Integer Overflow or Wraparound Affecting frr package, versions *


Severity

Recommended
0.0
medium
0
10

Based on CentOS security rating.

Threat Intelligence

EPSS
0.37% (29th percentile)

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  • Snyk IDSNYK-CENTOS9-FRR-16380133
  • published4 May 2026
  • disclosed30 Apr 2026

Introduced: 30 Apr 2026

CVE-2026-28532  (opens in a new tab)
CWE-190  (opens in a new tab)

How to fix?

There is no fixed version for Centos:9 frr.

NVD Description

Note: Versions mentioned in the description apply only to the upstream frr package and not the frr package as distributed by Centos. See How to fix? for Centos:9 relevant fixed versions and status.

FRRouting before 10.5.3 contains an integer overflow vulnerability in seven OSPF Traffic Engineering and Segment Routing TLV parser functions where a uint16_t accumulator variable truncates uint32_t values returned by the TLV_SIZE() macro, causing the loop termination condition to fail while pointer advancement continues unchecked. Attackers with an established OSPF adjacency can send a crafted LS Update packet with a malicious Type 10 or Type 11 Opaque LSA to trigger out-of-bounds memory reads and crash all affected routers in the OSPF area or autonomous system.

CVSS Base Scores

version 3.1