SAP Multiple Products HTTP Request Smuggling Vulnerability
SAP NetWeaver Application Server ABAP, SAP NetWeaver Application Server Java, ABAP Platform, SAP Content Server and SAP Web Dispatcher allow HTTP request smuggling. An unauthenticated attacker can prepend a victim's request with arbitrary data, allowing for function execution impersonating the victim or poisoning intermediary Web caches.
- Vendor
- SAP
- Product
- Multiple Products
- CVSS
- 10.0
- EPSS (exploit probability)
- 97.9%
- Status
- kev
- CISA patch-by (BOD 22-01)
- Added to KEV
Is CVE-2022-22536 being exploited?
Yes. CISA added CVE-2022-22536 to its Known Exploited Vulnerabilities catalog on . CISA only lists a CVE when it has reliable evidence of exploitation in the wild.
FIRST's EPSS model puts the probability of exploitation activity in the next 30 days at 97.9% (scored October 14, 2026).
- CISA KEV[ LISTED ]
- ENISA EUVD (exploited)[ — ]
- CIRCL KEV[ — ]
Catalog snapshot 2026-10-19. Full cross-catalog view: /kev-comparison
What to do
CISA required actionApply updates per vendor instructions.
US federal civilian agencies must remediate by (21 days after listing) under BOD 22-01. Everyone else: that deadline is a sensible upper bound, not a target. Vendor guidance and the NVD record are linked under Source above.
Other SAP CVEs we track
| CVE / Vulnerability | Severity | CVSS | EPSS | Added to KEV |
|---|---|---|---|---|
| CVE-2026-58231 SAP Commerce Cloud Data Hub Adapter Unauthenticated RCEwrite-up | [ CRITICAL ] | 10.0 | 0.9% | — |
| CVE-2026-44761 SAP Commerce Cloud ships sample OAuth2 client with publicly documented credentialswrite-up | [ CRITICAL ] | 9.1 | 0.5% | — |
| CVE-2026-44747 SAP NetWeaver AS ABAP memory-corruption via logical errors in memory managementwrite-up | [ CRITICAL ] | 9.9 | 0.6% | — |
| CVE-2026-27690 SAP AppRouter HTTP request smuggling in Node.js middlewarewrite-up | [ CRITICAL ] | 9.1 | 0.7% | — |
| CVE-2025-42999 SAP NetWeaver Deserialization Vulnerabilityransomware use | [ CRITICAL ] | 9.1 | 12.7% | |
| CVE-2025-31324 SAP NetWeaver Unrestricted File Upload Vulnerabilityransomware use | [ CRITICAL ] | 10.0 | 99.5% | |
| CVE-2017-12637 SAP NetWeaver Directory Traversal Vulnerability | [ HIGH ] | 7.5 | 95.1% | |
| CVE-2019-0344 SAP Commerce Cloud Deserialization of Untrusted Data Vulnerability | [ CRITICAL ] | 9.8 | 7.1% |