How severe is CVE-2026-23687?

CVE-2026-23687 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-2026-23687 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (37th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-23687?

CVE-2026-23687 primarily affects Sap Sap Basis. In total, 18 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2026-23687?

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.

Does CVE-2026-23687 have an EU (EUVD) identifier?

Yes. CVE-2026-23687 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-6389.

When was CVE-2026-23687 published?

CVE-2026-23687 was published on 2026-02-10 and last updated on 2026-06-17.

CVE-2026-23687

CVE-2026-23687 is a high-severity vulnerability in Sap Sap Basis 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-347.

Key facts

Severity: High (CVSS 3.x base score 8.8)
EPSS exploit prediction: 0% (37th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-6389
Weakness: CWE-347
Affected product: Sap Sap Basis
Published: 2026-02-10
Last modified: 2026-06-17

Description

SAP NetWeaver Application Server ABAP and ABAP Platform allows an authenticated attacker with normal privileges to obtain a valid signed message and send modified signed XML documents to the verifier. This may result in acceptance of tampered identity information, unauthorized access to sensitive user data and potential disruption of normal system usage.

Frequently asked questions

What is CVE-2026-23687?: SAP NetWeaver Application Server ABAP and ABAP Platform allows an authenticated attacker with normal privileges to obtain a valid signed message and send modified signed XML documents to the verifier. This may result in acceptance of tampered identity information, unauthorized access to sensitive user data and potential disruption of normal system usage.
How severe is CVE-2026-23687?: CVE-2026-23687 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-2026-23687 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (37th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-23687?: CVE-2026-23687 primarily affects Sap Sap Basis. In total, 18 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2026-23687?: 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.
Does CVE-2026-23687 have an EU (EUVD) identifier?: Yes. CVE-2026-23687 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-6389.
When was CVE-2026-23687 published?: CVE-2026-23687 was published on 2026-02-10 and last updated on 2026-06-17.

References

Affected products (18)

cpe:2.3:a:sap:sap_basis:700:*:*:*:*:*:*:*
cpe:2.3:a:sap:sap_basis:701:*:*:*:*:*:*:*
cpe:2.3:a:sap:sap_basis:702:*:*:*:*:*:*:*
cpe:2.3:a:sap:sap_basis:731:*:*:*:*:*:*:*
cpe:2.3:a:sap:sap_basis:740:*:*:*:*:*:*:*
cpe:2.3:a:sap:sap_basis:750:*:*:*:*:*:*:*
cpe:2.3:a:sap:sap_basis:751:*:*:*:*:*:*:*
cpe:2.3:a:sap:sap_basis:752:*:*:*:*:*:*:*
cpe:2.3:a:sap:sap_basis:753:*:*:*:*:*:*:*
cpe:2.3:a:sap:sap_basis:754:*:*:*:*:*:*:*
cpe:2.3:a:sap:sap_basis:755:*:*:*:*:*:*:*
cpe:2.3:a:sap:sap_basis:756:*:*:*:*:*:*:*
cpe:2.3:a:sap:sap_basis:757:*:*:*:*:*:*:*
cpe:2.3:a:sap:sap_basis:758:*:*:*:*:*:*:*
cpe:2.3:a:sap:sap_basis:804:*:*:*:*:*:*:*
cpe:2.3:a:sap:sap_basis:916:*:*:*:*:*:*:*
cpe:2.3:a:sap:sap_basis:917:*:*:*:*:*:*:*
cpe:2.3:a:sap:sap_basis:918:*:*:*:*:*:*:*

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