CVE-2026-28532
Description
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.
How to fix
- frrouting frrouting10.5.3 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| frrouting frrouting | v < 10.5.3 | 10.5.3 |
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Attack Surface Management
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