CVE-2026-1686

HIGH 8.8

Totolink A3600R app.so setAppEasyWizardConfig buffer overflow

CVSS Score

8.8

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-120 CWE-119
Vendor	totolink
Product	a3600r
Published	Jan 30, 2026
Last Updated	Feb 23, 2026

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CVSS v3 Breakdown

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

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

Integrity

Availability

Affected Versions

Totolink / A3600R

5.9c.4959

References

NVD ↗ CVE.org ↗ EPSS Data ↗

vuldb.com: https://vuldb.com/?id.343480 vuldb.com: https://vuldb.com/?ctiid.343480 vuldb.com: https://vuldb.com/?submit.740888 github.com: https://github.com/SunnyYANGyaya/cuicuishark-sheep-fishIOT/blob/main/ToTolink/A3600R/4959-apcliSsid-setAppEasyWizardConfig.md github.com: https://github.com/SunnyYANGyaya/cuicuishark-sheep-fishIOT/blob/main/ToTolink/A3600R/4959-apcliSsid-setAppEasyWizardConfig.md#poc totolink.net: https://www.totolink.net/

Credits

🔍 Abcd1234 (VulDB User)