by Kastro
Paper/Archive/CVE-2026-9457

CVE-2026-9457

Totolink A8000RU — Totolink A8000RU Web Management cstecgi.cgi UploadFirmwareFile os command injection

EPSS 2%public exploitCVSS 9.8
critical.is priorityof 100
56
CVSS 9.8 (CNA)9.8 / 10 × 3029.4Not in CISA KEV+300.0EPSS percentile 81.7.817 × 2016.3Exploit: SSVC poc+1010.0SSVC exploitation: poc+100.0
Description · from the CVE record

A vulnerability was determined in Totolink A8000RU 7.1cu.643_b20200521. The affected element is the function UploadFirmwareFile of the file /cgi-bin/cstecgi.cgi of the component Web Management Interface. This manipulation of the argument FileName causes os command injection. The attack is possible to be carried out remotely. The exploit has been publicly disclosed and may be utilized.

Affected

ProductAffectedFixed inSource
A8000RU7.1cu.643_b20200521–CNA

Scores by source

VulDB (CNA)9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R
VulDB (CNA)9.8CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R
VulDB (CNA)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
CISA ADPSSVCExploitation: poc · Automatable: yes · Technical impact: total

References

writeupvuldb.com/vuln/365438refvuldb.com/vuln/365438/ctiwriteupvuldb.com/submit/813454exploitgithub.com/Litengzheng/vuldb_new2/blob/main/A8000RU/vul_343/README.mdreftotolink.net