# CVE-2026-15271: TOTOLINK multiple devices privilege escalation in Web Interface

Source: https://junglewise.ai/threats/cve-2026-15271-totolink-multiple-devices-privilege-escalation-in-web-interface  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-07-09. Updated: 2026-07-09  
License: CC BY 4.0 with a link back

CVE-2026-15271 · Severity: high · CVSS 7.5 · Published 2026-07-09

A security vulnerability exists in several TOTOLINK networking devices, including routers and range extenders. An attacker could exploit this flaw to bypass intended security restrictions and gain unauthorized access or elevated privileges on the device. This could lead to full control over the network traffic passing through the device or unauthorized changes to network settings.

Technologies: [TOTOLINK A950rg](https://junglewise.ai/threats/technologies/a950rg), [TOTOLINK CP450](https://junglewise.ai/threats/technologies/cp450), [TOTOLINK EX200](https://junglewise.ai/threats/technologies/ex200). Vendors: [TOTOLINK](https://junglewise.ai/threats/vendors/totolink).

## Quick answers

**Is CVE-2026-15271 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-15271 being exploited in the wild.

**How severe is CVE-2026-15271?** High severity, with a CVSS score of 7.5, published 9 July 2026.

**Which products and versions are affected?** TOTOLINK A3000RU up to 20260906; TOTOLINK A3100R up to 20260906; TOTOLINK A950rg up to 20260906; TOTOLINK AC1200T10 up to 20260906; and 3 more.

**Is there a fix for CVE-2026-15271?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2026-15271 attacked?** It is attacked over the network, in a network appliance.

**Am I affected by CVE-2026-15271?** Check whether you run TOTOLINK A3000RU, TOTOLINK A3100R, TOTOLINK A950rg or one of the others listed at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

This vulnerability is classified as an incorrect privilege assignment (CWE-266) and least privilege violation (CWE-272) within the Web Interface of multiple TOTOLINK devices. The flaw is specifically associated with the handling of the /etc/boa/boa.conf configuration file. A remote attacker with low privileges can exploit this vulnerability to gain higher-level access. While the attack can be initiated over the network, it is characterized by high complexity and is considered difficult to exploit in practice. Successful exploitation allows for a complete compromise of confidentiality, integrity, and availability on the affected hardware.

## Affected products

- TOTOLINK A3000RU up to 20260906
- TOTOLINK A3100R up to 20260906
- TOTOLINK A950RG up to 20260906
- TOTOLINK AC1200T10 up to 20260906
- TOTOLINK CP450 up to 20260906
- TOTOLINK CS185R_T10 up to 20260906
- TOTOLINK EX200 up to 20260906

## Timeline

- 2026-07-09: disclosed
- 2026-07-09: advisory

## References

- [https://app.notion.com/p/A3000RU-V5-9c-5185-37a1f5ba989080d38bb6ca58b2a98c64?source=copy_link](https://app.notion.com/p/A3000RU-V5-9c-5185-37a1f5ba989080d38bb6ca58b2a98c64?source=copy_link)
- [https://vuldb.com/cve/CVE-2026-15271](https://vuldb.com/cve/CVE-2026-15271)
- [https://vuldb.com/submit/852316](https://vuldb.com/submit/852316)
- [https://vuldb.com/submit/852317](https://vuldb.com/submit/852317)
- [https://vuldb.com/submit/852318](https://vuldb.com/submit/852318)
- [https://vuldb.com/submit/852319](https://vuldb.com/submit/852319)
- [https://vuldb.com/submit/852320](https://vuldb.com/submit/852320)

## Related threats

- [TOTOLINK A950RG stack buffer overflow in MAC filter handler](https://junglewise.ai/threats/cve-2026-121600-a-flaw-has-been-found-in-totolink-a950rg-4-1-2cu-5268-b20221104)
- [TOTOLINK A950RG stack buffer overflow in WiFi configuration](https://junglewise.ai/threats/cve-2026-121599-a-vulnerability-was-detected-in-totolink-a950rg-4-1-2cu-5268)
- [TOTOLINK A950RG stack buffer overflow in wireless configuration](https://junglewise.ai/threats/cve-2026-121598-a-security-vulnerability-has-been-detected-in-totolink-a950rg-4)
- [TOTOLINK A950RG stack buffer overflow in Easy Setup Wizard](https://junglewise.ai/threats/cve-2026-121597-a-weakness-has-been-identified-in-totolink-a950rg-4-1-2cu-5268)
- [TOTOLINK A950RG stack buffer overflow in infostat.cgi](https://junglewise.ai/threats/cve-2026-116508-a-security-flaw-has-been-discovered-in-totolink-a950rg-4-1-2cu)