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.

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-bas…

Vulnerability class: Buffer Overflow

EPSS: 0.001 (31.7th percentile) — read the EPSS interpretation.

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.

Affected products

Totolink Nr1800x — versions 9.1.0u.6279_B20210910

Weakness classification (CWE)

CWE-121 — Stack-based Buffer Overflow

Public proof-of-concept exploits

fkie-cad/nvd-json-data-feeds

References

vuldb.com/ (vdb-entry, technical-description)
vuldb.com/ (signature, permissions-required)
github.com/jylsec/vuldb/blob/main/TOTOLINK/NR1800X/1/README.md (broken-link, exploit)

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.