CVE-2026-7717 | THREATINT

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Description

A vulnerability was determined in Totolink WA300 5.2cu.7112_B20190227. This issue affects the function UploadCustomModule of the file /cgi-bin/cstecgi.cgi of the component POST Request Handler. Executing a manipulation of the argument File can lead to buffer overflow. The attack can be launched remotely. The exploit has been publicly disclosed and may be utilized.

PUBLISHED Reserved 2026-05-03 | Published 2026-05-04 | Updated 2026-05-04 | Assigner VulDB

HIGH: 8.7CVSS: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

HIGH: 8.8CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R

HIGH: 8.8CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R

9.0AV:N/AC:L/Au:S/C:C/I:C/A:C/E:POC/RL:ND/RC:UR

Problem types

Buffer Overflow

Memory Corruption

Product status

5.2cu.7112_B20190227
affected

Timeline

2026-05-03:	Advisory disclosed
2026-05-03:	VulDB entry created
2026-05-03:	VulDB entry last update

Credits

wxhwxhwxh_mie (VulDB User) reporter

References

vuldb.com/vuln/360893 (VDB-360893 | Totolink WA300 POST Request cstecgi.cgi UploadCustomModule buffer overflow) vdb-entry technical-description

vuldb.com/vuln/360893/cti (VDB-360893 | CTI Indicators (IOB, IOC, IOA)) signature permissions-required

vuldb.com/submit/807193 (Submit #807193 | Totolink WA300 WA300 V5.2cu.7112_B20190227 Buffer Overflow) third-party-advisory

lavender-bicycle-a5a.notion.site/…781f80a8a287e48a7fb04de9 exploit

www.totolink.net/ product

cve.org (CVE-2026-7717)

nvd.nist.gov (CVE-2026-7717)

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