How severe is CVE-2020-26818?

CVE-2020-26818 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2020-26818 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (66th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-26818?

CVE-2020-26818 primarily affects Sap Netweaver Application Server Abap. In total, 9 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2020-26818?

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-2020-26818 published?

CVE-2020-26818 was published on 2020-11-10 and last updated on 2026-06-17.

CVE-2020-26818

CVE-2020-26818 is a high-severity vulnerability in Sap Netweaver Application Server Abap with a CVSS 3.x base score of 8.8. 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: High (CVSS 3.x base score 8.8)
CVSS v2: 6.5
EPSS exploit prediction: 1% (66th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-862
Affected product: Sap Netweaver Application Server Abap
Published: 2020-11-10
Last modified: 2026-06-17

Description

SAP NetWeaver AS ABAP (Web Dynpro), versions - 731, 740, 750, 751, 752, 753, 754, 755, 782, allows an authenticated user to access Web Dynpro components, which reveals sensitive system information that would otherwise be restricted to highly privileged users because of missing authorization, resulting in Information Disclosure.

Frequently asked questions

What is CVE-2020-26818?: SAP NetWeaver AS ABAP (Web Dynpro), versions - 731, 740, 750, 751, 752, 753, 754, 755, 782, allows an authenticated user to access Web Dynpro components, which reveals sensitive system information that would otherwise be restricted to highly privileged users because of missing authorization, resulting in Information Disclosure.
How severe is CVE-2020-26818?: CVE-2020-26818 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2020-26818 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (66th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-26818?: CVE-2020-26818 primarily affects Sap Netweaver Application Server Abap. In total, 9 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2020-26818?: 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-2020-26818 published?: CVE-2020-26818 was published on 2020-11-10 and last updated on 2026-06-17.

References

Affected products (9)

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:782:*:*:*:*:*:*:*

More vulnerabilities in Sap Netweaver Application Server Abap

CVE-2022-22536 — Critical (CVSS 10.0): SAP NetWeaver Application Server ABAP, SAP NetWeaver Application Server Java, ABAP Platform, SAP Content Server 7.53…
CVE-2026-0488 — Critical (CVSS 9.9): An authenticated attacker in SAP CRM and SAP S/4HANA (Scripting Editor) could exploit a flaw in a generic function…
CVE-2023-40309 — Critical (CVSS 9.8): SAP CommonCryptoLib does not perform necessary authentication checks, which may result in missing or wrong…
CVE-2021-44231 — Critical (CVSS 9.8): Internally used text extraction reports allow an attacker to inject code that can be executed by the application. An…
CVE-2021-40499 — Critical (CVSS 9.8): Client-side printing services SAP Cloud Print Manager and SAPSprint for SAP NetWeaver Application Server for ABAP -…
CVE-2021-27610 — Critical (CVSS 9.8): SAP NetWeaver ABAP Server and ABAP Platform, versions - 700, 701, 702, 731, 740, 750, 751, 752, 753, 754, 755, 804,…

All CVEs affecting Sap Netweaver Application Server Abap →

Other CWE-862 (Missing Authorization) vulnerabilities

CVE-2026-101000 — Critical (CVSS 10.0): A vulnerability was determined in Netcore NBR100V2 1.3.240614.030928. This affects the function uci.apply of the file…
CVE-2026-97360 — Critical (CVSS 10.0): HFS2 version 2.4.0 and earlier contains an unauthenticated arbitrary file access vulnerability that allows…
CVE-2026-65381 — Critical (CVSS 10.0): A validation issue existed in the entitlement verification. This issue was addressed with improved validation of the…
CVE-2026-81648 — Critical (CVSS 10.0): The CryptoPayment Gateway WordPress plugin from 1.2.1 to 1.2.2 does not apply an authorization check on one of its AJAX…
CVE-2026-77770 — Critical (CVSS 10.0): The miniOrange 2FA WordPress plugin before 6.3.1, miniOrange 2FA WordPress plugin before 19.3 does not require a…
CVE-2026-65667 — Critical (CVSS 10.0): Missing authorization in Microsoft Teams allows an unauthorized attacker to elevate privileges over a network.

Browse all CWE-862 (Missing Authorization) vulnerabilities →