CISA KEV catalog
Confirmed active exploitation.
Listed in CISA's catalog of Known Exploited Vulnerabilities: attackers are using it in real attacks. Patch it with priority.
- Name
- ServiceNow Improper Input Validation Vulnerability
- Added to catalog
- Remediation due date (US federal)
- Required action
- Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Description
ServiceNow has addressed an input validation vulnerability that was identified in Vancouver and Washington DC Now Platform releases. This vulnerability could enable an unauthenticated user to remotely execute code within the context of the Now Platform. ServiceNow applied an update to hosted instances, and ServiceNow released the update to our partners and self-hosted customers. Listed below are the patches and hot fixes that address the vulnerability. If you have not done so already, we recommend applying security patches relevant to your instance as soon as possible.
Affected products
servicenow: servicenow
References7
- support.servicenow.com/kb?id=kb_article_view&sysparm_article=KB… Vendor Advisory
- support.servicenow.com/kb?id=kb_article_view&sysparm_article=KB… Vendor Advisory
- support.servicenow.com/kb?id=kb_article_view&sysparm_article=KB… Permissions Required
- www.darkreading.com/cloud-security/patchnow-servicenow-critical… Press/Media CoverageThird Party Advisory
- support.servicenow.com/kb?id=kb_article_view&sysparm_article=KB… Permissions Required
- www.darkreading.com/cloud-security/patchnow-servicenow-critical… Press/Media CoverageThird Party Advisory
- www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=… US Government Resource
Metrics
- CVSS 3.1
-
9.8
CRITICAL
Score source: NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - CVSS 4.0
-
9.3
CRITICAL
Score source: CNA
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X - EPSS — exploit probability
- 100% percentile: 100 · as of 3 November 2026
- CWE
- CWE-1287
Could this be exploited in your environment?
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