What is CVE-2022-34886?

CVE-2022-34886 is a high-severity vulnerability in Lenovo G263dns, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 8.8/10. Published 2023-10-27.

How severe is CVE-2022-34886?

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

Buffer overflow in Lenovo G263dns

CVE-2022-34886

A remote code execution vulnerability was found in the firmware used in some Lenovo printers, which can be caused by a remote user pushing an illegal string to the server-side interface via a script, resulting in a stack overflow.

Vulnerability class: Buffer Overflow

Published 2023-10-27 · 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 (57.8th percentile), scored 2026-10-01.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 58th percentile — 57.8% 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

Weakness classification (CWE)

References

iknow.lenovo.com.cn/detail/205041.html (Patch, Vendor Advisory)

Frequently asked questions

What is CVE-2022-34886?: CVE-2022-34886 is a high-severity vulnerability in Lenovo G263dns, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 8.8/10. Published 2023-10-27.
How severe is CVE-2022-34886?: High severity. CVSS v3 base score is 8.8 out of 10.