What is CVE-2023-33485?

CVE-2023-33485 is a high-severity vulnerability in Totolink X5000r, classified under Out-of-bounds Write. CVSS score: 8.8/10. Published 2023-05-31.

How severe is CVE-2023-33485?

High severity. CVSS v3 base score is 8.8 out of 10.

Buffer overflow in Totolink X5000r

CVE-2023-33485

TOTOLINK X5000R V9.1.0u.6118_B20201102 and V9.1.0u.6369_B20230113 contains a post-authentication buffer overflow via parameter sPort/ePort in the addEffect function.

Vulnerability class: Buffer Overflow

Published 2023-05-31 · last modified 2026-06-17.

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: 0.011 (63.2th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 63rd percentile — 63.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.011 · newest: 0.011 · change: 0.000

Affected products

Totolink X5000r
Totolink X5000r Firmware — versions 9.1.0u.6118_b20201102, 9.1.0u.6369_b20230113

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write

References

github.com/Kazamayc/vuln/tree/main/TOTOLINK/X5000R/5 (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2023-33485?: CVE-2023-33485 is a high-severity vulnerability in Totolink X5000r, classified under Out-of-bounds Write. CVSS score: 8.8/10. Published 2023-05-31.
How severe is CVE-2023-33485?: High severity. CVSS v3 base score is 8.8 out of 10.