Paper/Archive/CVE-2026-129352

CVE-2026-129352

TRENDnet TEW-657BRM — TRENDnet TEW-657BRM upgrade_flash.cgi stack-based overflow

CVSS 9.4 (CNA)9.4 / 10 × 3028.2 Not in CISA KEV+300.0 No EPSS score.000 × 200.0 No public exploit+100.0 SSVC exploitation: unknown+100.0

Description · from the CVE record

A vulnerability was detected in TRENDnet TEW-657BRM 1.00.1. This issue affects some unknown processing of the file /usr/sbin/upgrade_flash.cgi. Performing a manipulation of the argument boundary results in stack-based buffer overflow. The attack is possible to be carried out remotely. The exploit is now public and may be used. The vendor explains: ""I am not able to confirm if such vulnerability exists as the product has been EOL for more than 15 years. We will send out an announcement letting customers know."

Affected

ProductAffectedFixed inSource

TEW-657BRM1.00.1–CNA

Scores by source

VulDB (CNA)9.4CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P

VulDB (CNA)9.1CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:R

VulDB (CNA)9.1CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:R

References

writeupvuldb.com/vuln/437398 refvuldb.com/vuln/437398/cti writeupvuldb.com/cve/CVE-2026-129352 writeupvuldb.com/submit/1043522 exploitgithub.com/ruanyi101/router-firmware-security-advisories/blob/main/router-firmware-GitHub-advisories/advisories/TRENDnet-TEW-657BRM-upgrade_flash.md