High 8.8Published Jan 30, 2026

CVE-2026-1686Totolink A3600R app.so setAppEasyWizardConfig buffer overflow

Updated under an hour ago (Oct 27, 2026, 9:50 AM ET)

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Every CVE for Totolink A3600R

Exploited in the last 30 days

A security flaw has been discovered in Totolink A3600R 5.9c.4959. This issue affects the function setAppEasyWizardConfig in the library /lib/cste_modules/app.so. Performing a manipulation of the argument apcliSsid results in buffer overflow. It is possible to initiate the attack remotely. The exploit has been released to the public and may be used for attacks.

CVSS: 8.8 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R
Weakness (CWE): CWE-120, CWE-119
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: VulDB
NVD analysis: Analyzed
Record last updated: Feb 23, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Totolink A3600R totolink:a3600r_firmware	5.9c.4959	CNA record
totolink a3600r_firmware totolink:a3600r_firmware	5.9c.4959	NVD

References

References

https://vuldb.com/?id.343480	vdb-entry, technical-description, third-party-advisory
https://vuldb.com/?ctiid.343480	signature, permissions-required, vdb-entry
https://vuldb.com/?submit.740888	third-party-advisory, vdb-entry
https://github.com/SunnyYANGyaya/cuicuishark-sheep-fishIOT/blob/main/ToTolink/A3600R/4959-apcliSsid-setAppEasyWizardConfig.md	related, exploit, third-party-advisory
https://github.com/SunnyYANGyaya/cuicuishark-sheep-fishIOT/blob/main/ToTolink/A3600R/4959-apcliSsid-setAppEasyWizardConfig.md#poc	exploit
https://www.totolink.net/	product

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.