CVE-2026-109806
Received Received - Intake

Integer Overflow in SAP NetWeaver IGS

Publication date: 2026-11-10

Last updated on: 2026-11-10

Assigner: SAP SE

Description
SAP NetWeaver (Internet Graphics Service) does not sufficiently validate certain input values within incoming requests. An unauthenticated user could send a specially crafted request containing malformed image data, triggering an integer overflow that leads to repeated termination of the worker process. This results in a high impact on availability with no impact on integrity or confidentiality.

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Meta Information

Published
2026-11-10
Last Modified
2026-11-10
Generated
2026-11-10
AI Q&A
2026-11-10
EPSS Evaluated
N/A
NVD
CVE-2026-109806
EUVD
EUVD-2026-120688

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
sap netweaver *

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Exploitability

CWE
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KEV
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CWE ID Description
CWE-125 The product reads data past the end, or before the beginning, of the intended buffer.

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Executive Summary

This vulnerability in SAP NetWeaver's Internet Graphics Service allows an unauthenticated attacker to send a malformed image request causing an integer overflow. This overflow repeatedly crashes the worker process, leading to a denial of service with no impact on data integrity or confidentiality.

Detection Guidance

Detecting this vulnerability requires monitoring for repeated crashes of the Internet Graphics Service worker processes. Check SAP NetWeaver logs for worker process terminations and inspect incoming requests for malformed image data. Use network traffic analysis tools to identify unusually large or malformed image requests targeting the service.

Impact Analysis

The vulnerability can cause system downtime by repeatedly crashing the service, affecting availability. It does not compromise data integrity or confidentiality but may disrupt business operations relying on SAP NetWeaver.

Compliance Impact

This vulnerability primarily impacts availability, which may lead to non-compliance with regulations requiring high system uptime, such as GDPR (data processing continuity) or HIPAA (service availability for healthcare systems).

Mitigation Strategies

Apply the official SAP security note 3809934 to patch the Internet Graphics Service in SAP NetWeaver. Monitor network traffic for malformed image data requests targeting the service. Restrict access to the service via network segmentation or firewall rules until patched.

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