# Tenda O3 vulnerabilities

Source: https://junglewise.ai/threats/technologies/o3  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Updated: 9 November 2026, 03:07 UTC. Rebuilt every hour.  
Data: https://junglewise.ai/threats/technologies/o3.json  
License: CC BY 4.0 with a link back

Junglewise Threat Intelligence has tracked 11 vulnerabilities in Tenda O3: 0 in the last 7 days and 0 in the last 90 days, 0 of them critical and 0 exploited in the wild. The most recent, CVE-2026-36791, was published on 9 June 2026.

## Counts

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

## About Tenda O3

Firmware for the Tenda O3 outdoor point-to-point wireless bridge.

## Latest Tenda O3 vulnerabilities

- [CVE-2026-36791: Tenda O3v3 stack overflow in formSetCfm](https://junglewise.ai/threats/cve-2026-36791-tenda-o3v3-stack-overflow-in-formsetcfm) (info, CVSS 7.5, published 9 Jun 2026)
- [CVE-2026-36784: Tenda O3 Wireless Router stack overflow in fromNetToolGet](https://junglewise.ai/threats/cve-2026-36784-tenda-o3-wireless-router-stack-overflow-in-fromnettoolget) (info, CVSS 7.5, published 9 Jun 2026)
- [CVE-2026-36783: Tenda O3 Wireless Router stack overflow in fromNetToolGet](https://junglewise.ai/threats/cve-2026-36783-tenda-o3-wireless-router-stack-overflow-in-fromnettoolget) (info, CVSS 7.5, published 9 Jun 2026)
- [CVE-2026-36779: Tenda O3 Wireless Router stack overflow in fromVirtualSer](https://junglewise.ai/threats/cve-2026-36779-tenda-o3-wireless-router-stack-overflow-in-fromvirtualser) (info, CVSS 7.5, published 9 Jun 2026)
- [CVE-2026-36778: Tenda O3 Wireless Router stack overflow in R7WebsSecurityHandler](https://junglewise.ai/threats/cve-2026-36778-tenda-o3-wireless-router-stack-overflow-in-r7webssecurityhandler) (info, CVSS 7.5, published 9 Jun 2026)
- [CVE-2025-12214: A vulnerability was detected in Tenda O3 1.0.0.10(2478). This issue affects the function SetValue/GetValue of the file…](https://junglewise.ai/threats/cve-2025-12214-a-vulnerability-was-detected-in-tenda-o3-1-0-0-10-2478-this-issue) (high, CVSS 8.8, published 27 Oct 2025)
- [CVE-2025-12213: A security vulnerability has been detected in Tenda O3 1.0.0.10(2478). This vulnerability affects the function…](https://junglewise.ai/threats/cve-2025-12213-a-security-vulnerability-has-been-detected-in-tenda-o3-1-0-0-10) (high, CVSS 8.8, published 27 Oct 2025)
- [CVE-2025-12212: A weakness has been identified in Tenda O3 1.0.0.10(2478). This affects the function SetValue/GetValue of the file…](https://junglewise.ai/threats/cve-2025-12212-a-weakness-has-been-identified-in-tenda-o3-1-0-0-10-2478-this) (high, CVSS 8.8, published 27 Oct 2025)
- [CVE-2025-12211: A security flaw has been discovered in Tenda O3 1.0.0.10(2478). Affected by this issue is the function…](https://junglewise.ai/threats/cve-2025-12211-a-security-flaw-has-been-discovered-in-tenda-o3-1-0-0-10-2478) (high, CVSS 8.8, published 27 Oct 2025)
- [CVE-2025-12210: A vulnerability was identified in Tenda O3 1.0.0.10(2478). Affected by this vulnerability is the function…](https://junglewise.ai/threats/cve-2025-12210-a-vulnerability-was-identified-in-tenda-o3-1-0-0-10-2478-affected) (high, CVSS 8.8, published 27 Oct 2025)
- [CVE-2025-12209: A vulnerability was determined in Tenda O3 1.0.0.10(2478). Affected is the function SetValue/GetValue of the file…](https://junglewise.ai/threats/cve-2025-12209-a-vulnerability-was-determined-in-tenda-o3-1-0-0-10-2478-affected) (high, CVSS 8.8, published 27 Oct 2025)

