CVE-2025-38533
Linux Kernel buffer overflow
- Published16 Aug 2025
Description
In the Linux kernel, the following vulnerability has been resolved: net: libwx: fix the using of Rx buffer DMA The wx_rx_buffer structure contained two DMA address fields: 'dma' and 'page_dma'. However, only 'page_dma' was actually initialized and used to program the Rx descriptor. But 'dma' was uninitialized and used in some paths. This could lead to undefined behavior, including DMA errors or use-after-free, if the uninitialized 'dma' was used. Althrough such error has not yet occurred, it is worth fixing in the code.
CVSS 3.1 breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HAffected products
Remediation
References
Related CVEs
Recent high-severity vulnerabilities sharing a weakness type.
Frequently asked
Is CVE-2025-38533 being actively exploited?
CVE-2025-38533 is not in the CISA KEV catalog. Its EPSS exploit probability is 0.30%.
How severe is CVE-2025-38533?
CVE-2025-38533 has a CVSS 3.1 base score of 9.8, rated critical. EPSS estimates a 0.30% probability of exploitation.
Which products are affected by CVE-2025-38533?
Affected products include Linux Kernel.
How do I fix CVE-2025-38533?
Upgrade affected software to a fixed version, for example Linux Kernel 6.15.8 or later, then confirm no affected versions remain in your inventory.
How Secuno handles this
Secuno correlates vulnerabilities like CVE-2025-38533 against the real software inventory on every managed device, as each hourly inventory arrives. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.
Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.