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CVE-2026-53217

8.6 · HIGH

In the Linux kernel, the following vulnerability has been resolved: net: mvpp2: sync RX data at the hardware packet offset mvpp2 programs the RX queue packet offset, so hardware writes received d…

Published Jun 25, 2026EPSS 0.38%

Overview

CVE-2026-53217 is a high-severity vulnerability. It was published on June 25, 2026 and has a CVSS 3.1 base score of 8.6 (HIGH).

This vulnerability has a CVSS 3.1 base score of 8.6, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

In the Linux kernel, the following vulnerability has been resolved:

net: mvpp2: sync RX data at the hardware packet offset

mvpp2 programs the RX queue packet offset, so hardware writes received

data at dma_addr + MVPP2_SKB_HEADROOM. The current CPU sync starts at

dma_addr and only covers rx_bytes + MVPP2_MH_SIZE bytes, which syncs the

unused headroom and misses the same number of bytes at the packet tail.

On non-coherent DMA systems this can leave the CPU reading stale cache

contents for the end of the received frame.

Use dma_sync_single_range_for_cpu() with MVPP2_SKB_HEADROOM as the range

offset so the sync covers the Marvell header and packet data actually

written by hardware.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refgit.kernel.org/stable/c/180235600934bef6add3be637c296d6cf3272e67Refgit.kernel.org/stable/c/19f8bc139e9b149d1e5bf75ae761d1bb8dd3e7d8Refgit.kernel.org/stable/c/23548007b3c66d628fc7d6b80d1e23be04ea10d9Refgit.kernel.org/stable/c/60412bdd1b2576659eac23a23d2d9ff96228a643Refgit.kernel.org/stable/c/a13199fa224e9f776f4005d5037df03aa9ea8f37Refgit.kernel.org/stable/c/a3ad9b5767c89531fc7dae951b51b0933dcf7051Refgit.kernel.org/stable/c/bede0f481b9137d73d1cf64309cbe4b94818a5d6Refgit.kernel.org/stable/c/e302206ad84a407a7e5f3f6fe767ff5efaace689

How CyberStrike helps

Frequently asked questions

What is CVE-2026-53217?

CVE-2026-53217 is a high-severity vulnerability. It was published on June 25, 2026 and has a CVSS 3.1 base score of 8.6 (HIGH).

How severe is CVE-2026-53217?

This vulnerability has a CVSS 3.1 base score of 8.6, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2026-53217?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-53217?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-53217 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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