## Most severe Tenda O3 vulnerabilities

- [CVE-2025-12210: A vulnerability was identified in Tenda O3 1.0.0.10(2478). Affected by this vulnerability is the function…](https://junglewise.ai/threats/cve-2025-12210-a-vulnerability-was-identified-in-tenda-o3-1-0-0-10-2478-affected) (high, CVSS 8.8, published 27 Oct 2025)
- [CVE-2025-12209: A vulnerability was determined in Tenda O3 1.0.0.10(2478). Affected is the function SetValue/GetValue of the file…](https://junglewise.ai/threats/cve-2025-12209-a-vulnerability-was-determined-in-tenda-o3-1-0-0-10-2478-affected) (high, CVSS 8.8, published 27 Oct 2025)
- [CVE-2025-12211: A security flaw has been discovered in Tenda O3 1.0.0.10(2478). Affected by this issue is the function…](https://junglewise.ai/threats/cve-2025-12211-a-security-flaw-has-been-discovered-in-tenda-o3-1-0-0-10-2478) (high, CVSS 8.8, published 27 Oct 2025)
- [CVE-2025-12214: A vulnerability was detected in Tenda O3 1.0.0.10(2478). This issue affects the function SetValue/GetValue of the file…](https://junglewise.ai/threats/cve-2025-12214-a-vulnerability-was-detected-in-tenda-o3-1-0-0-10-2478-this-issue) (high, CVSS 8.8, published 27 Oct 2025)
- [CVE-2025-12213: A security vulnerability has been detected in Tenda O3 1.0.0.10(2478). This vulnerability affects the function…](https://junglewise.ai/threats/cve-2025-12213-a-security-vulnerability-has-been-detected-in-tenda-o3-1-0-0-10) (high, CVSS 8.8, published 27 Oct 2025)
- [CVE-2025-12212: A weakness has been identified in Tenda O3 1.0.0.10(2478). This affects the function SetValue/GetValue of the file…](https://junglewise.ai/threats/cve-2025-12212-a-weakness-has-been-identified-in-tenda-o3-1-0-0-10-2478-this) (high, CVSS 8.8, published 27 Oct 2025)
- [CVE-2026-36791: Tenda O3v3 stack overflow in formSetCfm](https://junglewise.ai/threats/cve-2026-36791-tenda-o3v3-stack-overflow-in-formsetcfm) (info, CVSS 7.5, published 9 Jun 2026)
- [CVE-2026-36784: Tenda O3 Wireless Router stack overflow in fromNetToolGet](https://junglewise.ai/threats/cve-2026-36784-tenda-o3-wireless-router-stack-overflow-in-fromnettoolget) (info, CVSS 7.5, published 9 Jun 2026)
- [CVE-2026-36783: Tenda O3 Wireless Router stack overflow in fromNetToolGet](https://junglewise.ai/threats/cve-2026-36783-tenda-o3-wireless-router-stack-overflow-in-fromnettoolget) (info, CVSS 7.5, published 9 Jun 2026)
- [CVE-2026-36779: Tenda O3 Wireless Router stack overflow in fromVirtualSer](https://junglewise.ai/threats/cve-2026-36779-tenda-o3-wireless-router-stack-overflow-in-fromvirtualser) (info, CVSS 7.5, published 9 Jun 2026)

## Vulnerabilities per week

Nothing was published in the last eight weeks.

| 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 | 0 | 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 W20E](https://junglewise.ai/threats/technologies/w20e): 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 O3 vulnerabilities", https://junglewise.ai/threats/technologies/o3, 9 November 2026.