CVE-2025-64333
Unknown Unknown - Not Provided
BaseFortify

Publication date: 2025-11-26

Last updated on: 2025-12-05

Assigner: GitHub, Inc.

Description
Suricata is a network IDS, IPS and NSM engine developed by the OISF (Open Information Security Foundation) and the Suricata community. Prior to versions 7.0.13 and 8.0.2, a large HTTP content type, when logged can cause a stack overflow crashing Suricata. This issue has been patched in versions 7.0.13 and 8.0.2. A workaround for this issue involves limiting stream.reassembly.depth to less then half the stack size. Increasing the process stack size makes it less likely the bug will trigger.
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Meta Information
Published
2025-11-26
Last Modified
2025-12-05
Generated
2026-06-16
AI Q&A
2025-11-27
EPSS Evaluated
2026-06-15
NVD
CVE-2025-64333
Affected Vendors & Products
Showing 2 associated CPEs
Vendor Product Version / Range
oisf suricata to 7.0.13 (exc)
oisf suricata From 8.0.0 (inc) to 8.0.2 (exc)
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-787 The product writes data past the end, or before the beginning, of the intended buffer.
CWE-121 A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function).
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Executive Summary

This vulnerability in Suricata, a network IDS/IPS/NSM engine, occurs when logging a large HTTP content type, which can cause a stack overflow and crash the Suricata process. It affects versions prior to 7.0.13 and 8.0.2 and has been patched in those versions.

Impact Analysis

The vulnerability can cause Suricata to crash due to a stack overflow when processing large HTTP content types. This can lead to denial of service, reducing the effectiveness of network intrusion detection and prevention, potentially leaving the network unmonitored or unprotected during the crash.

Mitigation Strategies

To mitigate this vulnerability, update Suricata to version 7.0.13 or 8.0.2 or later where the issue is patched. As a workaround, limit the stream.reassembly.depth setting to less than half the process stack size. Additionally, increasing the process stack size can reduce the likelihood of the bug triggering.

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