CVE-2026-66767

7.7 highEPSS 0.4%

High (7.7). EPSS 0.4% chance of exploitation in the next 30 days.

SAP NetWeaver Application Server for ABAP and ABAP Platform allows an unauthenticated user to send a specially crafted packet that triggers reprocessing of a previously buffered user request, potentially hijacking another user's session under narrow timing conditions. Successful exploitation could result in high impact on confidentiality and integrity, with low impact on availability of the application.

Severity

CVSS 3.1

7.7 high

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L

EPSS: 0.4% chance of exploitation in the next 30 days; higher than 36% of CVEs (scores of 2026-10-31)
CWE: CWE-191
Published: 2026-09-08
Modified: 2026-09-09
Record from: the NVD, synced 2026-10-19

References

https://me.sap.com/notes/3757002
https://url.sap/sapsecuritypatchday

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