CVE-2026-19814
8.7
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P
Summary
A vulnerability was detected in TOTOLINK A800R 4.1.2cu.5137_B20200730. Affected is the function setMacQos of the file /cgi-bin/cstecgi.cgi of the component firewall.so. Performing a manipulation of the argument macAddress results in stack-based buffer overflow. It is possible to initiate the attack remotely. The exploit is now public and may be used.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| TOTOLINK | A800R | 4.1.2cu.5137_B20200730 | affected |
Weaknesses
- CWE-121: Stack-based Buffer Overflow
- CWE-119: Memory Corruption
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: poc
- Automatable: no
- Technical Impact: total
References
- https://vuldb.com/vuln/389950
- https://vuldb.com/vuln/389950/cti
- https://vuldb.com/cve/CVE-2026-19814
- https://vuldb.com/submit/869431
- https://github.com/panda666-888/vuls/blob/main/totolink/a800r/setMacQos.md
- https://www.totolink.net/
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