# Tenda W20E vulnerabilities

Source: https://junglewise.ai/threats/technologies/w20e  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Updated: 9 November 2026, 03:07 UTC. Rebuilt every hour.  
Data: https://junglewise.ai/threats/technologies/w20e.json  
License: CC BY 4.0 with a link back

Junglewise Threat Intelligence has tracked 11 vulnerabilities in Tenda W20E: 0 in the last 7 days and 2 in the last 90 days, 0 of them critical and 0 exploited in the wild. The most recent, CVE-2026-90689, was published on 14 September 2026. Nothing in the last four weeks, down from 2 vulnerabilities in the four before.

## Counts

- Last 7 days: 0
- Last 30 days: 0
- Last 90 days: 2
- All time: 11 (0 critical, 0 exploited in the wild)

## About Tenda W20E

Firmware for Tenda W20E wireless network device.

## Latest Tenda W20E vulnerabilities

- [CVE-2026-90689: Tenda W20E stack buffer overflow in formDelWebAuthWhiteUser](https://junglewise.ai/threats/cve-2026-90689-tenda-w20e-stack-buffer-overflow-in-formdelwebauthwhiteuser) (high, CVSS 8.8, published 14 Sep 2026)
- [CVE-2026-90688: Tenda W20E stack buffer overflow in formIPMacBindAdd](https://junglewise.ai/threats/cve-2026-90688-tenda-w20e-stack-buffer-overflow-in-formipmacbindadd) (medium, CVSS 6.5, published 14 Sep 2026)
- [CVE-2026-36823: Tenda W20E buffer overflow in formAddWebAuthUser](https://junglewise.ai/threats/cve-2026-36823-tenda-w20e-buffer-overflow-in-formaddwebauthuser) (info, published 9 Jun 2026)
- [CVE-2026-36822: Tenda W20E buffer overflow in formDelStaState](https://junglewise.ai/threats/cve-2026-36822-tenda-w20e-buffer-overflow-in-formdelstastate) (info, published 9 Jun 2026)
- [CVE-2026-36821: Tenda W20E buffer overflow in formCropAndSetWewifiPic](https://junglewise.ai/threats/cve-2026-36821-tenda-w20e-buffer-overflow-in-formcropandsetwewifipic) (info, CVSS 7.5, published 9 Jun 2026)
- [CVE-2026-36820: Tenda W20E buffer overflow in formAddWebAuthWhiteUser](https://junglewise.ai/threats/cve-2026-36820-tenda-w20e-buffer-overflow-in-formaddwebauthwhiteuser) (info, CVSS 7.5, published 9 Jun 2026)
- [CVE-2026-36819: Tenda W20E buffer overflow in fromSetDhcpRules](https://junglewise.ai/threats/cve-2026-36819-tenda-w20e-buffer-overflow-in-fromsetdhcprules) (info, CVSS 7.5, published 9 Jun 2026)
- [CVE-2026-36818: Tenda W20E buffer overflow in formAddWewifiWhiteUser](https://junglewise.ai/threats/cve-2026-36818-tenda-w20e-buffer-overflow-in-formaddwewifiwhiteuser) (info, published 9 Jun 2026)
- [CVE-2026-11524: Tenda W20E stack overflow in modifyWifiFilterRules](https://junglewise.ai/threats/cve-2026-11524-tenda-w20e-stack-overflow-in-modifywififilterrules) (high, CVSS 8.8, published 8 Jun 2026)
- [CVE-2026-11523: Tenda W20E stack-based buffer overflow in formPortalAuth](https://junglewise.ai/threats/cve-2026-11523-tenda-w20e-stack-based-buffer-overflow-in-formportalauth) (high, CVSS 8.8, published 8 Jun 2026)
- [CVE-2026-11522: Tenda W20E stack overflow in formSetPortMirror](https://junglewise.ai/threats/cve-2026-11522-tenda-w20e-stack-overflow-in-formsetportmirror) (high, CVSS 8.8, published 8 Jun 2026)

