# CVE-2026-109800: Memory Corruption vulnerability in SAP Web Dispatcher

Status: published. Published: 2026-11-10. Updated: 2026-11-10.

SAP Web Dispatcher does not sufficiently validate certain inputs during processing, which could lead to memory corruption. An attacker authenticated as a non-administrative user could exploit this vulnerability by providing specially crafted input, causing the Web Dispatcher process to terminate without user interaction. As a result, the Web Dispatcher and all backend systems reachable through it become unavailable, leading to a high impact on availability. There is no impact on confidentiality or integrity of the application.

## Remediation

No remediation reported in collected sources

## Affected products and versions

- SAP_SE / SAP Web Dispatcher: KRNL64UC 7.53 (affected); WEBDISP 7.53 (affected); 7.54 (affected); 7.77 (affected); 7.93 (affected); 9.16 (affected); KERNEL 7.53 (affected); 9.20 (affected); 9.21 (affected). Source: CNA: sap

## Severity and prioritization

- CVSS 3.1: 7.7 (high); CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H; source: CNA: sap

- CISA KEV: No listing in collected sources

- EPSS: Not available

- SSVC: Not available

- Weaknesses: CWE-121

## Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

## References

- https://me.sap.com/notes/3803832 (CNA: sap)

- https://url.sap/sapsecuritypatchday (CNA: sap)

## Provenance

- CNA: sap: https://www.cve.org/CVERecord?id=CVE-2026-109800; retrieved 2026-11-10; source updated 2026-11-10

Revision: c12ba00e38125fcddb5e83290a5032ccbdc5c8d66e80645ce10fe4b9bc036f8a

Canonical: https://y2.dev/cve/CVE-2026-109800

## Agent and API access

Public CVE pages, Markdown, and JSON are free to read without an account or API key.

- Public catalog: https://y2.dev/cve/index.json. Follow nextCursor with the same search, filters, sort, and limit (1–100). A null cursor marks the end.

- WebMCP: search_cve_disclosures, get_cve_disclosure, get_cve_page_markdown, get_y2_cve_access. Available in compatible browsers.

- Cyber API: https://api.y2.dev/api/v2/cyber/cves and https://api.y2.dev/api/v2/cyber/cves/{cveId}.

- Y2 Pro or Elite: create a workspace API key with the intel:cyber scope and send Authorization: Bearer <Y2_API_KEY>. Setup: https://y2.dev/docs/api/create-key.

- x402: Pay per request without an account or API key. Omit Authorization, read the HTTP 402 PAYMENT-REQUIRED challenge, validate its current requirements, and retry with PAYMENT-SIGNATURE through an authorized payment client. These browser tools never make payments. Guide: https://y2.dev/docs/api/x402.

- OpenAPI: https://y2.dev/api/openapi.yaml. Agent access metadata: https://y2.dev/cve/agent.json.

Collected public records only. Check source status for coverage and freshness.