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Vulnerability record · CVE-2025-42940 · published 11 November 2025

CVE-2025-42940: Out-of-bounds write vulnerability

SAP CommonCryptoLib does not perform necessary boundary checks during pre-authentication parsing of manipulated ASN.1 data over the network. This may result in memory corruption followed by an application crash, hence leading to a high impact on availability. There is no impact on confidentiality or integrity.

7.5 CVSS 3.1 High EPSS 0.43% · top 65.6% CWE-787 · Out-of-bounds write Deferred
7.5CVSS 3.1 base score
0.43%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
2References
17 Jun 2026Last modified by NVD

Description

SAP CommonCryptoLib does not perform necessary boundary checks during pre-authentication parsing of manipulated ASN.1 data over the network. This may result in memory corruption followed by an application crash, hence leading to a high impact on availability. There is no impact on confidentiality or integrity.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References

LinkTags
https://me.sap.com/notes/3633049
https://url.sap/sapsecuritypatchday

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Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2025-42940), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.