CVE-2025-64332CWE-121CWE-787

CVE-2025-64332

High · published November 27, 2025

CVSS v3.1
7.5
EPSS
0%
Percentile
29.6
In the wild
Unconfirmed
What it is

⚡ A stack overflow lurks if you enable SWF decompression in Suricata versions before 7.0.13 and 8.0.2! That’s like opening a floodgate and watching everything crash down! 🌊 Think of it like a poorly designed amusement park ride. If it’s overloaded, everything comes crashing down, causing chaos for everyone on board! In this case, enabling SWF decompression can overwhelm Suricata's stack — and nobody wants a ride gone wrong! 🎢 An attacker could trigger this overflow, causing Suricata to crash and leaving your network unprotected. Imagine a security guard taking a nap while the doors are wide open — a recipe for disaster! It could potentially expose your system to threats, so keeping an eye on this is crucial.

Put simply

Think of it like a poorly designed amusement park ride. If it’s overloaded, everything comes crashing down, causing chaos for everyone on board! In this case, enabling SWF decompression can overwhelm Suricata's stack — and nobody wants a ride gone wrong! 🎢 This vulnerability involves a stack overflow that can occur during SWF decompression processes within Suricata, leading to application crashes if not properly managed; the fix requires updating to versions 7.0.13 or 8.0.2.

What to do

An attacker could trigger this overflow, causing Suricata to crash and leaving your network unprotected. Imagine a security guard taking a nap while the doors are wide open — a recipe for disaster! It could potentially expose your system to threats, so keeping an eye on this is crucial. To secure your system, update Suricata to version 7.0.13 or 8.0.2 immediately. If you need SWF decompression, adjust the `decompress-depth` setting in your `suricata.yaml` file to be lower than half your stack size for a temporary workaround. Disabling SWF decompression altogether is a safer bet! 🔒 You've got this! Implement these steps and keep your network safe and sound! 🛡️

The record
Technical detail
CVSS v3.1
7.5 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS v4.0
Not supplied
EPSS
0.00369 · 29.6th percentile
Weaknesses
CWE-121 · Stack-based Buffer Overflow; CWE-787 · Out-of-bounds Write
Published
2025-11-27T04:15Z
Affected products (2)
ProductVersionsFixed in
oisf/suricata< 7.0.137.0.13
oisf/suricata≥ 8.0.0, < 8.0.28.0.2
References (2)
EPSS history
Timeline
  • 26 NOV 22:59Z
    Suricata is vulnerable to a stack overflow on larger compressed data
    cvelistv5