by Kastro
Paper/Archive/CVE-2026-7546

CVE-2026-7546

Totolink NR1800X — Totolink NR1800X lighttpd find_host_ip stack-based overflow

EPSS 0.8%public exploitCVSS 9.8
critical.is priorityof 100
50
CVSS 9.8 (CNA)9.8 / 10 × 3029.4Not in CISA KEV+300.0EPSS percentile 55.1.551 × 2011.0Exploit: SSVC poc+1010.0SSVC exploitation: poc+100.0
Description · from the CVE record

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.

Affected

ProductAffectedFixed inSource
NR1800X9.1.0u.6279_B20210910–CNA

Scores by source

VulDB (CNA)9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:W/RC:R
VulDB (CNA)9.8CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:W/RC:R
VulDB (CNA)9.3CVSS: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
CISA ADPSSVCExploitation: poc · Automatable: yes · Technical impact: total

References

writeupvuldb.com/vuln/360357refvuldb.com/vuln/360357/ctiwriteupvuldb.com/submit/804404exploitgithub.com/newym/cve/blob/main/totolinknr1800x.mdreftotolink.net