CVE-2026-5101
Last modified
CVE-2026-5101 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. A vulnerability was identified in Totolink A3300R 17.0.0cu.557_b20221024. This affects the function setLanCfg of the file /cgi-bin/cstecgi.cgi of the component Parameter Handler. EPSS estimates a 2.18% chance of exploitation in the next 30 days.
Description
A vulnerability was identified in Totolink A3300R 17.0.0cu.557_b20221024. This affects the function setLanCfg of the file /cgi-bin/cstecgi.cgi of the component Parameter Handler. The manipulation of the argument lanIp leads to command injection. Remote exploitation of the attack is possible. The exploit is publicly available and might be used.
Metrics
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Totolink | A3300r Firmware | 17.0.0cu.557_b20221024 |
References
- https://github.com/Litengzheng/vul_db/blob/main/A3300R/vul_39/README.mdExploit, Third Party Advisory
- https://vuldb.com/submit/779128Third Party Advisory, VDB Entry
- https://vuldb.com/vuln/354126Third Party Advisory, VDB Entry
- https://vuldb.com/vuln/354126/ctiThird Party Advisory, VDB Entry
- https://www.totolink.net/Product
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
What is CVE-2026-5101?
How severe is CVE-2026-5101?
How do I fix CVE-2026-5101?
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2026
- CVE-2026-50891Incorrect access control in the /admin/api/config component …8.1
- CVE-2026-50892Incorrect access control in the "Let's Encrypt" certificate …6.5
- CVE-2026-5090Template::Plugin::HTML versions through 3.102 for Perl allow…6.1
- CVE-2026-5091Catalyst::Plugin::Authentication versions through 0.10024 fo…5.1
- CVE-2026-50986PrestaShop module, totadministrativemandate <1.8.1 is vulner…8.8
- CVE-2026-5100The AWP Classifieds plugin for WordPress is vulnerable to SQ…7.5
- CVE-2026-5102A security flaw has been discovered in Totolink A3300R 17.0.…8.8
- CVE-2026-51025Cross Site Scripting vulnerability in fuint Member Marketing…6.1
- CVE-2026-51026Directory Traversal vulnerability in FileThingie v.2.5.7 all…6.5
- CVE-2026-51027An issue in FileThingie v.2.5.7 allows a remote attacker to …9.9
- CVE-2026-5103A weakness has been identified in Totolink A3300R 17.0.0cu.5…8.8
- CVE-2026-51031FlareSolverr before version 3.4.7 contains a server-side req…7.5
Are you affected by CVE-2026-5101?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST