What is CVE-2022-41527?

CVE-2022-41527 is a high-severity vulnerability in Totolink Nr1800x, classified under Out-of-bounds Write. CVSS score: 8.8/10. Published 2022-10-06.

How severe is CVE-2022-41527?

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

Buffer overflow in Totolink Nr1800x

CVE-2022-41527

TOTOLINK NR1800X V9.1.0u.6279_B20210910 was discovered to contain an authenticated stack overflow via the pppoeUser parameter in the setOpModeCfg function.

Vulnerability class: Buffer Overflow

Published 2022-10-06 · 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: 0.009 (58.9th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 59th percentile — 58.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.009 · newest: 0.009 · change: +0.000

Affected products

Totolink Nr1800x
Totolink Nr1800x Firmware — versions 9.1.0u.6279_b20210910

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write

References

brief-nymphea-813.notion.site/NR1800X-bof-setOpModeCfg-2e286823203c405bbdec4305… (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2022-41527?: CVE-2022-41527 is a high-severity vulnerability in Totolink Nr1800x, classified under Out-of-bounds Write. CVSS score: 8.8/10. Published 2022-10-06.
How severe is CVE-2022-41527?: High severity. CVSS v3 base score is 8.8 out of 10.