PT-2026-32224 · Totolink · Totolink A800R

Xuanyu · CVE-2026-6157 · Published 2026-03-30 · Updated 2026-04-29

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 A800R version 4.1.2cu.5137 B20200730

Description A flaw exists in the Totolink A800R version 4.1.2cu.5137 B20200730 due to a buffer overflow in the setAppEasyWizardConfig function within the /lib/cste modules/app.so library. The apcliSsid argument is susceptible to manipulation, leading to the overflow. This issue can be exploited remotely.

Recommendations Update to a newer version that contains a fix for this vulnerability.

Exploit

Fix

Buffer Overflow

Weakness Enumeration

CWE-119

CWE-120

Related Identifiers

BDU:2026-07597

CVE-2026-6157

Affected Products

Totolink A800R

References · 10

• 🔥 https://github.com/xyh4ck/iot_poc/blob/main/TOTOLINK/A800R/01_Buffer_Overflow_setAppEasyWizardConfig.md · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2026-6157 · Security Note
• https://bdu.fstec.ru/vul/2026-07597 · Security Note
• https://totolink.net · Note
• https://twitter.com/DFIR_Lab/status/2049281820093497660 · Twitter Post
• https://twitter.com/CveFindCom/status/2043542783701438855 · Twitter Post
• https://vuldb.com/vuln/357037/cti · Note
• https://vuldb.com/vuln/357037 · Note
• https://twitter.com/vuldb/status/2043395526499106828 · Twitter Post
• https://vuldb.com/submit/793114 · Note