No exploitation reported

CVE-2020-25759

No exploitation reported by the sources we read.

Published2020-12-15
WeaknessCWE-20 · CWE-78

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

An issue was discovered on D-Link DSR-250 3.17 devices. Certain functionality in the Unified Services Router web interface could allow an authenticated attacker to execute arbitrary commands, due to a lack of validation of inputs provided in multipart HTTP POST requests.

Timeline

dates in UTC

2020-12-1520:15CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-10-23 18:48 UTC

Indicators tagged with this CVE, per day0 indicators over 7 days

Block these indicators

Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2020-25759?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2020-25759?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD

Dlink dsr-1000 firmwareversion to verify

Branch	Affected	Fixed in	Source
3.17	≤ 3.17	no fix published	NVD

Dlink dsr-1000ac firmwareversion to verify

Branch	Affected	Fixed in	Source
3.17	≤ 3.17	no fix published	NVD

Dlink dsr-1000n firmwareversion to verify

Branch	Affected	Fixed in	Source
3.17	≤ 3.17	no fix published	NVD

7 more products in the sources.

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

Advisories and patches

supportannouncement.us.dlink.comVendor Advisory
www.dlink.comVendor Advisory

Detection

Nuclei template: none so far
Exploit-DB: no entry
Proof-of-concept repositories: none listed

Sources

NVDCVSS 3.18.8read 2026-10-23
NVDCVSS 2.09read 2026-10-23
NVDweakness (CWE)CWE-20, CWE-78read 2026-10-23
FIRST EPSSEPSS score2.3 %2026-10-22

Technical details

CVSS v3 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Published: 2020-12-15
Last Modified: 2026-06-17
NVD status: Modified

Frequently asked questions

What is CVE-2020-25759?

Is CVE-2020-25759 actively exploited?

Active exploitation of CVE-2020-25759 has not been confirmed. Its EPSS score was 2.3% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2020-25759?

CVE-2020-25759 has a CVSS v3 base score of 8.8 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

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