Buffer overflow in Totolink Nr1800x
CVE-2023-7220
A vulnerability was found in Totolink NR1800X 9.1.0u.6279_B20210910 and classified as critical. Affected by this issue is the function loginAuth of the file /cgi-bin/cstecgi.cgi. The manipulation of the argument password leads to stack-based buffer overflow. The attack may be launched remotely. The exploit has been disclosed to the public and may be used. VDB-249854 is the identifier assigned to this vulnerability. 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 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: 0.015 (73.2th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 73rd percentile — 73.2% 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
- Totolink Nr1800x — versions 9.1.0u.6279_B20210910
- Totolink Nr1800x Firmware — versions 9.1.0u.6279_b20210910
Weakness classification (CWE)
Public proof-of-concept exploits
References
- vuldb.com/ (Permissions Required, technical-description, Third Party Advisory, vdb-entry)
- vuldb.com/ (signature, Permissions Required, permissions-required, Third Party Advisory)
- github.com/jylsec/vuldb/blob/main/TOTOLINK/NR1800X/1/README.md (Exploit, Third Party Advisory, exploit, broken-link)
Frequently asked questions
- What is CVE-2023-7220?
- CVE-2023-7220 is a critical-severity vulnerability in Totolink Nr1800x, classified under Stack-based Buffer Overflow. CVSS score: 9.8/10. Published 2024-01-09.
- How severe is CVE-2023-7220?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2023-7220 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.