Buffer overflow in Dlink Dir-2640-Us
CVE-2021-34201
D-Link DIR-2640-US 1.01B04 is vulnerable to Buffer Overflow. There are multiple out-of-bounds vulnerabilities in some processes of D-Link AC2600(DIR-2640). Local ordinary users can overwrite the global variables in the .bss section, causing the process crashes or changes.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.1 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H.
EPSS exploit prediction
EPSS: 0.005 (43.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 43rd percentile — 43.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000
Affected products
- Dlink Dir-2640-Us
- Dlink Dir-2640-Us Firmware — versions 1.01b04
Weakness classification (CWE)
Public proof-of-concept exploits
References
- af854a3a-2127-422b-91ae-364da2661108 (Product)
- www.dlink.com/en/security-bulletin/ (Vendor Advisory)
- af854a3a-2127-422b-91ae-364da2661108 (Product, URL Repurposed)
- github.com/liyansong2018/CVE/tree/main/2021/CVE-2021-34201 (Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-34201?
- CVE-2021-34201 is a high-severity vulnerability in Dlink Dir-2640-Us, classified under Out-of-bounds Write. CVSS score: 7.1/10. Published 2021-06-16.
- How severe is CVE-2021-34201?
- High severity. CVSS v3 base score is 7.1 out of 10.
- Is CVE-2021-34201 known to be exploited?
- 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.