CVE-2020-26567

Dsr 250n Firmware vulnerability

CVSS

5.5

EPSS

17.2%

EPSS pct

97th

Exploited

No known

An issue was discovered on D-Link DSR-250N before 3.17B devices. The CGI script upgradeStatusReboot.cgi can be accessed without authentication. Any access reboots the device, rendering it therefore unusable for several minutes.

Affected vendor

Dlink

Affected product

Dsr 250n Firmware

CVSS vector

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

Weakness type (CWE)

CWE-306 — Missing Authentication for Critical Function

Published

2020-10-08

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable with local access, low attack complexity, requiring low privileges, no user interaction. Successful exploitation leads to high impact to availability.

Its EPSS score of 17.2% reflects a moderate probability of exploitation activity in the wild over the next 30 days, placing it above 97% of all scored CVEs.

Check your external exposure to CVE-2020-26567

Confirm whether Dlink Dsr 250n Firmware is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2020-26567.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2020-26567

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2020-26567 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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