How severe is CVE-2018-2433?

CVE-2018-2433 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2018-2433 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (61st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-2433?

CVE-2018-2433 primarily affects Sap Sap Kernel. In total, 7 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2018-2433?

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

When was CVE-2018-2433 published?

CVE-2018-2433 was published on 2018-07-10 and last updated on 2026-06-17.

CVE-2018-2433

CVE-2018-2433 is a high-severity vulnerability in Sap Sap Kernel with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 1% (61st percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Sap Sap Kernel
Published: 2018-07-10
Last modified: 2026-06-17

Description

SAP Gateway (SAP KERNEL 32 NUC, SAP KERNEL 32 Unicode, SAP KERNEL 64 NUC, SAP KERNEL 64 Unicode 7.21, 7.21EXT, 7.22 and 7.22EXT; SAP KERNEL 7.21, 7.22, 7.45, 7.49 and 7.53) allows an attacker to prevent legitimate users from accessing a service, either by crashing or flooding the service.

Frequently asked questions

What is CVE-2018-2433?: SAP Gateway (SAP KERNEL 32 NUC, SAP KERNEL 32 Unicode, SAP KERNEL 64 NUC, SAP KERNEL 64 Unicode 7.21, 7.21EXT, 7.22 and 7.22EXT; SAP KERNEL 7.21, 7.22, 7.45, 7.49 and 7.53) allows an attacker to prevent legitimate users from accessing a service, either by crashing or flooding the service.
How severe is CVE-2018-2433?: CVE-2018-2433 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2018-2433 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (61st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-2433?: CVE-2018-2433 primarily affects Sap Sap Kernel. In total, 7 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2018-2433?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2018-2433 published?: CVE-2018-2433 was published on 2018-07-10 and last updated on 2026-06-17.

References

Affected products (7)

cpe:2.3:a:sap:sap_kernel:7.21:*:*:*:*:*:*:*
cpe:2.3:a:sap:sap_kernel:7.21ext:*:*:*:*:*:*:*
cpe:2.3:a:sap:sap_kernel:7.22:*:*:*:*:*:*:*
cpe:2.3:a:sap:sap_kernel:7.22ext:*:*:*:*:*:*:*
cpe:2.3:a:sap:sap_kernel:7.45:*:*:*:*:*:*:*
cpe:2.3:a:sap:sap_kernel:7.49:*:*:*:*:*:*:*
cpe:2.3:o:sap:sap_kernel:7.53:*:*:*:*:*:*:*

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