CVE-2025-12420CWE-250

Unauthenticated Privilege Escalation in ServiceNow AI Platform

Critical · published January 12, 2026

Patch now

High probability of exploitation

CVSS calls it critical at 9.3. It sits in the 99.0th percentile for exploit probability.

CVSS v4.0
9.3
EPSS
53%
Percentile
99.0
In the wild
Unconfirmed
What it is

🚨 An unauthenticated user can impersonate others on the ServiceNow AI Platform, and that's just the tip of the iceberg! 🔥 Think of it like a fake ID that lets someone stroll into a prestigious event, mingling with VIPs and accessing exclusive areas — all without ever flashing a legitimate pass. It's surprisingly sneaky and can lead to chaos! If exploited, this vulnerability could allow malicious actors to perform any operation that the impersonated user is entitled to, potentially compromising sensitive data and altering critical workflows. Imagine someone accessing confidential information or executing actions that could disrupt services — a scenario that could be absolutely devastating for any organization!

Put simply

Think of it like a fake ID that lets someone stroll into a prestigious event, mingling with VIPs and accessing exclusive areas — all without ever flashing a legitimate pass. It's surprisingly sneaky and can lead to chaos! This vulnerability allows an unauthenticated individual to impersonate a legitimate user on the ServiceNow AI Platform, enabling unauthorized access to perform actions as if they were that user, without any prior authentication checks.

What to do

If exploited, this vulnerability could allow malicious actors to perform any operation that the impersonated user is entitled to, potentially compromising sensitive data and altering critical workflows. Imagine someone accessing confidential information or executing actions that could disrupt services — a scenario that could be absolutely devastating for any organization! It's crucial to apply the relevant security updates immediately to your hosted instance, or if you're using a self-hosted setup, ensure you've upgraded to the latest version provided by ServiceNow. Don't delay — the longer you wait, the more vulnerable you are! You've got this! Apply those updates and fortify your defenses! 🛡️

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:H/SI:H/SA:H/E:P/S:N/AU:Y/R:U/V:C/RE:H/U:Amber
EPSS
0.53188 · 99.0th percentile
Weakness
CWE-250 · Execution with Unnecessary Privileges
Published
2026-01-12T21:29Z
EPSS history
Timeline
  • 12 JAN 21:29Z
    Unauthenticated Privilege Escalation in ServiceNow AI Platform
    cvelistv5