What is CVE-2023-36340?

CVE-2023-36340 is a critical-severity vulnerability in Totolink Nr1800x, classified under Out-of-bounds Write. CVSS score: 9.8/10. Published 2023-10-16.

How severe is CVE-2023-36340?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Buffer overflow in Totolink Nr1800x

CVE-2023-36340

TOTOLINK NR1800X V9.1.0u.6279_B20210910 was discovered to contain a stack overflow via the http_host parameter in the function loginAuth.

Vulnerability class: Buffer Overflow

EPSS: 0.007 (49.5th 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
Totolink Nr1800x_firmware — versions 9.1.0u.6279_b20210910
N/a — versions n/a

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write

References

cve@mitre.org (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2023-36340?: CVE-2023-36340 is a critical-severity vulnerability in Totolink Nr1800x, classified under Out-of-bounds Write. CVSS score: 9.8/10. Published 2023-10-16.
How severe is CVE-2023-36340?: Critical severity. CVSS v3 base score is 9.8 out of 10.