How severe is CVE-2021-40496?

CVE-2021-40496 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2021-40496 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (56th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-40496?

CVE-2021-40496 primarily affects Sap Netweaver Abap. In total, 28 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2021-40496?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2021-40496 published?

CVE-2021-40496 was published on 2021-10-12 and last updated on 2026-06-17.

CVE-2021-40496

CVE-2021-40496 is a medium-severity vulnerability in Sap Netweaver Abap with a CVSS 3.x base score of 4.3. 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-668.

Key facts

Severity: Medium (CVSS 3.x base score 4.3)
CVSS v2: 4.0
EPSS exploit prediction: 1% (56th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-668
Affected product: Sap Netweaver Abap
Published: 2021-10-12
Last modified: 2026-06-17

Description

SAP Internet Communication framework (ICM) - versions 700, 701, 702, 730, 731, 740, 750, 751, 752, 753, 754, 755, 756, 785, allows an attacker with logon functionality, to exploit the authentication function by using POST and form field to repeat executions of the initial command by a GET request and exposing sensitive data. This vulnerability is normally exposed over the network and successful exploitation can lead to exposure of data like system details.

Frequently asked questions

What is CVE-2021-40496?: SAP Internet Communication framework (ICM) - versions 700, 701, 702, 730, 731, 740, 750, 751, 752, 753, 754, 755, 756, 785, allows an attacker with logon functionality, to exploit the authentication function by using POST and form field to repeat executions of the initial command by a GET request and exposing sensitive data. This vulnerability is normally exposed over the network and successful exploitation can lead to exposure of data like system details.
How severe is CVE-2021-40496?: CVE-2021-40496 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2021-40496 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (56th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-40496?: CVE-2021-40496 primarily affects Sap Netweaver Abap. In total, 28 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2021-40496?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-40496 published?: CVE-2021-40496 was published on 2021-10-12 and last updated on 2026-06-17.

References

Affected products (28)

cpe:2.3:a:sap:netweaver_abap:700:*:*:*:*:*:*:*
cpe:2.3:a:sap:netweaver_abap:701:*:*:*:*:*:*:*
cpe:2.3:a:sap:netweaver_abap:702:*:*:*:*:*:*:*
cpe:2.3:a:sap:netweaver_abap:730:*:*:*:*:*:*:*
cpe:2.3:a:sap:netweaver_abap:731:*:*:*:*:*:*:*
cpe:2.3:a:sap:netweaver_abap:740:*:*:*:*:*:*:*
cpe:2.3:a:sap:netweaver_abap:750:*:*:*:*:*:*:*
cpe:2.3:a:sap:netweaver_abap:751:*:*:*:*:*:*:*
cpe:2.3:a:sap:netweaver_abap:752:*:*:*:*:*:*:*
cpe:2.3:a:sap:netweaver_abap:753:*:*:*:*:*:*:*
cpe:2.3:a:sap:netweaver_abap:754:*:*:*:*:*:*:*
cpe:2.3:a:sap:netweaver_abap:755:*:*:*:*:*:*:*
cpe:2.3:a:sap:netweaver_abap:756:*:*:*:*:*:*:*
cpe:2.3:a:sap:netweaver_abap:785:*:*:*:*:*:*:*
cpe:2.3:a:sap:netweaver_application_server_abap:700:*:*:*:*:*:*:*
cpe:2.3:a:sap:netweaver_application_server_abap:701:*:*:*:*:*:*:*
cpe:2.3:a:sap:netweaver_application_server_abap:702:*:*:*:*:*:*:*
cpe:2.3:a:sap:netweaver_application_server_abap:730:*:*:*:*:*:*:*
cpe:2.3:a:sap:netweaver_application_server_abap:731:*:*:*:*:*:*:*
cpe:2.3:a:sap:netweaver_application_server_abap:740:*:*:*:*:*:*:*
cpe:2.3:a:sap:netweaver_application_server_abap:750:*:*:*:*:*:*:*
cpe:2.3:a:sap:netweaver_application_server_abap:751:*:*:*:*:*:*:*
cpe:2.3:a:sap:netweaver_application_server_abap:752:*:*:*:*:*:*:*
cpe:2.3:a:sap:netweaver_application_server_abap:753:*:*:*:*:*:*:*
cpe:2.3:a:sap:netweaver_application_server_abap:754:*:*:*:*:*:*:*
cpe:2.3:a:sap:netweaver_application_server_abap:755:*:*:*:*:*:*:*
cpe:2.3:a:sap:netweaver_application_server_abap:756:*:*:*:*:*:*:*
cpe:2.3:a:sap:netweaver_application_server_abap:785:*:*:*:*:*:*:*

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