How severe is CVE-2026-0509?

CVE-2026-0509 has a CVSS 3.x base score of 9.6, rated critical severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability high.

Is CVE-2026-0509 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (26th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-0509?

CVE-2026-0509 primarily affects Sap Netweaver As Abap Kernel. In total, 14 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2026-0509?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

Does CVE-2026-0509 have an EU (EUVD) identifier?

Yes. CVE-2026-0509 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-6472.

When was CVE-2026-0509 published?

CVE-2026-0509 was published on 2026-02-10 and last updated on 2026-06-17.

CVE-2026-0509

CVE-2026-0509 is a critical-severity vulnerability in Sap Netweaver As Abap Kernel with a CVSS 3.x base score of 9.6. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-862.

Key facts

Severity: Critical (CVSS 3.x base score 9.6)
EPSS exploit prediction: 0% (26th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-6472
Weakness: CWE-862
Affected product: Sap Netweaver As Abap Kernel
Published: 2026-02-10
Last modified: 2026-06-17

Description

SAP NetWeaver Application Server ABAP and ABAP Platform allows an authenticated, low-privileged user to perform background Remote Function Calls without the required S_RFC authorization in certain cases. This can result in a high impact on integrity and availability, and no impact on the confidentiality of the application.

Frequently asked questions

What is CVE-2026-0509?: SAP NetWeaver Application Server ABAP and ABAP Platform allows an authenticated, low-privileged user to perform background Remote Function Calls without the required S_RFC authorization in certain cases. This can result in a high impact on integrity and availability, and no impact on the confidentiality of the application.
How severe is CVE-2026-0509?: CVE-2026-0509 has a CVSS 3.x base score of 9.6, rated critical severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability high.
Is CVE-2026-0509 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (26th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-0509?: CVE-2026-0509 primarily affects Sap Netweaver As Abap Kernel. In total, 14 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2026-0509?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
Does CVE-2026-0509 have an EU (EUVD) identifier?: Yes. CVE-2026-0509 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-6472.
When was CVE-2026-0509 published?: CVE-2026-0509 was published on 2026-02-10 and last updated on 2026-06-17.

References

Affected products (14)

cpe:2.3:a:sap:netweaver_as_abap_kernel:7.22:*:*:*:*:*:*:*
cpe:2.3:a:sap:netweaver_as_abap_kernel:7.53:*:*:*:*:*:*:*
cpe:2.3:a:sap:netweaver_as_abap_kernel:7.54:*:*:*:*:*:*:*
cpe:2.3:a:sap:netweaver_as_abap_kernel:7.77:*:*:*:*:*:*:*
cpe:2.3:a:sap:netweaver_as_abap_kernel:7.89:*:*:*:*:*:*:*
cpe:2.3:a:sap:netweaver_as_abap_kernel:7.93:*:*:*:*:*:*:*
cpe:2.3:a:sap:netweaver_as_abap_kernel:9.16:*:*:*:*:*:*:*
cpe:2.3:a:sap:netweaver_as_abap_kernel:9.18:*:*:*:*:*:*:*
cpe:2.3:a:sap:netweaver_as_abap_kernel:9.19:*:*:*:*:*:*:*
cpe:2.3:a:sap:netweaver_as_abap_krnl64nuc:7.22:*:*:*:*:*:*:*
cpe:2.3:a:sap:netweaver_as_abap_krnl64nuc:7.22ext:*:*:*:*:*:*:*
cpe:2.3:a:sap:netweaver_as_abap_krnl64uc:7.22:*:*:*:*:*:*:*
cpe:2.3:a:sap:netweaver_as_abap_krnl64uc:7.22ext:*:*:*:*:*:*:*
cpe:2.3:a:sap:netweaver_as_abap_krnl64uc:7.53:*:*:*:*:*:*:*

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