CVE-2026-35867
LowCVSS 3.1Exploitation Probability (EPSS)
Low risk43th percentile - higher than 43% of all known CVEs
Summary
A command injection vulnerability exists in the bs_SetLimitCli_info function within the libshare.so library of the LB-LINK router AC1900_AZ2 V1.0.2 via shell metacharacters. It is reachable when an actor can make a POST /goform/set_LimitClient_cfg call but does not already have administrative access to the device.
Risk Assessment
An attacker with network access to the router interface can execute arbitrary system commands, leading to full device compromise and traffic manipulation. This may result in data interception, DNS configuration changes, or use of the router as a foothold for further attacks.
Recommendation
Update the LB-LINK AC1900_AZ2 router firmware to a version containing the fix and restrict administrative interface access to trusted networks only. Until patched, disable WAN access to the management panel.
Related vulnerabilities
- CVE-2026-121802Critical
@better-auth/expo before 1.7.16 signs a caller-supplied state value without verifying that it was issued by the server. This allows account-takeover outcomes, such as unauthenticated changes of any account's email address.
- CVE-2026-121615Critical
Linksys E5600 1.1.0.26 contains an improper authentication vulnerability in /cgi-bin/mesh_login.cgi (Login Handler). The attack can be launched remotely and the exploit has been publicly disclosed. The vendor did not respond and the product is no longer supported.
- CVE-2026-121609Critical
A vulnerability was identified in the Qihoo 360 Whole Home Router M5 version 4.0.17.1566 within the boot script /etc/init.d/mpt (Home function). The issue involves hard-coded credentials. The exploit is publicly available and remote exploitation is possible.
- CVE-2026-121607Critical
A vulnerability was found in Qihoo 360 D603-2, D600-2, D606-6 and D706 up to version 6.4.9 in the testspeed_command function of /fs2/bin/iscm. Manipulating the host argument results in OS command injection. The attack can be initiated remotely and the exploit has been made public.
- CVE-2026-121606Critical
A vulnerability was found in Qihoo 360 devices (models D621-2, D603-2, D600-2, D619, D606-6 and D706 up to 6.4.9) in the verify_sign function of fs2/bin/iscm responsible for firmware signature verification. Manipulating the sign argument leads to improper verification of cryptographic signatures. The attack can be launched remotely and the exploit has been publicly disclosed.
- CVE-2026-121600Critical
A vulnerability was found in TOTOLINK A950RG version 4.1.2cu.5268_B20221104 in the setMacFilterRules function of /cgi-bin/cstecgi.cgi handling MAC filtering. Manipulating the addEffect argument causes a stack-based buffer overflow. The attack can be initiated remotely and the exploit is publicly available.
- CVE-2026-121599Critical
A vulnerability was detected in TOTOLINK A950RG version 4.1.2cu.5268_B20221104 in the setWiFiMultipleConfig/delWiFiMultipleConfig functions of /cgi-bin/cstecgi.cgi handling Multi-SSID configuration. Manipulating the wepkey2/wepkey3 arguments results in a stack-based buffer overflow. The attack can be launched remotely and the exploit is now public.
- CVE-2026-121598Critical
A security vulnerability was detected in TOTOLINK A950RG version 4.1.2cu.5268_B20221104 in the strcpy function of /cgi-bin/cstecgi.cgi handling basic wireless configuration. Manipulating the wepkey argument leads to a stack-based buffer overflow. The attack can be initiated remotely and the exploit has been publicly disclosed.
- CVE-2026-92190Critical
Quest Foglight for Databases contains a deserialization of untrusted data vulnerability in the baseRmiServiceExporter component. An unauthenticated remote attacker can execute arbitrary code in the context of SYSTEM.
- CVE-2026-92189Critical
In Quest Foglight for Databases, the writeTopologySectionToFile method does not validate a user-supplied path before using it in file operations. An unauthenticated remote attacker can execute arbitrary code in the context of SYSTEM.
Original NVD description (English source)
A Command Injection vulnerability exists in the bs_SetLimitCli_info function within the libshare.so library of the LB-LINK router AC1900_AZ2 V1.0.2 via shell metacharacters, if the device is deployed in a scenario where an actor is able to make a "POST /goform/set_LimitClient_cfg" call but does not already have administrative access to the device.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS

