CVE-2026-7546

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.

CVSS 4.0

8.9CVSS: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

CVSS 3.1

9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS

0.8% chance of exploitation in the next 30 days; higher than 54% of CVEs (scores of 2026-10-26)

CWEs

CWE-119, CWE-121

Published

2026-05-01

Modified

2026-10-26

Record from

the NVD, synced 2026-10-26

References

• https://github.com/newym/cve/blob/main/totolinknr1800x.md
• https://vuldb.com/submit/804404
• https://vuldb.com/vuln/360357
• https://vuldb.com/vuln/360357/cti
• https://www.totolink.net/

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