High severity · published May 3, 2026
CVE-2026-7674
Shenzhen Libituo Technology LBT-T300-HW1 Web Management start_single_service buffer overflow
8.8
CVSS
0.5%
EPSS
No
On KEV
Description
A flaw has been found in Shenzhen Libituo Technology LBT-T300-HW1 up to 1.2.8. This issue affects the function start_single_service of the component Web Management Interface. Executing a manipulation of the argument vpn_pptp_server/vpn_l2tp_server can lead to buffer overflow. The attack can be executed remotely. The vendor was contacted early about this disclosure but did not respond in any way.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 41% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
LB
LBT-T300-HW1 · Shenzhen Libituo Technology
1.2.0; 1.2.1; 1.2.2; 1.2.3; 1.2.4; 1.2.5; +3 more · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-7674
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-7674
github.com
https://github.com/hmKunlun/lbt-t300-hw1/blob/main/reselov_vpn_server%EF%BC%88vpn_pptp_server%EF%BC%89.md
vuldb.com
https://vuldb.com/submit/800705
vuldb.com
https://vuldb.com/submit/800706
vuldb.com
https://vuldb.com/vuln/360827
vuldb.com
https://vuldb.com/vuln/360827/cti
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Shenzhen Libituo Technology LBT-T300-HW1 apply.cgi start_lan buffer overflow