Summary
| Parameter | Value |
|---|---|
| CVE ID | CVE-2026-76964 |
| Alert Source | GitHub Advisory - Critical Vulnerability |
| CVE Publication Year | 2026 |
| Date Published | 2026-11-10 |
| Vendor | SAP |
| Product | NetWeaver Application Server ABAP |
| Vulnerability Type | memory corruption, remote code execution (RCE) (CWE-1287) |
| SAP Note | 3778530 |
| CVSS Score | 10.0 (critical) |
| EPSS Score | No data |
| CISA KEV | No |
| Ransomware | Not confirmed |
Vulnerability Description
Source: NVD, SAP
SAP NetWeaver Application Server ABAP does not sufficiently validate certain network input processed by an internal component. An unauthenticated attacker could send specially crafted network traffic to trigger a memory corruption condition in the affected functionality. Successful exploitation could allow the attacker to execute arbitrary code and fully compromise the system, resulting in a high impact on confidentiality, integrity and availability of the system.
The flaw was published as part of the November 2026 SAP Security Patch Day. The attack requires no authentication.
Required Actions
- Apply the fix from SAP Note 3778530 (SAP Security Patch Day, November 2026) as a priority, since the flaw requires no authentication.
- Make sure service ports of ABAP systems are not reachable from the internet and, internally, only from the segments that need them.
- A separate flaw of the same type in SAP Web Dispatcher is tracked as CVE-2026-89126 (Note 3778556); check both components.
Who Is Affected?
This vulnerability affects SAP NetWeaver Application Server ABAP. NVD provides no CPE configuration; affected versions and support packages are listed in SAP Note 3778530 (requires an SAP for Me account). SAP systems are mainly used by mid-sized and large enterprises (ERP, S/4HANA, NetWeaver platforms), so also check systems operated by partners and service providers.
The same Patch Day covered eight other critical SAP flaws: CVE-2026-109795, CVE-2026-109798, CVE-2026-109803, CVE-2026-120017, CVE-2026-76965, CVE-2026-89103, CVE-2026-89119, CVE-2026-89126.
Sources
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Frequently asked questions
What is the CVE-2026-76964 vulnerability?
CVE-2026-76964 is a vulnerability in SAP NetWeaver Application Server ABAP — memory corruption, remote code execution (RCE) — rated CVSS 10 (critical severity). SAP released a fix in Note 3778530 as part of the November 2026 SAP Security Patch Day.
Does exploiting CVE-2026-76964 require authentication?
According to the vendor's CVSS assessment, the attack requires no authentication. The attack is carried out over the network.
How to protect against CVE-2026-76964?
Apply the fix from SAP Note 3778530 and, until it is deployed, restrict network access to the affected component. The note lists affected versions and any available workarounds.
Who is affected by CVE-2026-76964?
It affects organizations running SAP NetWeaver Application Server ABAP, typically mid-sized and large enterprises with SAP ERP or S/4HANA and the related NetWeaver components.
