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CVE-2026-66767
Memory Corruption vulnerability in SAP NetWeaver Application Server for ABAP and ABAP Platform
High7.7EPSS 0.43%
- Published
- Updated
- Reserved
- Assigned by
- sap
Description
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.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| sapCNA (assigner) | 3.1 | High7.7 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L |
| NVDNVD · Awaiting Analysis | 3.1 | High7.7 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L |
- EPSS (exploitation in 30 days)
- 0.43% · top 63% of all CVEs (6 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: total
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.7.
Weakness
Affected products
SAP_SE · SAP NetWeaver Application Server for ABAP and ABAP Platform
- affected KRNL64NUC 7.22
- affected 7.22EXT
- affected KRNL64UC 7.22
- affected 7.53
- affected 8.04
- affected KERNEL 7.22
- affected 7.54
- affected 7.77
- affected 7.93
- affected 9.16
- affected 9.18
- affected 9.19
- affected 9.20
References (2)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2026-66767)Record last updated .