CVE-2026-122130 (GCVE-0-2026-122130)

Vulnerability from cvelistv5 – Published: 2026-11-04 20:36 – Updated: 2026-11-05 19:39
VLAI
Title
CESNET ipfixcol2 2.3.0 before 2.9.0 Buffer Overflow via Forwarder Output Plugin
Summary
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.
Severity
8.3 (High)
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N
8.2 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-05 19:37 UTC
CWE
  • CWE-190 - Integer Overflow or Wraparound
Assigner
VulnCheck CNA under the mitre root
CNA scorecard B 84/100 over 7433 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
CESNET ipfixcol2 Affected: 2.3.0 , < 2.9.0 (semver)
guessed Create a notification for this product.
Date Public
2026-10-16 00:00
Credits
Deus Rex Michal Sedlak
Show details on NVD website
To clipboard 

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