Vulnerability in Dlink Dir-816
CVE-2022-37134
D-link DIR-816 A2_v1.10CNB04.img is vulnerable to Buffer Overflow via /goform/form2Wan.cgi. When wantype is 3, l2tp_usrname will be decrypted by base64, and the result will be stored in v94, which does not check the size of l2tp_usrname, resulting in stack 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: 0.217 (97.6th percentile), scored .
Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 98th percentile — 97.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.212 · newest: 0.217 · change: +0.005
Affected products
- Dlink Dir-816 — versions a2
- Dlink Dir-816 Firmware — versions 1.10cnb04
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.dlink.com/en/security-bulletin/ (Vendor Advisory)
- github.com/z1r00/IOT_Vul/blob/main/dlink/Dir816/form2Wan_cgi/readme.md (Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2022-37134?
- CVE-2022-37134 is a critical-severity vulnerability in Dlink Dir-816, classified under Improper Validation of Specified Quantity in Input. CVSS score: 9.8/10. Published 2022-08-22.
- How severe is CVE-2022-37134?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2022-37134 known to be exploited?
- 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.