CVE-2026-2191
HIGHCVSS 7.3/10EPSS 0.66%
Last modified
CVE-2026-2191 is a high-severity vulnerability rated 7.3/10 on the CVSS scale. A weakness has been identified in Tenda AC9 15.03.06.42_multi. Affected is the function formGetDdosDefenceList. EPSS estimates a 0.66% chance of exploitation in the next 30 days.
Description
A weakness has been identified in Tenda AC9 15.03.06.42_multi. Affected is the function formGetDdosDefenceList. This manipulation of the argument security.ddos.map causes stack-based buffer overflow. The attack may be initiated remotely. The exploit has been made available to the public and could be used for attacks.
Metrics
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Tenda | Ac9 Firmware | 15.03.06.42_multi |
References
- https://github.com/glkfc/IoT-Vulnerability/blob/main/Tenda/tenda3.mdExploit, Third Party Advisory
- https://vuldb.com/?ctiid.344894Permissions Required, VDB Entry
- https://vuldb.com/?id.344894Third Party Advisory, VDB Entry
- https://vuldb.com/?submit.749800Third Party Advisory, VDB Entry
- https://www.tenda.com.cn/Product
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
What is CVE-2026-2191?
A weakness has been identified in Tenda AC9 15.03.06.42_multi. Affected is the function formGetDdosDefenceList. This manipulation of the argument security.ddos.map causes stack-based buffer overflow. The attack may be initiated remotely. The exploit has been made available to the public and could be used for attacks.
How severe is CVE-2026-2191?
CVE-2026-2191 has a CVSS score of 7.3/10 (HIGH severity). The EPSS model estimates a 0.66% probability of exploitation in the next 30 days.
How do I fix CVE-2026-2191?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
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Are you affected by CVE-2026-2191?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST