CVE-2025-28026
HIGHCVSS 7.3/10EPSS 0.33%
Last modified
CVE-2025-28026 is a high-severity vulnerability rated 7.3/10 on the CVSS scale. TOTOLINK A830R V4.1.2cu.5182_B20201102, A950RG V4.1.2cu.5161_B20200903, A3000RU V5.9c.5185_B20201128, and A3100R V4.1.2cu.5247_B20211129 were found to contain a buffer overflow vulnerability in downloadFile.cgi.. EPSS estimates a 0.33% chance of exploitation in the next 30 days.
Description
TOTOLINK A830R V4.1.2cu.5182_B20201102, A950RG V4.1.2cu.5161_B20200903, A3000RU V5.9c.5185_B20201128, and A3100R V4.1.2cu.5247_B20211129 were found to contain a buffer overflow vulnerability in downloadFile.cgi.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Totolink | A830r Firmware | 4.1.2cu.5182_b20201102 |
| Totolink | A950rg Firmware | 4.1.2cu.5161_b20200903 |
| Totolink | A3000ru Firmware | 5.9c.5185_b20201128 |
| Totolink | A3100r Firmware | 4.1.2cu.5247_b20211129 |
References
- https://locrian-lightning-dc7.notion.site/BufferOverflow3-19e8e5e2b1a28048b8ddd4afdbe18d55Exploit, Third Party Advisory
- https://locrian-lightning-dc7.notion.site/CVE-2025-28026-BufferOverflow3-19e8e5e2b1a28048b8ddd4afdbe18d55Exploit, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
What is CVE-2025-28026?
TOTOLINK A830R V4.1.2cu.5182_B20201102, A950RG V4.1.2cu.5161_B20200903, A3000RU V5.9c.5185_B20201128, and A3100R V4.1.2cu.5247_B20211129 were found to contain a buffer overflow vulnerability in downloadFile.cgi.
How severe is CVE-2025-28026?
CVE-2025-28026 has a CVSS score of 7.3/10 (HIGH severity). The EPSS model estimates a 0.33% probability of exploitation in the next 30 days.
How do I fix CVE-2025-28026?
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-2025-28026?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST