🛡️ CVE-2025-4496 — a3000ru-firmware
Description
A vulnerability was found in TOTOLINK T10, A3100R, A950RG, A800R, N600R, A3000RU and A810R 4.1.8cu.5241_B20210927. It has been declared as critical. This vulnerability affects the function CloudACMunualUpdate of the file /cgi-bin/cstecgi.cgi. The manipulation of the argument FileName leads to buffer overflow. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used.
How this vulnerability can be exploited
This issue can be reached over the network, attack complexity is low, an attacker needs low-level privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality high, integrity high, availability high.
Weakness class
CVE-2025-4496 is classified as CWE-119: Improper Restriction of Operations within Memory Buffer Bounds. A read or write is performed without confirming it stays inside the allocated buffer, corrupting adjacent memory.
Affected software
CVE-2025-4496 is recorded against 7 packages.
- a3000ru-firmware
- a3100r-firmware
- a800r-firmware
- a810r-firmware
- a950rg-firmware
- n600r-firmware
- t10-firmware
Timeline and source
Published on 10 May 2025 and last revised on 17 June 2026. No public exploit is currently recorded for this entry. Record sourced from NVD.
References
github.com
vuldb.com
vuldb.com
vuldb.com
www.totolink.net
github.com
Details
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected Packages
| Software | From version | Fixed in |
|---|---|---|
| a3000ru-firmware | — | — |
| a3100r-firmware | — | — |
| a800r-firmware | — | — |
| a810r-firmware | — | — |
| a950rg-firmware | — | — |
| n600r-firmware | — | — |
| t10-firmware | — | — |
References
Similar Threats
- High CVE-2025-28025
- High CVE-2025-28028
- High CVE-2025-28026
- High CVE-2025-28027
- High CVE-2025-28029
More CVE 2025 advisories
Browse all of CVE 2025 in the advisory index.
Site Security Check
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