## Most severe Tenda W20E vulnerabilities

- [CVE-2026-90689: Tenda W20E stack buffer overflow in formDelWebAuthWhiteUser](https://junglewise.ai/threats/cve-2026-90689-tenda-w20e-stack-buffer-overflow-in-formdelwebauthwhiteuser) (high, CVSS 8.8, published 14 Sep 2026)
- [CVE-2026-11524: Tenda W20E stack overflow in modifyWifiFilterRules](https://junglewise.ai/threats/cve-2026-11524-tenda-w20e-stack-overflow-in-modifywififilterrules) (high, CVSS 8.8, published 8 Jun 2026)
- [CVE-2026-11523: Tenda W20E stack-based buffer overflow in formPortalAuth](https://junglewise.ai/threats/cve-2026-11523-tenda-w20e-stack-based-buffer-overflow-in-formportalauth) (high, CVSS 8.8, published 8 Jun 2026)
- [CVE-2026-11522: Tenda W20E stack overflow in formSetPortMirror](https://junglewise.ai/threats/cve-2026-11522-tenda-w20e-stack-overflow-in-formsetportmirror) (high, CVSS 8.8, published 8 Jun 2026)
- [CVE-2026-90688: Tenda W20E stack buffer overflow in formIPMacBindAdd](https://junglewise.ai/threats/cve-2026-90688-tenda-w20e-stack-buffer-overflow-in-formipmacbindadd) (medium, CVSS 6.5, published 14 Sep 2026)
- [CVE-2026-36821: Tenda W20E buffer overflow in formCropAndSetWewifiPic](https://junglewise.ai/threats/cve-2026-36821-tenda-w20e-buffer-overflow-in-formcropandsetwewifipic) (info, CVSS 7.5, published 9 Jun 2026)
- [CVE-2026-36820: Tenda W20E buffer overflow in formAddWebAuthWhiteUser](https://junglewise.ai/threats/cve-2026-36820-tenda-w20e-buffer-overflow-in-formaddwebauthwhiteuser) (info, CVSS 7.5, published 9 Jun 2026)
- [CVE-2026-36819: Tenda W20E buffer overflow in fromSetDhcpRules](https://junglewise.ai/threats/cve-2026-36819-tenda-w20e-buffer-overflow-in-fromsetdhcprules) (info, CVSS 7.5, published 9 Jun 2026)
- [CVE-2026-36823: Tenda W20E buffer overflow in formAddWebAuthUser](https://junglewise.ai/threats/cve-2026-36823-tenda-w20e-buffer-overflow-in-formaddwebauthuser) (info, published 9 Jun 2026)
- [CVE-2026-36822: Tenda W20E buffer overflow in formDelStaState](https://junglewise.ai/threats/cve-2026-36822-tenda-w20e-buffer-overflow-in-formdelstastate) (info, published 9 Jun 2026)

## Vulnerabilities per week

Nothing in the last four weeks, down from 2 vulnerabilities in the four before.

| Week of | Vulns | Critical | Exploited |
| --- | --- | --- | --- |
| 17 Aug 2026 | 0 | 0 | 0 |
| 24 Aug 2026 | 0 | 0 | 0 |
| 31 Aug 2026 | 0 | 0 | 0 |
| 7 Sep 2026 | 0 | 0 | 0 |
| 14 Sep 2026 | 2 | 0 | 0 |
| 21 Sep 2026 | 0 | 0 | 0 |
| 28 Sep 2026 | 0 | 0 | 0 |
| 5 Oct 2026 | 0 | 0 | 0 |
| 12 Oct 2026 | 0 | 0 | 0 |
| 19 Oct 2026 | 0 | 0 | 0 |
| 26 Oct 2026 | 0 | 0 | 0 |
| 2 Nov 2026 | 0 | 0 | 0 |
| 9 Nov 2026 | 0 | 0 | 0 |

## Other Tenda technologies

- [Tenda CH22](https://junglewise.ai/threats/technologies/ch22): 24 vulnerabilities
- [Tenda F456](https://junglewise.ai/threats/technologies/f456): 23 vulnerabilities
- [Tenda F456 Firmware](https://junglewise.ai/threats/technologies/f456-firmware): 22 vulnerabilities
- [Tenda Ch22 Firmware](https://junglewise.ai/threats/technologies/ch22-firmware): 20 vulnerabilities
- [Tenda Wh450](https://junglewise.ai/threats/technologies/wh450): 19 vulnerabilities
- [Tenda Wh450 Firmware](https://junglewise.ai/threats/technologies/wh450-firmware): 19 vulnerabilities
- [Tenda F451](https://junglewise.ai/threats/technologies/f451): 17 vulnerabilities
- [Tenda CP3](https://junglewise.ai/threats/technologies/cp3): 14 vulnerabilities
- [Tenda F451 Firmware](https://junglewise.ai/threats/technologies/f451-firmware): 14 vulnerabilities
- [Tenda AC7](https://junglewise.ai/threats/technologies/ac7): 13 vulnerabilities
- [Tenda O3](https://junglewise.ai/threats/technologies/o3): 11 vulnerabilities
- [Tenda G0](https://junglewise.ai/threats/technologies/g0): 10 vulnerabilities

## Sources

NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories. Rebuilt every hour. Cite as: Junglewise Threat Intelligence, "Tenda W20E vulnerabilities", https://junglewise.ai/threats/technologies/w20e, 9 November 2026.