Buffer overflow in Tenda I21
CVE-2024-4491
A vulnerability classified as critical was found in Tenda i21 1.0.0.14(4656). This vulnerability affects the function formGetDiagnoseInfo. The manipulation of the argument cmdinput leads to stack-based buffer overflow. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used. The identifier of this vulnerability is VDB-263080. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.
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: 0.015 (72.5th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 72nd percentile — 72.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.015 · newest: 0.015 · change: 0.000
Affected products
- Tenda I21 — versions 1.0.0.14(4656)
- Tenda I21 Firmware — versions 1.0.0.14(4656), 1.0.0.14\(4656\)
Weakness classification (CWE)
Public proof-of-concept exploits
References
- vuldb.com/ (technical-description, VDB Entry, Third Party Advisory, vdb-entry)
- vuldb.com/ (signature, Permissions Required, permissions-required, VDB Entry, Third Party Advisory)
- vuldb.com/ (VDB Entry, Third Party Advisory, third-party-advisory)
- github.com/abcdefg-png/IoT-vulnerable/blob/main/Tenda/i/i21/formGetDiagnoseInfo… (exploit, Broken Link)
Frequently asked questions
- What is CVE-2024-4491?
- CVE-2024-4491 is a high-severity vulnerability in Tenda I21, classified under Stack-based Buffer Overflow. CVSS score: 8.8/10. Published 2024-05-05.
- How severe is CVE-2024-4491?
- High severity. CVSS v3 base score is 8.8 out of 10.
- Is CVE-2024-4491 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.