CVE-2025-14231CWE-787

Buffer overflow in print job processing by WSD on Small Office Multifunction Printers and Laser Printers(*) which may allow an attacker on the network segment…

Critical · published January 15, 2026

CVSS v4.0
9.3
EPSS
1%
Percentile
59.4
In the wild
Unconfirmed
What it is

🚨 A buffer overflow in WSD print job processing could turn your office printer into an unresponsive paperweight! 🔥 Think of it like a delivery truck trying to carry too many packages — when it gets overloaded, it crashes and can’t deliver anything. This vulnerability allows an attacker on the same network segment to stuff your printer with an excessive amount of data, potentially causing it to malfunction or run unauthorized code. If exploited, this vulnerability could lead to a complete outage of your printing services or even worse, allow an attacker to execute arbitrary code on the printer. Imagine your printer going rogue in the middle of an important print job, leaving you with a stack of disrupted documents and potential security breaches!

Put simply

Think of it like a delivery truck trying to carry too many packages — when it gets overloaded, it crashes and can’t deliver anything. This vulnerability allows an attacker on the same network segment to stuff your printer with an excessive amount of data, potentially causing it to malfunction or run unauthorized code. This critical vulnerability arises from a buffer overflow in the print job processing of specific Small Office Multifunction Printers and Laser Printers. An attacker can exploit this flaw by sending specially crafted print jobs, leading to denial of service or arbitrary code execution.

What to do

If exploited, this vulnerability could lead to a complete outage of your printing services or even worse, allow an attacker to execute arbitrary code on the printer. Imagine your printer going rogue in the middle of an important print job, leaving you with a stack of disrupted documents and potential security breaches! To protect your network, update to the latest firmware version for your printer models immediately. Ensure that you are running firmware version later than v06.02 to mitigate this risk. Furthermore, consider isolating your printer network segment from other sensitive devices to limit exposure. You've got this! Take these steps, and you'll have your printers secured and running smoothly in no time! 🛡️

The record
Technical detail
CVSS v4.0
9.3 · CRITICAL
Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
EPSS
0.00902 · 59.4th percentile
Weakness
CWE-787 · Out-of-bounds Write
Published
2026-01-15T23:35Z
EPSS history
Timeline
  • 15 JAN 23:35Z
    Buffer overflow in print job processing by WSD on Small Office Multifunction Printers and Laser Printers(*) which may allow an attacker on the network segment…
    cvelistv5