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.
Metrics
Affected Vendors & Products
References
History
Fri, 06 Nov 2026 22:00:00 +0000
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Cesnet
Cesnet ipfixcol2 |
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Cesnet
Cesnet ipfixcol2 |
Fri, 06 Nov 2026 19:30:00 +0000
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ssvc
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Wed, 04 Nov 2026 20:45:00 +0000
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| Description | 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. | |
| Title | CESNET ipfixcol2 2.3.0 before 2.9.0 Buffer Overflow via Forwarder Output Plugin | |
| Weaknesses | CWE-190 | |
| References |
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| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: VulnCheck
Published: 2026-11-04T20:36:50.335Z
Updated: 2026-11-05T19:39:01.965Z
Reserved: 2026-11-04T18:13:10.475Z
Link: CVE-2026-122130
Updated: 2026-11-05T19:37:23.215Z
Status : Received
Published: 2026-11-04T21:18:08.543
Modified: 2026-11-05T20:17:49.700
Link: CVE-2026-122130
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