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CVE-2025-55848

D-Link Dir-823x Firmware command injection

8.8 HIGHPublic exploitEPSS 0.41%
  1. Published26 Sept 2025

Description

An issue was discovered in DIR-823 firmware 20250416. There is an RCE vulnerability in the set_cassword settings interface, as the http_casswd parameter is not filtered by '&'to allow injection of reverse connection commands.

CVSS 3.1 breakdown

Attack vectorAdjacent
Attack complexityLow
Privileges requiredNone
User interactionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

D-Link Dir-823x Firmware250416

Remediation

No fixed version is recorded in the NVD data. Check the vendor advisory for the latest guidance.

References

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Frequently asked

Is CVE-2025-55848 being actively exploited?

CVE-2025-55848 is not in the CISA KEV catalog. A public exploit reference exists, so treat it as exploitable. Its EPSS exploit probability is 0.41%.

How severe is CVE-2025-55848?

CVE-2025-55848 has a CVSS 3.1 base score of 8.8, rated high. EPSS estimates a 0.41% probability of exploitation.

Which products are affected by CVE-2025-55848?

Affected products include D-Link Dir-823x Firmware.

How do I fix CVE-2025-55848?

Apply the vendor's patch or advisory guidance, then verify no affected versions remain across your devices.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2025-55848 against the real software inventory on every managed device, as each hourly inventory arrives. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.