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CVE-2026-88357

7.5 · HIGH

nDPI 5.1.0 contains a memory access issue in the DNS dissector and serializer deserialization code.

Published Sep 24, 2026CWE-1335EPSS 0.60%

Overview

CVE-2026-88357 is a high-severity vulnerability. It was published on September 24, 2026 and has a CVSS 3.1 base score of 7.5 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

nDPI 5.1.0 contains a memory access issue in the DNS dissector and serializer deserialization code. Specially crafted network input can cause byte-buffer addresses at odd offsets to be cast to uint16_t or wider integer pointers and directly dereferenced without alignment checks. This results in undefined behavior and can cause process termination in UBSan-instrumented builds or on strict-alignment architectures, leading to denial of service.

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

GitHubgithub.com/ntop/nDPI/issues/3213GitHubgithub.com/ntop/nDPI/pull/3231GitHubgithub.com/utoni/nDPI/commit/6698f14bf6025394a537fe23f413cf79e9d13594GitHubgithub.com/utoni/nDPI/commit/694231bb43ff21f452fbc2b53fcf6cdc9a99f75fGitHubgithub.com/utoni/nDPI/commit/6ce1280c52ed52a97332c3fe58fd2b47b867ec6eGitHubgithub.com/utoni/nDPI/commit/8fc3b439920021a77165f8aee4f81b25bc88629eGitHubgithub.com/ntop/nDPI/issues/3213

How CyberStrike helps

Frequently asked questions

What is CVE-2026-88357?

CVE-2026-88357 is a high-severity vulnerability. It was published on September 24, 2026 and has a CVSS 3.1 base score of 7.5 (HIGH).

How severe is CVE-2026-88357?

This vulnerability has a CVSS 3.1 base score of 7.5, 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-2026-88357?

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-2026-88357?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-88357 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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