Is CVE-2020-25079 actively exploited?

Yes. Previdian tracks CVE-2020-25079 as a known exploited vulnerability. Confidence is confirmed.

What exploitation activity has Previdian observed?

Previdian has not yet recorded sensor-observed exploitation attempts for CVE-2020-25079. Our sensors continue to monitor for activity targeting this CVE.

Which versions are affected?

Version-level data is not available; Previdian tracks D-Link DCS-2530L, DCS-2670L.

Yes. CVE-2020-25079 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog. Added to Previdian from a trusted third-party report 1 day before CISA listed it.

Vulnerability report

Exploited in the wild Confirmed confidence In CISA KEV

CVE-2020-25079

DCS-2530L Command Injection

D-Link / DCS-2530L

Watch CVE-2020-25079 Browse KEV feed

Severity: CVSS 8.8 · High
Confidence: Confirmed
Exploit status: Exploited in the wild
EPSS: 54.0%
First observed: —
Last observed: —

Decision summary

What security teams need to know first

Direct answers before the deeper technical record.

What it is

CVE-2020-25079 is a vulnerability affecting D-Link DCS-2530L, DCS-2670L. 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...

Is it exploited?

Yes. Previdian tracks this CVE as a known exploited vulnerability. Confidence is confirmed. Listed in CISA KEV. Also confirmed by third-party sources.

Who is affected?

D-Link / DCS-2530L.

What should we do?

Prioritize remediation. Validate affected assets and apply vendor fixes on an accelerated timeline.

Overview

An issue was discovered on D-Link DCS-2530L before 1.06.01 Hotfix and DCS-2670L through 2.02 devices

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.

Published: 02 Sep 2020
Exploitation Reported: 01 Jun 2026
Attack vector: Remote
Complexity: Low
Privileges: Low
User interaction: None

CVE References

CVE Record CVE.org · CVE Record https://www.cve.org/CVERecord?id=CVE-2020-25079
supportannouncement.us.dlink.com/announcement/publication.aspx supportannouncement.us.dlink.com · CVE Record https://supportannouncement.us.dlink.com/announcement/publication.asp...
twitter.com/Dogonsecurity/status/1271265152118259712 twitter.com · CVE Record https://twitter.com/Dogonsecurity/status/1271265152118259712

Exploitation evidence

Why Previdian marks this CVE as exploited

Third-party attestation and first-party sensor observation are shown separately so teams can judge the evidence chain.

Exploited in the wild

CVE

Recorded 01 Jun 2026

A trusted third party reported exploitation.

Known exploited vulnerability sources

Per-source evidence links for KEV attestations are available through the Previdian Pro API.

Learn about Pro API access

Source	Added
CVE First	2026-06-01 10:38 UTC
CISA	2026-06-02 14:06 UTC

Detection

Operational artifacts and observed signals

Make the evidence actionable in scanner, SOC, and edge-control workflows.

Observed signals

Request targets
User-Agents
Callback hosts: 0; 0; 0

Request targets and User-Agents available in Pro. Callback host details available in Enterprise.

Scanner coverage

Nessus template detected 23 May 2026.

View Nessus template

Virtual patch status

No Previdian virtual patch is currently available. Future rules ship for ModSecurity, Cloudflare, and AWS WAF.

Learn about virtual patches →

Scanner Artifacts

Scanner and exploit-framework references linked to this CVE.

Scanner	Reference	Detected
Nessus	https://www.tenable.com/plugins/nessus/316488	23 May 2026

Risk and context

Severity, weaknesses, and research context

CVSS v3.1

8.8 High

Potential damage if exploited. Separate from whether attackers are using it.

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS

54.0%

Estimated chance of exploitation in the next 30 days. Previdian's warning comes from evidence, not this score.

Weaknesses

Improper Neutralization of Special Elements used in a Command ('Command Injection') CWE-77

All CVSS Scores

CVSS v3.1 8.8 High

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS v2.0 9.0 High

AV:N/AC:L/Au:S/C:C/I:C/A:C

Timeline

From disclosure to observed exploitation

02 Jun 2026
14:06 UTC

Added to CISA KEV

Listed in the CISA Known Exploited Vulnerabilities catalog
01 Jun 2026
10:38 UTC

Added to Previdian KEV Feed

High-confidence, third-party attested exploitation
23 May 2026
16:40 UTC

Nessus plugin available

Scanner coverage available
02 Sep 2020
15:33 UTC

CVE published

Vulnerability disclosed publicly
02 Sep 2020
00:00 UTC

CVE ID reserved

Identifier reserved by the CNA

Pro API

Automate this intelligence

Confidence, exploit status, sensor telemetry, PoCs, scanner integrations, mentions, and tags are available programmatically for VM, SOC, and CTI workflows.

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Evidence confidence and provenance
First-party sensor telemetry
PoC and scanner references
Affected versions and enrichment
Automation-ready JSON delivery

GET /api/v2/pro/kevs/CVE-2020-25079

Free JSON includes basic KEV fields

{
  "cve_id": "CVE-2020-25079",
  "confidence": "Confirmed",
  "cvss_score": 8.8,
  "cvss_estimated": false,
  "epss_score": 0.54007,
  "exploit_status": {
    "exploited_in_the_wild": true,
    "active_exploitation_observed": false
  },
  "sensor_telemetry": { "attempts": 0, "sensors": 0 }
}