PT-2026-5401 · Totolink · Totolink A3600R

Abcd1234 · Published 2026-01-30 · Updated 2026-02-10 · CVE-2026-1686

Positive Technologies (AI Summary)

CVSS v2.0

9.0

High

Base vector

AV:N/AC:L/Au:S/C:C/I:C/A:C

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

Description A security flaw exists in Totolink A3600R version 5.9c.4959. The issue resides within the setAppEasyWizardConfig function located in the /lib/cste modules/app.so library. Manipulation of the apcliSsid argument can lead to a buffer overflow. This issue is remotely exploitable. The exploit code has been publicly released.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Buffer Overflow

Weakness Enumeration

CWE-119

CWE-120

Related Identifiers

CVE-2026-1686

Affected Products

Totolink A3600R

References · 14

• 🔥 https://github.com/SunnyYANGyaya/cuicuishark-sheep-fishIOT/blob/main/ToTolink/A3600R/4959-apcliSsid-setAppEasyWizardConfig.md · Exploit
• 🔥 https://github.com/SunnyYANGyaya/cuicuishark-sheep-fishIOT/blob/main/ToTolink/A3600R/4959-apcliSsid-setAppEasyWizardConfig.md#poc · Exploit
• https://osv.dev/vulnerability/CVE-2026-1686 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-1686 · Security Note
• https://twitter.com/CVEnew/status/2017264940353220816 · Twitter Post
• https://vuldb.com/?submit.740888 · Note
• https://twitter.com/CveFindCom/status/2017284550536184239 · Twitter Post
• https://t.me/CVEtracker/43286 · Telegram Post
• https://twitter.com/vuldb/status/2017143137190531282 · Twitter Post
• https://twitter.com/VulmonFeeds/status/2017293273719517522 · Twitter Post
• https://t.me/cveNotify/151564 · Telegram Post
• https://vuldb.com/?id.343480 · Note
• https://vuldb.com/?ctiid.343480 · Note
• https://totolink.net · Note