How severe is CVE-2023-40308?

CVE-2023-40308 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-2023-40308 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (46th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-40308?

CVE-2023-40308 primarily affects Sap Commoncryptolib. In total, 47 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2023-40308?

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-2023-40308 published?

CVE-2023-40308 was published on 2023-09-12 and last updated on 2026-06-17.

CVE-2023-40308

CVE-2023-40308 is a high-severity vulnerability in Sap Commoncryptolib 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. The underlying weakness is classified as CWE-787.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 1% (46th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-787
Affected product: Sap Commoncryptolib
Published: 2023-09-12
Last modified: 2026-06-17

Description

SAP CommonCryptoLib allows an unauthenticated attacker to craft a request, which when submitted to an open port causes a memory corruption error in a library which in turn causes the target component to crash making it unavailable. There is no ability to view or modify any information.

Frequently asked questions

What is CVE-2023-40308?: SAP CommonCryptoLib allows an unauthenticated attacker to craft a request, which when submitted to an open port causes a memory corruption error in a library which in turn causes the target component to crash making it unavailable. There is no ability to view or modify any information.
How severe is CVE-2023-40308?: CVE-2023-40308 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-2023-40308 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (46th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-40308?: CVE-2023-40308 primarily affects Sap Commoncryptolib. In total, 47 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2023-40308?: 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-2023-40308 published?: CVE-2023-40308 was published on 2023-09-12 and last updated on 2026-06-17.

References

Affected products (47)

cpe:2.3:a:sap:commoncryptolib:8.0.0:*:*:*:*:*:*:*
cpe:2.3:a:sap:content_server:6.50:*:*:*:*:*:*:*
cpe:2.3:a:sap:content_server:7.53:*:*:*:*:*:*:*
cpe:2.3:a:sap:content_server:7.54:*:*:*:*:*:*:*
cpe:2.3:a:sap:extended_application_services_and_runtime:1.0:*:*:*:*:*:*:*
cpe:2.3:a:sap:hana_database:2.0:*:*:*:*:*:*:*
cpe:2.3:a:sap:host_agent:722:*:*:*:*:*:*:*
cpe:2.3:a:sap:netweaver_application_server_abap:7.22ext:*:*:*:*:*:*:*
cpe:2.3:a:sap:netweaver_application_server_abap:kernel_7.22:*:*:*:*:*:*:*
cpe:2.3:a:sap:netweaver_application_server_abap:kernel_7.53:*:*:*:*:*:*:*
cpe:2.3:a:sap:netweaver_application_server_abap:kernel_7.54:*:*:*:*:*:*:*
cpe:2.3:a:sap:netweaver_application_server_abap:kernel_7.77:*:*:*:*:*:*:*
cpe:2.3:a:sap:netweaver_application_server_abap:kernel_7.85:*:*:*:*:*:*:*
cpe:2.3:a:sap:netweaver_application_server_abap:kernel_7.89:*:*:*:*:*:*:*
cpe:2.3:a:sap:netweaver_application_server_abap:kernel_7.91:*:*:*:*:*:*:*
cpe:2.3:a:sap:netweaver_application_server_abap:kernel_7.92:*:*:*:*:*:*:*
cpe:2.3:a:sap:netweaver_application_server_abap:kernel_7.93:*:*:*:*:*:*:*
cpe:2.3:a:sap:netweaver_application_server_abap:kernel_8.04:*:*:*:*:*:*:*
cpe:2.3:a:sap:netweaver_application_server_abap:kernel64nuc_7.22:*:*:*:*:*:*:*
cpe:2.3:a:sap:netweaver_application_server_abap:kernel64nuc_7.22ext:*:*:*:*:*:*:*
cpe:2.3:a:sap:netweaver_application_server_abap:kernel64uc_7.22:*:*:*:*:*:*:*
cpe:2.3:a:sap:netweaver_application_server_abap:kernel64uc_7.22ext:*:*:*:*:*:*:*
cpe:2.3:a:sap:netweaver_application_server_abap:kernel64uc_7.53:*:*:*:*:*:*:*
cpe:2.3:a:sap:netweaver_application_server_abap:kernel64uc_8.04:*:*:*:*:*:*:*
cpe:2.3:a:sap:netweaver_application_server_java:kernel_7.22:*:*:*:*:*:*:*
cpe:2.3:a:sap:netweaver_application_server_java:kernel_7.53:*:*:*:*:*:*:*
cpe:2.3:a:sap:netweaver_application_server_java:kernel_7.54:*:*:*:*:*:*:*
cpe:2.3:a:sap:netweaver_application_server_java:kernel_7.77:*:*:*:*:*:*:*
cpe:2.3:a:sap:netweaver_application_server_java:kernel_7.85:*:*:*:*:*:*:*
cpe:2.3:a:sap:netweaver_application_server_java:kernel_7.89:*:*:*:*:*:*:*
cpe:2.3:a:sap:netweaver_application_server_java:kernel_7.91:*:*:*:*:*:*:*
cpe:2.3:a:sap:netweaver_application_server_java:kernel_7.92:*:*:*:*:*:*:*
cpe:2.3:a:sap:netweaver_application_server_java:kernel_7.93:*:*:*:*:*:*:*
cpe:2.3:a:sap:netweaver_application_server_java:kernel_8.04:*:*:*:*:*:*:*
cpe:2.3:a:sap:netweaver_application_server_java:kernel64nuc_7.22:*:*:*:*:*:*:*
cpe:2.3:a:sap:netweaver_application_server_java:kernel64nuc_7.22ext:*:*:*:*:*:*:*
cpe:2.3:a:sap:netweaver_application_server_java:kernel64uc_7.22:*:*:*:*:*:*:*
cpe:2.3:a:sap:netweaver_application_server_java:kernel64uc_7.22ext:*:*:*:*:*:*:*
cpe:2.3:a:sap:netweaver_application_server_java:kernel64uc_7.53:*:*:*:*:*:*:*
cpe:2.3:a:sap:netweaver_application_server_java:kernel64uc_8.04:*:*:*:*:*:*:*

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