
- CISA KEV catalog: exploitation, date added, due date
- CISA Vulnrichment (ADP): SSVC decision points
- FIRST EPSS: exploit probability and percentile
- Summary, impact and triage tags: written by our AI analysis pipeline from the sources above. Check them against the sources.