Bug 2567735 (CVE-2026-122130) - CVE-2026-122130 ipfixcol2: ipfixcol2: Denial of Service via integer overflow in Forwarder output plugin
Summary: CVE-2026-122130 ipfixcol2: ipfixcol2: Denial of Service via integer overflow ...
Keywords:
Status: NEW
Alias: CVE-2026-122130
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-11-05 22:22 UTC by OSIDB Bzimport
Modified: 2026-11-06 00:53 UTC (History)
0 users

Fixed In Version:
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Description OSIDB Bzimport 2026-11-05 22:22:02 UTC 
CESNET ipfixcol2 2.3.0 before 2.9.0 contains an integer overflow vulnerability in the Forwarder output plugin that allows unauthenticated IPFIX exporters to overflow a heap buffer by wrapping uint16_t message length counters. Attackers can send near-65535-byte data sets and large templates to a collector forwarding over TCP to crash it and perform 2-byte writes to attacker-influenced addresses.
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