Answer in brief
CVE-2026-109805 records a Medium severity (CVSS 6.4) vulnerability in Weak Cryptography in SAP NetWeaver and ABAP Platform (Application Server ABAP). The current sources do not mark it as known exploited. The current feed maps SAP_SE/SAP NetWeaver and ABAP Platform (Application Server ABAP) (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 6.4. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps SAP_SE/SAP NetWeaver and ABAP Platform (Application Server ABAP) (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| SAP_SE/SAP NetWeaver and ABAP Platform (Application Server ABAP)generic | KRNL64NUC 7.22 || 7.22EXT || KRNL64UC 7.22 || 7.53 || KERNEL 7.22 || 7.54 || 7.77 || 7.93 || 9.16 || 9.20 || 9.21 | Not reported |
Published upstream
Nov 10, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Nov 10, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Nov 10, 2026
Due to a weak HMAC cryptography calculation when receiving an RFC callback in SAP NetWeaver and ABAP Platform (Application Server ABAP), an authenticated attacker with high privileges and access to a network segment between application servers on an SAP system could intercept network communication between application servers and change the identity of the caller, enabling the execution of unauthorized function calls on the target server with escalated privileges leading to High impact on Confidentiality, Integrity, and Availability of the application.
Quoted source text, attributed separately from HOL analysis.