CVE-2026-11522 | THREATINT

Description

A vulnerability was detected in Tenda W20E 15.11.0.6. This vulnerability affects the function formSetPortMirror of the file /goform/setPortMirror. Performing a manipulation of the argument portMirrorMirroredPorts results in stack-based buffer overflow. The attack can be initiated remotely. The exploit is now public and may be used.

PUBLISHED Reserved 2026-06-07 | Published 2026-06-08 | Updated 2026-06-08 | 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

Stack-based Buffer Overflow

Memory Corruption

Product status

15.11.0.6

affected

Timeline

2026-06-07:	Advisory disclosed
2026-06-07:	VulDB entry created
2026-06-07:	VulDB entry last update

Credits

hacker128 (VulDB User) reporter

References

vuldb.com/vuln/369142 (VDB-369142 | Tenda W20E setPortMirror formSetPortMirror stack-based overflow) vdb-entry technical-description

vuldb.com/vuln/369142/cti (VDB-369142 | CTI Indicators (IOB, IOC, IOA)) signature permissions-required

vuldb.com/cve/CVE-2026-11522 (CVE-2026-11522 | CVE Analysis and Report) third-party-advisory

vuldb.com/submit/836469 (Submit #836469 | Tenda W20E Enterprise Router V15.11.0.6 Stack-based Buffer Overflow) third-party-advisory

github.com/...a/formSetPortMirror/portMirrorMirroredPorts.md exploit

www.tenda.com.cn/ product

cve.org (CVE-2026-11522)

nvd.nist.gov (CVE-2026-11522)

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