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Description

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.

PUBLISHED Reserved 2026-04-30 | Published 2026-05-01 | Updated 2026-05-01 | Assigner VulDB




CRITICAL: 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
CRITICAL: 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
CRITICAL: 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
10.0AV:N/AC:L/Au:N/C:C/I:C/A:C/E:POC/RL:W/RC:UR

Problem types

Stack-based Buffer Overflow

Memory Corruption

Product status

9.1.0u.6279_B20210910
affected

Timeline

2026-04-30:Advisory disclosed
2026-04-30:VulDB entry created
2026-04-30:VulDB entry last update

Credits

NEWYM (VulDB User) reporter

References

vuldb.com/vuln/360357 (VDB-360357 | Totolink NR1800X lighttpd find_host_ip stack-based overflow) vdb-entry technical-description

vuldb.com/vuln/360357/cti (VDB-360357 | CTI Indicators (IOB, IOC, IOA)) signature permissions-required

vuldb.com/submit/804404 (Submit #804404 | Totolink C834FR-1C NR1800X 内存损坏) third-party-advisory

github.com/newym/cve/blob/main/totolinknr1800x.md exploit

www.totolink.net/ product

cve.org (CVE-2026-7546)

nvd.nist.gov (CVE-2026-7546)

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