CVE-2026-6157

HIGH 8.8

Totolink A800R app.so setAppEasyWizardConfig buffer overflow

CVSS Score

8.8

EPSS Score

0.0%

EPSS Percentile

0th

A vulnerability was detected in Totolink A800R 4.1.2cu.5137_B20200730. This impacts the function setAppEasyWizardConfig in the library /lib/cste_modules/app.so. The manipulation of the argument apcliSsid results in buffer overflow. The attack can be executed remotely. The exploit is now public and may be used.

CWE	CWE-120 CWE-119
Vendor	totolink
Product	a800r
Published	Apr 13, 2026
Last Updated	Apr 13, 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 / A800R

4.1.2cu.5137_B20200730

References

NVD ↗ CVE.org ↗ EPSS Data ↗

vuldb.com: https://vuldb.com/vuln/357037 vuldb.com: https://vuldb.com/vuln/357037/cti vuldb.com: https://vuldb.com/submit/793114 github.com: https://github.com/xyh4ck/iot_poc/blob/main/TOTOLINK/A800R/01_Buffer_Overflow_setAppEasyWizardConfig.md totolink.net: https://www.totolink.net/

Credits

🔍 xuanyu (VulDB User)