CVE-2020-25757

HIGH
8.8
CVSS Score
Published: December 15, 2020 at 07:27 PM UTC
Updated: June 17, 2026 at 03:07 AM UTC
20 products affected across 1 vendorDsr 250N FirmwareDsr 1000N FirmwareDsr 250 Firmware

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Severity
HIGH8.8
Exploit prediction
EPSS 2%

Description

A lack of input validation and access controls in Lua CGIs on D-Link DSR VPN routers may result in arbitrary input being passed to system command APIs, resulting in arbitrary command execution with root privileges. This affects DSR-150, DSR-250, DSR-500, and DSR-1000AC with firmware 3.14 and 3.17.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v ≤ 3.17
dlink-dsr-1000 (same device)
v ≤ 3.17
dlink-dsr-1000ac (same device)
v ≤ 3.17
dlink-dsr-1000n (same device)
v ≤ 3.17
dlink-dsr-150 (same device)
v ≤ 3.17
dlink-dsr-150n (same device)
v ≤ 3.17
dlink-dsr-250 (same device)
v ≤ 3.17
dlink-dsr-250n (same device)
v ≤ 3.17
dlink-dsr-500 (same device)
v ≤ 3.17
dlink-dsr-500ac (same device)
All versions
dlink-dsr-500n (same device)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

CVSS

Attack Vector
ADJACENT_NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-20CWE-78

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