HEAD TO HEAD · SCORED SEPTEMBER 2026 · CROWDSTRIKE EASM ADDED 13 OCTOBER 2026
Cortex Xpanse vs Tenable ASM: attack surface management compared
Quick answer
Cortex Xpanse scores 6.80 to Tenable ASM's 6.05 on our weights, a gap of 0.75. Cortex Xpanse leads on discovery, attribution, remediation and time to value; Tenable ASM leads on pricing transparency. They tie on exploitability validation and integrations.
Scored September 2026 · CrowdStrike EASM added 13 October 2026 · Drawn from vendor product pages, docs and public pricing
How do Cortex Xpanse and Tenable ASM compare on each criterion?
| Criterion | Weight | Cortex Xpanse | Tenable ASM | Winner |
|---|---|---|---|---|
| Discovery of unknown assets and subsidiaries | 20% | 8 | 7 | Cortex Xpanse |
| Attribution accuracy and false-positive handling | 15% | 7 | 6 | Cortex Xpanse |
| Exploitability validation | 15% | 5 | 5 | Tie |
| Remediation and mitigation support | 20% | 8 | 6 | Cortex Xpanse |
| Integrations and platform reach | 10% | 9 | 9 | Tie |
| Time to value | 10% | 7 | 6 | Cortex Xpanse |
| Pricing transparency | 10% | 2 | 3 | Tenable ASM |
Cortex Xpanse leads on 4 criteria, Tenable ASM on 1, 2 tied. Weighted: Cortex Xpanse 6.80, Tenable ASM 6.05.
What does a finding arrive with in each?
Cortex Xpanse
- Owner or subsidiary attributedPartial
- Exploitability provenNot documented
- Ticket or workflow createdDocumented
- Compensating control appliedDocumented
- Fix retestedNot documented
Tenable ASM
- Owner or subsidiary attributedNot documented
- Exploitability provenNot documented
- Ticket or workflow createdPartial
- Compensating control appliedPartial
- Fix retestedNot documented
Where does each one win?
Cortex Xpanse wins on
Discovery of unknown assets and subsidiaries: 8 vs 7
Palo Alto Networks says Xpanse scans the full IPv4 space several times a day (4.3 billion addresses; 500 billion+ ports scanned daily).
Attribution accuracy and false-positive handling: 7 vs 6
Identifies the relevant stakeholders for third-party exposures; subsidiary attribution detail is not published on the pages reviewed.
Remediation and mitigation support: 8 vs 6
Active Response runs built-in automated playbooks, with routing and remediation through Cortex XSOAR playbooks.
Time to value: 7 vs 6
Internet-wide scan data exists before onboarding; onboarding inputs and trial terms are not published.
Tenable ASM wins on
Pricing transparency: 3 vs 2
ASM is quote-only, although Tenable publishes prices for adjacent products such as Tenable One Vulnerability Management.
Tied: Exploitability validation (5), Integrations and platform reach (9).
How do Cortex Xpanse and Tenable ASM price?
| Item | Cortex Xpanse | Tenable ASM |
|---|---|---|
| Pricing | Not published. Contact sales. | ASM: quote only. Tenable publishes prices for some adjacent products. |
| Deployment | SaaS within the Palo Alto Networks Cortex portfolio | SaaS, part of Tenable One |
| Pricing transparency score | 2 | 3 |
Prices and pricing bases as published by each vendor and reviewed in September 2026. 'Not published' means we did not find it on the vendor's public pages.
Should you choose Cortex Xpanse or Tenable ASM?
Choose Cortex Xpanse if
- The tool has to fit a wider security platform or many existing tools. Cortex Xpanse scores 9 on integrations: Native ties to Cortex XSOAR and Prisma Cloud inside the Palo Alto Networks Cortex portfolio.
- You want help closing exposures, not only a longer list of them. Cortex Xpanse scores 8 on remediation: Active Response runs built-in automated playbooks, with routing and remediation through Cortex XSOAR playbooks.
Choose Tenable ASM if
- The tool has to fit a wider security platform or many existing tools. Tenable ASM scores 9 on integrations: Feeds Tenable One alongside vulnerability, cloud, OT and identity exposure data, with Tenable One Connectors for third-party sources.
- Finding unknown assets, subsidiaries and acquired infrastructure is your main gap. Tenable ASM scores 7 on discovery: Draws on an attack surface map of more than 5 billion assets to identify domains related to the buyer's inventory.
On our default weights Cortex Xpanse comes out ahead. Change the weights in the score calculator to see whether that holds for your priorities.
Frequently asked questions
Is Cortex Xpanse better than Tenable ASM?
On our weights Cortex Xpanse scores higher, 6.80 to 6.05. Cortex Xpanse leads on 4 criteria and Tenable ASM on 1 criterion, with 2 tied. The better choice depends on which criteria matter most to you; the score calculator lets you change the weights.
What do Cortex Xpanse and Tenable ASM cost?
Cortex Xpanse: Not published. Contact sales. Tenable ASM: ASM: quote only. Tenable publishes prices for some adjacent products.
Which one does more to help fix exposures?
Cortex Xpanse scores 8 on remediation and mitigation support against 6 for Tenable ASM. Cortex Xpanse: Active Response runs built-in automated playbooks, with routing and remediation through Cortex XSOAR playbooks.
Sources: Cortex Xpanse, Attack surface management, Exposure management, Attack Surface Management, Tenable One, Buy · Reviewed September 2026