CVE-2026-34265: Memory Corruption vulnerability in Application Server ABAP for SAP NetWeaver and ABAP Platform
- 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?
- 0.6%
EPSS score, percentile 50.7 of all scored records. A probability estimated by FIRST, not a report of exploitation.
- How severe?
- 9.8 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.
The CVE record links no vendor advisory, patch or mitigation.
- Which versions are affected?
Affected
- KRNL64NUC 7.22
- 7.22EXT
- KRNL64UC 7.22
- 7.22EXT2
- 7.22EXT3
- 7.53
and 6 more in the table below
Source: CISA KEV 2026.10.28, as of ; FIRST EPSS, as of ; CVE List, as of . About the data.
What to do
Advisories and patches
The CVE record links no vendor advisory, patch or mitigation.
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
As listed in the CVE record.
| Status | Versions |
|---|---|
| Affected | KRNL64NUC 7.22 |
| Affected | 7.22EXT |
| Affected | KRNL64UC 7.22 |
| Affected | 7.22EXT2 |
| Affected | 7.22EXT3 |
| Affected | 7.53 |
| Affected | 7.54 |
| Affected | 7.77 |
| Affected | 7.89 |
| Affected | 7.93 |
| Affected | 8.04 |
| Affected | 9.16 9.18 |
Versions not listed are: unaffected.
And 4 more version entries in the CVE record.
Source: CVE List, as of . About the data.
About this vulnerability
SAP NetWeaver Application Server ABAP allows an unauthenticated attacker to exploit logical errors in DIAG protocol parsing, resulting in memory corruption. This vulnerability could potentially disclose sensitive system information or crash the system, leading to a high impact on the confidentiality, integrity, and availability of the application.
Summary: CVE record, as of .
- CISA has not added CVE-2026-34265 to its Known Exploited Vulnerabilities (KEV) catalog, as of 28 Oct 2026.
- The CVE record was published on 11 Aug 2026.
- The CVE record carries a CVSS v3.1 base score of 9.8 (Critical), given by its CNA.
- FIRST's EPSS model puts the probability of exploitation in the next 30 days at 0.6% (percentile 50.7), as of 29 Oct 2026. EPSS is a statistical estimate, not a report of exploitation.
- CISA's SSVC assessment in the CVE record: exploitation none, automatable yes, technical impact total.
Source: CISA KEV 2026.10.28, as of ; CVE List, as of ; FIRST EPSS, as of . About the data.
Description
Memory Corruption vulnerability in Application Server ABAP for SAP NetWeaver and ABAP Platform
SAP NetWeaver Application Server ABAP allows an unauthenticated attacker to exploit logical errors in DIAG protocol parsing, resulting in memory corruption. This vulnerability could potentially disclose sensitive system information or crash the system, leading to a high impact on the confidentiality, integrity, and availability of the application.
Source: CVE List, as of . About the data.
Weakness
CWE-787
- CWE-787: Out-of-bounds Write
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