Buffer overflow in Totolink A3002r
CVE-2024-34195
TOTOLINK AC1200 Wireless Router A3002R Firmware V1.1.1-B20200824 is vulnerable to Buffer Overflow. In the boa server program's CGI handling function formWlEncrypt, there is a lack of length restriction on the wlan_ssid field. This oversight leads to potential buffer overflow under specific circumstances. For instance, by invoking the formWlanRedirect function with specific parameters to alter wlan_idx's value and subsequently invoking the formWlEncrypt function, an attacker can trigger buffer overflow, enabling arbitrary command execution or denial of service attacks.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.009 (59.4th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 59th percentile — 59.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.009 · newest: 0.009 · change: 0.000
Affected products
- Totolink A3002r
- Totolink A3002r Firmware — versions 1.1.1-b20200824
Weakness classification (CWE)
References
- gist.github.com/Swind1er/84161b607d06d060fba5adcdd92bceb4 (Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2024-34195?
- CVE-2024-34195 is a critical-severity vulnerability in Totolink A3002r, classified under Out-of-bounds Write. CVSS score: 9.8/10. Published 2024-08-28.
- How severe is CVE-2024-34195?
- Critical severity. CVSS v3 base score is 9.8 out of 10.