What is CVE-2026-26736?

CVE-2026-26736 is a high-severity vulnerability in Totolink A3002ru_firmware, classified under Out-of-bounds Write. CVSS score: 8.8/10. Published 2026-02-17.

How severe is CVE-2026-26736?

High severity. CVSS v3 base score is 8.8 out of 10.

Buffer overflow in Totolink A3002ru_firmware

CVE-2026-26736

TOTOLINK A3002RU_V3 V3.0.0-B20220304.1804 was discovered to contain a stack-based buffer overflow via the static_ipv6 parameter in the formIpv6Setup function.

Vulnerability class: Buffer Overflow

EPSS: 0.005 (38.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Totolink A3002ru_firmware
Totolink A3002ru-v3
N/a — versions n/a

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write
CWE-121 — Stack-based Buffer Overflow

References

cve@mitre.org (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2026-26736?: CVE-2026-26736 is a high-severity vulnerability in Totolink A3002ru_firmware, classified under Out-of-bounds Write. CVSS score: 8.8/10. Published 2026-02-17.
How severe is CVE-2026-26736?: High severity. CVSS v3 base score is 8.8 out of 10.