CVE-2025-42959
Apache HMAC Reuse Replay Attack
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.
INFO
Published Date :
July 8, 2025, 1:15 a.m.
Last Modified :
July 8, 2025, 4:18 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
5.9
Exploitability Score :
2.2
Affected Products
The following products are affected by CVE-2025-42959
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2025-42959.
| URL | Resource |
|---|---|
| https://me.sap.com/notes/3600846 | |
| https://url.sap/sapsecuritypatchday |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2025-42959 vulnerability anywhere in the article.
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Cyber Security News
SAP July 2025 Patch Day – Patch for 27 Vulnerabilities Including 7 Critical One’s
SAP has released its July 2025 Security Patch Day update, addressing a significant number of vulnerabilities across its enterprise software portfolio. The comprehensive security update includes 27 new ... Read more
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Daily CyberSecurity
SAP’s July 2025 Patch Day Brings 27 New Notes, Multiple Critical RCE & Deserialization Flaws (CVSS 10.0)
SAP’s July 2025 Security Patch Day delivered a total of 27 new security notes and 3 updates to previously released advisories, with several critical vulnerabilities requiring immediate attention. Thes ... Read more
The following table lists the changes that have been made to the
CVE-2025-42959 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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New CVE Received by [email protected]
Jul. 08, 2025
Action Type Old Value New Value 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. Added CVSS V3.1 AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H Added CWE CWE-308 Added Reference https://me.sap.com/notes/3600846 Added Reference https://url.sap/sapsecuritypatchday
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2025-42959 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2025-42959
weaknesses.