Buffer overflow in Dlink Dsl-2640b
CVE-2020-9276
An issue was discovered on D-Link DSL-2640B B2 EU_4.01B devices. The function do_cgi(), which processes cgi requests supplied to the device's web servers, is vulnerable to a remotely exploitable stack-based buffer overflow. Unauthenticated exploitation is possible by combining this vulnerability with CVE-2020-9277.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.026 (84.8th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 85th percentile — 84.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.026 · newest: 0.026 · change: 0.000
Affected products
- Dlink Dsl-2640b
- Dlink Dsl-2640b Firmware — versions eu_4.01b
Weakness classification (CWE)
References
- www.dlink.com/en/security-bulletin (Vendor Advisory)
- raelize.com/posts/d-link-dsl-2640b-security-advisories/ (Exploit, Third Party Advisory)
- raelize.com/advisories/CVE-2020-9276_D-Link-DSL-2640B_do_cgi-buffer-overflow_v1… (Third Party Advisory)
Frequently asked questions
- What is CVE-2020-9276?
- CVE-2020-9276 is a high-severity vulnerability in Dlink Dsl-2640b, classified under Out-of-bounds Write. CVSS score: 8.8/10. Published 2020-04-20.
- How severe is CVE-2020-9276?
- High severity. CVSS v3 base score is 8.8 out of 10.