CVE-2026-7546CWE-119CWE-121
Totolink NR1800X lighttpd find_host_ip stack-based overflow
Critical · published May 1, 2026
What it is
A security vulnerability has been detected in Totolink NR1800X 9.1.0u.6279_B20210910. The impacted element is the function find_host_ip of the component lighttpd. Such manipulation of the argument Host leads to stack-based buffer overflow. The attack can be executed remotely. The exploit has been disclosed publicly and may be used.
The record
Technical detail
- CVSS v4.0
- 9.3 · CRITICAL
- Vector
- CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P
- EPSS
- 0.01020 · 63.1th percentile
- Weaknesses
- CWE-119 · Improper Restriction of Operations within the Bounds of a Memory Buffer; CWE-121 · Stack-based Buffer Overflow
- Published
- 2026-05-01T02:15Z
EPSS history
Timeline