PT-2026-137150
CVE-2026-122127
·
Published
2026-11-04
·
Updated
2026-11-05
Description by
CVSS 4.0
8.7
HighMetricsAV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Name of the Vulnerable Software and Affected Versions
CESNET ipfixcol2 versions 2.7.1 through 2.8.x
Description
A heap-based buffer overflow exists in Lz4Decoder.cpp, allowing unauthenticated network peers to write past heap buffers. This occurs when an attacker specifies a small
ring buffer size followed by a large decompressed size, enabling the writing of up to 65535 controlled bytes, which can lead to a collector crash.Recommendations
Update to version 2.9.0.
Exploitability
Exploit
Fix
Impacts
Vendors
Affected products
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