CVE-2025-23156
CVE-2025-23156 is a high-severity vulnerability in Linux Linux Kernel with a CVSS 3.x base score of 7.1. 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-125.
Key facts
- Severity: High (CVSS 3.x base score 7.1)
- EPSS exploit prediction: 0% (8th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2025-13087
- Weakness: CWE-125
- Affected product: Linux Linux Kernel
- Published:
- Last modified:
Description
In the Linux kernel, the following vulnerability has been resolved: media: venus: hfi_parser: refactor hfi packet parsing logic words_count denotes the number of words in total payload, while data points to payload of various property within it. When words_count reaches last word, data can access memory beyond the total payload. This can lead to OOB access. With this patch, the utility api for handling individual properties now returns the size of data consumed. Accordingly remaining bytes are calculated before parsing the payload, thereby eliminates the OOB access possibilities.
Frequently asked questions
- What is CVE-2025-23156?
- In the Linux kernel, the following vulnerability has been resolved: media: venus: hfi_parser: refactor hfi packet parsing logic words_count denotes the number of words in total payload, while data points to payload of various property within it. When words_count reaches last word, data can access memory beyond the total payload. This can lead to OOB access. With this patch, the utility api for handling individual properties now returns the size of data consumed. Accordingly remaining bytes are calculated before parsing the payload, thereby eliminates the OOB access possibilities.
- How severe is CVE-2025-23156?
- CVE-2025-23156 has a CVSS 3.x base score of 7.1, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability high.
- Is CVE-2025-23156 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (8th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2025-23156?
- CVE-2025-23156 primarily affects Linux Linux Kernel. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2025-23156?
- 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-2025-23156 have an EU (EUVD) identifier?
- Yes. CVE-2025-23156 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-13087.
- When was CVE-2025-23156 published?
- CVE-2025-23156 was published on 2025-05-01 and last updated on 2026-06-17.
References
- https://git.kernel.org/stable/c/05b07e52a0d08239147ba3460045855f4fb398de
- https://git.kernel.org/stable/c/0beabe9b49190a02321b02792b29fc0f0e28b51f
- https://git.kernel.org/stable/c/0f9a4bab7d83738963365372e4745854938eab2d
- https://git.kernel.org/stable/c/6d278c5548d840c4d85d445347b2a5c31b2ab3a0
- https://git.kernel.org/stable/c/9edaaa8e3e15aab1ca413ab50556de1975bcb329
- https://git.kernel.org/stable/c/a736c72d476d1c7ca7be5018f2614ee61168ad01
- https://git.kernel.org/stable/c/bb3fd8b7906a12dc2b61389abb742bf6542d97fb
- https://git.kernel.org/stable/c/f195e94c7af921d99abd79f57026a218d191d2c7
- https://lists.debian.org/debian-lts-announce/2025/05/msg00030.html
- https://lists.debian.org/debian-lts-announce/2025/05/msg00045.html
Affected products (2)
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
- cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*
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