CVE-2025-42959

Missing Authentication check after implementation of SAP Security Note 3007182 and 3537476

Published Jul 8, 2025 CVSS 3.1 · 8.1 High EPSS < 1% KEV · Not listed

Description

An unauthenticated attacker may exploit a scenario where a Hashed Message Authentication Code (HMAC) credential, extracted from a system missing specific security patches, is reused in a replay attack against a different system. Even if the target system is fully patched, successful exploitation could result in complete system compromise, affecting confidentiality, integrity, and availability.

Affected Products

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

SAP_SE

SAP NetWeaver ABAP Server and ABAP Platform

unaffected

Version	Status	Constraints
`SAP_BASIS 700`	affected	—
`SAP_BASIS 701`	affected	—
`SAP_BASIS 702`	affected	—
`SAP_BASIS 731`	affected	—
`SAP_BASIS 740`	affected	—
`SAP_BASIS 750`	affected	—
`SAP_BASIS 751`	affected	—
`SAP_BASIS 752`	affected	—
`SAP_BASIS 753`	affected	—
`SAP_BASIS 754`	affected	—
`SAP_BASIS 755`	affected	—
`SAP_BASIS 756`	affected	—
`SAP_BASIS 757`	affected	—
`SAP_BASIS 758`	affected	—
`SAP_BASIS 914`	affected	—
`SAP_BASIS 915`	affected	—

No data.

No data available yet.

Remediation

No solution or workaround provided in the CVE record

Tracking

Advisories

Source	ID	Title
EUVD	EUVD-2025-20350	An unauthenticated attacker may exploit a scenario where a Hashed Message Authentication Code (HMAC) credential, extracted from a system missing specific security patches, is reused in a replay attack against a different system. Even if the target system is fully patched, successful exploitation could result in complete system compromise, affecting confidentiality, integrity, and availability.

Metrics

No CVSS v4.0

Attack Vector Network

Attack Complexity High

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploit prediction score: < 1% (0.562% probability within 30 days)

Exploitation none

Automatable no

Technical Impact total

References

Link	Providers
https://me.sap.com/notes/3600846
https://url.sap/sapsecuritypatchday

History

Jul 14, 2025 1:45 PM Scoring metrics updated View changes

Type	Values Removed	Values Added
Metrics	epss `{'score': 0.00067}`	epss `{'score': 0.0008}`

Jul 8, 2025 5:15 PM Scoring metrics updated View changes

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}`

Jul 8, 2025 12:45 AM Description updated. Title updated. Weaknesses updated. Added references. Scoring metrics updated View changes

Type	Values Removed	Values Added
Description		An unauthenticated attacker may exploit a scenario where a Hashed Message Authentication Code (HMAC) credential, extracted from a system missing specific security patches, is reused in a replay attack against a different system. Even if the target system is fully patched, successful exploitation could result in complete system compromise, affecting confidentiality, integrity, and availability.
Title		Missing Authentication check after implementation of SAP Security Note 3007182 and 3537476
Weaknesses		CWE-308
References		https://me.sap.com/notes/3600846 https://url.sap/sapsecuritypatchday
Metrics		cvssV3_1 `{'score': 8.1, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H'}`