Buffer overflow in Totolink A3000ru
CVE-2025-28033
TOTOLINK A800R V4.1.2cu.5137_B20200730, A810R V4.1.2cu.5182_B20201026, 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 pre-auth buffer…
Vulnerability class: Buffer Overflow
EPSS: 0.003 (24.8th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.3 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L.
Affected products
- Totolink A3000ru
- Totolink A3000ru_firmware — versions 5.9c.5185_b20201128
- Totolink A3100r
- Totolink A3100r_firmware — versions 4.1.2cu.5247_b20211129
- Totolink A800r
- Totolink A800r_firmware — versions 4.1.2cu.5137_b20200730
- Totolink A810r
- Totolink A810r_firmware — versions 4.1.2cu.5182_b20201026
- Totolink A830r
- Totolink A830r_firmware — versions 4.1.2cu.5182_b20201102
Weakness classification (CWE)
Public proof-of-concept exploits
References
- cve@mitre.org (Exploit, Third Party Advisory)
- 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2025-28033?
- CVE-2025-28033 is a high-severity vulnerability in Totolink A3000ru, classified under Stack-based Buffer Overflow. CVSS score: 7.3/10. Published 2025-04-22.
- How severe is CVE-2025-28033?
- High severity. CVSS v3 base score is 7.3 out of 10.
- Is CVE-2025-28033 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.