Buffer overflow in Dlink Dir-2640-Us
CVE-2021-34202
There are multiple out-of-bounds vulnerabilities in some processes of D-Link AC2600(DIR-2640) 1.01B04. Ordinary permissions can be elevated to administrator permissions, resulting in local arbitrary code execution. An attacker can combine other vulnerabilities to further achieve the purpose of remote code execution.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.036 (89.2th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 89th percentile — 89.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.036 · newest: 0.036 · 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 (Vendor Advisory)
- www.dlink.com/en/security-bulletin/ (Vendor Advisory)
- af854a3a-2127-422b-91ae-364da2661108 (URL Repurposed, Broken Link)
- github.com/liyansong2018/CVE/tree/main/2021/CVE-2021-34202 (Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-34202?
- CVE-2021-34202 is a high-severity vulnerability in Dlink Dir-2640-Us, classified under Out-of-bounds Write. CVSS score: 7.8/10. Published 2021-06-16.
- How severe is CVE-2021-34202?
- High severity. CVSS v3 base score is 7.8 out of 10.
- Is CVE-2021-34202 known to be exploited?
- 6 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.