What is CVE-2022-24673?

CVE-2022-24673 is a critical-severity vulnerability in Canon 1435i\+, classified under Stack-based Buffer Overflow. CVSS score: 9.8/10. Published 2023-03-28.

How severe is CVE-2022-24673?

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

Buffer overflow in Canon 1435i\+

CVE-2022-24673

This vulnerability allows remote attackers to execute arbitrary code on affected installations of Canon imageCLASS MF644Cdw 10.02 printers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the implementation of the SLP protocol. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-15845.

Vulnerability class: Buffer Overflow

Published 2023-03-28 · last modified 2026-06-17.

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.

EPSS exploit prediction

EPSS: 0.026 (84.9th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 85th percentile — 84.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.026 · newest: 0.026 · change: -0.000

Affected products

Weakness classification (CWE)

References

www.zerodayinitiative.com/advisories/ZDI-22-515/ (VDB Entry, Third Party Advisory)
www.usa.canon.com/support/canon-product-advisories/canon-laser-printer-inkjet-p… (Vendor Advisory)

Frequently asked questions

What is CVE-2022-24673?: CVE-2022-24673 is a critical-severity vulnerability in Canon 1435i\+, classified under Stack-based Buffer Overflow. CVSS score: 9.8/10. Published 2023-03-28.
How severe is CVE-2022-24673?: Critical severity. CVSS v3 base score is 9.8 out of 10.