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CVE

CWE

Training

CVE-2026-4497

Published: Mar 20, 2026

Modified: Mar 20, 2026

PUBLISHED

CVSS v3.1

7.3

HIGH

Description

A vulnerability was determined in Totolink WA300 5.2cu.7112_B20190227. Affected by this issue is the function recvUpgradeNewFw of the file /cgi-bin/cstecgi.cgi. This manipulation causes os command injection. Remote exploitation of the attack is possible. The exploit has been publicly disclosed and may be utilized.

Vendor	Product	Versions
Totolink	WA300	affected `5.2cu.7112_B20190227`

Weaknesses (CWE)

CVSS v3.1 Details

CVSS v3.1 Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

Low

Availability

Low

References

VDB-352046 | Totolink WA300 cstecgi.cgi recvUpgradeNewFw os command injection

vdb-entry

technical-description

VDB-352046 | CTI Indicators (IOB, IOC, TTP, IOA)

signature

permissions-required

Submit #773875 | Totolink WA300 V5.2cu.7112_B20190227 OS Command Injection

third-party-advisory

https://github.com/hellonestor/killallbug/issues/1

issue-tracking

https://github.com/user-attachments/files/25790616/Unauthenticated.Remote.Code.Execution.in.TOTOLINK.WA300.via.Command.Injection.in.recvUpgradeNewFw.zip

exploit

patch

https://www.totolink.net/

product

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