TOTOLINK EX200 up to 20260906 Web Interface /etc/boa/boa.conf least privilege violation

Summaryinfo

A vulnerability described as critical has been identified in TOTOLINK A3000RU, A3100R, A950RG, AC1200T10, CP450, CS185R_T10 and EX200 up to 20260906. This affects an unknown part of the file /etc/boa/boa.conf of the component Web Interface. The manipulation results in least privilege violation. This vulnerability is cataloged as CVE-2026-15271. The attack may be launched remotely. There is no exploit available.

Detailsinfo

A vulnerability was found in TOTOLINK A3000RU, A3100R, A950RG, AC1200T10, CP450, CS185R_T10 and EX200 up to 20260906. It has been classified as critical. Affected is an unknown code block of the file /etc/boa/boa.conf of the component Web Interface. The manipulation with an unknown input leads to a least privilege violation vulnerability. CWE is classifying the issue as CWE-272. The elevated privilege level required to perform operations such as chroot() should be dropped immediately after the operation is performed. This is going to have an impact on confidentiality, integrity, and availability.

The advisory is available at app.notion.com. This vulnerability is traded as CVE-2026-15271. The exploitability is told to be difficult. It is possible to launch the attack remotely. Technical details are known, but there is no available exploit. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 07/09/2026). This vulnerability is assigned to T1068 by the MITRE ATT&CK project.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Vendor

• TOTOLINK

Name

• A950RG
• A3000RU
• A3100R
• AC1200T10
• CP450
• CS185R_T10
• EX200

Version

• 20260906

License

• commercial

Website

• Vendor: https://www.totolink.net/

CPE 2.3info

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Submitinfo

Accepted

• Submit #852316: TOTOLink A3000RU A3000RU V5.9c.5185 Misconfiguration in A3000RU (by L-14)

Duplicate

• Submit #XXXXXX: Xxxxxxxx Xxxxxx Xxxxxx Xx.x.xxx.xxxx Xxxxxxxxxxxxxxxx Xx Xxxxxx (by L-14)
• Submit #XXXXXX: Xxxxxxxx Xxxxxxxxx Xx Xxxxxxxxx Xx Xx.x.xxx.xxxx Xxxxxxxxxxxxxxxx Xx Xxxxxxxxx Xx (by L-14)
• Submit #XXXXXX: Xxxxxxxx Xxxxx Xxxxx Xx.x.xxx.xxx Xxxxxxxxxxxxxxxx Xx Xxxxx (by L-14)
• Submit #XXXXXX: Xxxxxxxx Xxxxxx_xxx Xxxxxx_xxx Xx.xx.xxxx Xxxxxxxxxxxxxxxx Xx Xxxxxx_xxx (by L-14)
• Submit #XXXXXX: Xxxxxxxx Xxxxx Xxxxx Xx.x.xx.xxxx Xxxxxxxxxxxxxxxx Xx Xxxxx (by L-14)
• Submit #XXXXXX: Xxxxxxxx Xxxxxx Xxxxxx Xx.xx.xxxx Xxxxxxxxxxxxxxxx Xx Xxxxxx (by L-14)

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