PT-2025-39661 · D Link · Dir-823

Published 2025-07-07 · Updated 2026-03-09 · CVE-2025-55848

Positive Technologies (AI Summary)

CVSS v3.1

8.8

High

Base vector

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

Name of the Vulnerable Software and Affected Versions DIR-823 firmware version 20250416

Description A remote code execution issue exists in the set cassword settings interface. The http casswd parameter does not properly filter the '&' character, allowing for the injection of reverse connection commands.

Recommendations Update to a newer firmware version that addresses this issue. As a temporary workaround, restrict access to the set cassword settings interface.

Exploit

Fix

RCE

Command Injection

Weakness Enumeration

CWE-77

Related Identifiers

BDU:2025-12545

CVE-2025-55848

Affected Products

Dir-823

References · 8

• 🔥 https://github.com/meigui637/iot_zone/blob/main/%E5%91%BD%E4%BB%A4%E6%89%A7%E8%A1%8C%E6%BC%8F%E6%B4%9E.md · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2025-55848 · Security Note
• https://osv.dev/vulnerability/CVE-2025-55848 · Vendor Advisory
• https://bdu.fstec.ru/vul/2025-12545 · Security Note
• https://dlink.com/en/security-bulletin · Note
• https://t.me/cveNotify/154807 · Telegram Post
• https://t.me/CVEtracker/33485 · Telegram Post
• https://twitter.com/CVEnew/status/1971631251321770451 · Twitter Post