Buffer overflow in D-Link Dir-1935
CVE-2022-43622
This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of D-Link DIR-1935 1.03 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the handling of Login requests to the web management portal. When parsing the HNAP_AUTH header, the process does not properly validate the length of user-supplied data prior to copying it to a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-16139.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.010 (61.1th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 61st percentile — 61.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.010 · newest: 0.010 · change: -0.000
Affected products
- D-Link Dir-1935 — versions 1.03
- Dlink Dir-1935
- Dlink Dir-1935 Firmware — versions 1.03
Weakness classification (CWE)
References
- supportannouncement.us.dlink.com/announcement/publication.aspx (Patch, Vendor Advisory)
- www.zerodayinitiative.com/advisories/ZDI-22-1491/ (VDB Entry, Third Party Advisory)
Frequently asked questions
- What is CVE-2022-43622?
- CVE-2022-43622 is a high-severity vulnerability in D-Link Dir-1935, classified under Stack-based Buffer Overflow. CVSS score: 8.8/10. Published 2023-03-29.
- How severe is CVE-2022-43622?
- High severity. CVSS v3 base score is 8.8 out of 10.