CVE-2026-89126: Memory Corruption vulnerability in SAP Web Dispatcher
- Is it exploited?
Not on CISA's list. CISA has not added it to the Known Exploited Vulnerabilities catalog as of . If CISA adds it, this page shows it as known exploited.
- How likely is exploitation in the next 30 days?
- 0.4%
EPSS score, percentile 37.8 of all scored records. A probability estimated by FIRST, not a report of exploitation.
- How severe?
- 10.0 Critical
CVSS v3.1 base score, given by the CNA
- What should I do?
CISA has set no required action, because the vulnerability is not in KEV.
No patch or vendor advisory is listed in the CVE record. Check SAP's advisories.
- Which versions are affected?
Affected
- HDB 2.00
- KRNL64UC 7.53
- WEBDISP 7.53
- 7.54
- 7.77
- 7.93
and 6 more in the table below
Source: CISA KEV 2026.11.10, as of ; FIRST EPSS, as of ; CVE List, as of . About the data.
Description
Memory Corruption vulnerability in SAP Web Dispatcher
SAP Web Dispatcher does not sufficiently validate certain network input processed by an internal component. An unauthenticated attacker could send specially crafted network traffic to trigger a memory corruption condition in the affected functionality. Successful exploitation could allow the attacker to execute arbitrary code and fully compromise the system, resulting in a high impact on confidentiality, integrity and availability of the system.
Source: CVE List, as of . About the data.
What to do
Advisories and patches
No patch, vendor advisory or mitigation is listed in the CVE record. Check SAP's own security advisories for a fix, and compare your version with the affected versions below.
This summary is based on the CVE record as of . Check the vendor's advisory before you act: affected versions and fixes can change.
Affected products and versions
Versions by product, as listed in the CVE record (1 product)
| Status | Versions |
|---|---|
| Affected | HDB 2.00 |
| Affected | KRNL64UC 7.53 |
| Affected | WEBDISP 7.53 |
| Affected | 7.54 |
| Affected | 7.77 |
| Affected | 7.93 |
| Affected | 9.16 |
| Affected | XS_ADVANCED_RUNTIME 1.00 |
| Affected | SAP_EXTENDED_APP_SERVICES 1 |
| Affected | KERNEL 7.53 |
| Affected | 9.18 |
| Affected | 9.20 |
Versions not listed are: unaffected.
Source: CVE List, as of . About the data.
Weakness
CWE-122
- CWE-122: Heap-based Buffer Overflow
CWE and CAPEC are maintained by MITRE; the entries are those named in the CVE record.
Timeline
| Date | Event |
|---|---|
| CVE record published | |
| CVE record last updated |
References
2
Known exploited SAP vulnerabilities
- CVE-2025-42999: SAP NetWeaver Deserialization Vulnerability
- CVE-2025-31324: SAP NetWeaver Unrestricted File Upload Vulnerability
- CVE-2017-12637: SAP NetWeaver Directory Traversal Vulnerability
- CVE-2019-0344: SAP Commerce Cloud Deserialization of Untrusted Data Vulnerability
- CVE-2022-22536: SAP Multiple Products HTTP Request Smuggling Vulnerability