CVE-2020-25079

Exp

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: 2020-09-02 Last update: 2025-11-07 Assigner: [email protected] Source: [email protected]
NVD Status：Analyzed，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2020-25079 is rated Critical Active Threat (89.3/100): CVSS High severity, with high exploitation likelihood (EPSS 41.90%, 97th percentile). CISA KEV confirms active exploitation (added 2025-08-05) affecting D-Link / DCS-2530L and DCS-2670L Devices. a weakness (CWE-77) Unauthenticated remote administrative access may be possible. The CISA remediation deadline has passed—treat as an emergency patch priority.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

CISA KEV Record for CVE-2020-25079

Name: D-Link DCS-2530L and DCS-2670L Command Injection Vulnerability · CISA KEV detail

Exploit added: 2025-08-05

Action due: 2025-08-26

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.

Public exploit references (Exploit-DB) for CVE-2020-25079

EDB-ID Source Kind Published Link
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2020-25079

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-05-22 48.27% 41.90% -6.37%
2 2026-02-11 44.99% 48.27% +3.28%
3 2026-01-02 — 44.99% —

Full EPSS history (27 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2020-25079

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
8.8 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 2.8 5.9 [email protected]
8.8 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 2.8 5.9 134c704f-9b21-4f2e-91b3-4a467353bcc0
9.0 2.0 HIGH
AV:N/AC:L/Au:S/C:C/I:C/A:C Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:S)
A single authentication is required.
Confidentiality impact (C:C)
Complete confidentiality impact.
Integrity impact (I:C)
Complete integrity impact.
Availability impact (A:C)
Complete availability impact.
 8.0 10.0 [email protected]

Weakness enumeration for CVE-2020-25079

Affected software / configurations for CVE-2020-25079

Vendor Product Version Raw CPE
dlink dcs-4703e_firmware < 1.03.04 cpe:2.3:o:dlink:dcs-4703e_firmware:*:*:*:*:*:*:*:*
dlink dcs-4705e_firmware < 1.03.02 cpe:2.3:o:dlink:dcs-4705e_firmware:*:*:*:*:*:*:*:*
dlink dcs-4802e_firmware < 2.01.01 cpe:2.3:o:dlink:dcs-4802e_firmware:*:*:*:*:*:*:*:*
dlink dcs-p703_firmware — cpe:2.3:o:dlink:dcs-p703_firmware:*:*:*:*:*:*:*:*
dlink dcs-4603_firmware < 1.04.02 cpe:2.3:o:dlink:dcs-4603_firmware:*:*:*:*:*:*:*:*
dlink dcs-4622_firmware < 2.01.10 cpe:2.3:o:dlink:dcs-4622_firmware:*:*:*:*:*:*:*:*
dlink dcs-4701e_firmware < 2.03.01 cpe:2.3:o:dlink:dcs-4701e_firmware:*:*:*:*:*:*:*:*
dlink dcs-2530l_firmware <= 1.05.05 cpe:2.3:o:dlink:dcs-2530l_firmware:*:*:*:*:*:*:*:*
dlink dcs-2670l_firmware < 2.03.00 cpe:2.3:o:dlink:dcs-2670l_firmware:*:*:*:*:*:*:*:*

References for CVE-2020-25079

cvelogic Threat Intelligence