PT-2026-29544 · Totolink · Totolink A3600R

Sunnyyangyaya · Published 2026-04-01 · Updated 2026-04-02 · CVE-2026-31027

Positive Technologies (AI Summary)

CVSS v3.1

10

Critical

Base vector

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

Name of the Vulnerable Software and Affected Versions TOTOlink A3600R version 5.9c.4959

Description The TOTOlink A3600R version 5.9c.4959 contains a buffer overflow flaw in the setAppEasyWizardConfig interface of /lib/cste modules/app.so. The issue is due to insufficient validation of the length of the rootSsid parameter, which can allow a remote attacker to trigger a buffer overflow, potentially resulting in arbitrary code execution or denial of service.

Recommendations Update to a newer version that contains a fix for this vulnerability. As a temporary workaround, consider disabling the setAppEasyWizardConfig interface until a patch is available.

Exploit

Fix

Buffer Overflow

Weakness Enumeration

CWE-120

Related Identifiers

BDU:2026-05167

CVE-2026-31027

Affected Products

Totolink A3600R

References · 5

• 🔥 https://github.com/SunnyYANGyaya/cuicuishark-sheep-fishIOT/blob/main/ToTolink/A3600R/rootSsid-setAppEasyWizardConfig.md · Exploit
• https://bdu.fstec.ru/vul/2026-05167 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2026-31027 · Security Note
• https://twitter.com/CosmicBytez/status/2039723789286797369 · Twitter Post
• https://twitter.com/CveFindCom/status/2039670175503441983 · Twitter Post