User-context code execution via startup data deserialization
Published Sep 8, 2026 · Updated Sep 9, 2026
Insecure deserialization in SAP NetWeaver Business Client 8.00 and 8.10 allows local users to execute code at application startup. During startup, the client processes specially crafted locally stored data without sufficient validation, permitting arbitrary code execution in the launching user's context. A low-privileged local user must first replace that stored data; execution occurs when the application is next launched and can read, modify, or disrupt user-accessible resources.
Summary
What happened
Insecure deserialization in SAP NetWeaver Business Client 8.00 and 8.10 allows local users to execute code at application startup. During startup, the client processes specially crafted locally stored data without sufficient validation, permitting arbitrary code execution in the launching user's context. A low-privileged local user must first replace that stored data; execution occurs when the application is next launched and can read, modify, or disrupt user-accessible resources.
The record
- CVE
- CVE-2026-76967
- Published
- Sep 8, 2026
- Updated
- Sep 9, 2026
- Vendor
- SAP SE
- Product
- SAP NetWeaver Business Client
- Classifications
- CWE-502, T1203
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Sep 8, 2026CVE publishedPublication date reported by the CVE source.
- Sep 9, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
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- Affected versionversion=8.10
- Affected versionversion=BC-WD-CLT-BUS 8.00
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
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Weakness, pattern, technique
Public exploit references
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Technologies
Your stack
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Your stack
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