Vulnerability Details CVE-2026-28532
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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.0
EPSS Ranking 3.4%
CVSS Severity
CVSS v3 Score 6.5
Products affected by CVE-2026-28532
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cpe:2.3:a:frrouting:frrouting:-
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cpe:2.3:a:frrouting:frrouting:10.0
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cpe:2.3:a:frrouting:frrouting:10.0.1
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cpe:2.3:a:frrouting:frrouting:10.0.2
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cpe:2.3:a:frrouting:frrouting:10.0.3
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cpe:2.3:a:frrouting:frrouting:10.0.4
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cpe:2.3:a:frrouting:frrouting:10.0.5
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cpe:2.3:a:frrouting:frrouting:10.1
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cpe:2.3:a:frrouting:frrouting:10.1.1
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cpe:2.3:a:frrouting:frrouting:10.1.2
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cpe:2.3:a:frrouting:frrouting:10.1.3
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cpe:2.3:a:frrouting:frrouting:10.1.4
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cpe:2.3:a:frrouting:frrouting:10.1.5
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cpe:2.3:a:frrouting:frrouting:10.2
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cpe:2.3:a:frrouting:frrouting:10.2.1
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cpe:2.3:a:frrouting:frrouting:10.2.2
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cpe:2.3:a:frrouting:frrouting:10.2.3
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cpe:2.3:a:frrouting:frrouting:10.2.4
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cpe:2.3:a:frrouting:frrouting:10.2.5
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cpe:2.3:a:frrouting:frrouting:10.2.6
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cpe:2.3:a:frrouting:frrouting:10.3
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cpe:2.3:a:frrouting:frrouting:10.3.1
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cpe:2.3:a:frrouting:frrouting:10.3.2
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cpe:2.3:a:frrouting:frrouting:10.3.3
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cpe:2.3:a:frrouting:frrouting:10.3.4
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cpe:2.3:a:frrouting:frrouting:10.4.0
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cpe:2.3:a:frrouting:frrouting:10.4.1
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cpe:2.3:a:frrouting:frrouting:10.4.2
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cpe:2.3:a:frrouting:frrouting:10.4.3
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cpe:2.3:a:frrouting:frrouting:10.4.4
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cpe:2.3:a:frrouting:frrouting:10.5.0
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cpe:2.3:a:frrouting:frrouting:10.5.1
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cpe:2.3:a:frrouting:frrouting:10.5.2
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cpe:2.3:a:frrouting:frrouting:2.0
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cpe:2.3:a:frrouting:frrouting:2.0.1
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cpe:2.3:a:frrouting:frrouting:2.0.2
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cpe:2.3:a:frrouting:frrouting:3.0
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cpe:2.3:a:frrouting:frrouting:3.0.1
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cpe:2.3:a:frrouting:frrouting:3.0.2
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cpe:2.3:a:frrouting:frrouting:3.0.3
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cpe:2.3:a:frrouting:frrouting:3.0.4
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cpe:2.3:a:frrouting:frrouting:4.0
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cpe:2.3:a:frrouting:frrouting:4.0.1
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cpe:2.3:a:frrouting:frrouting:5.0
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cpe:2.3:a:frrouting:frrouting:5.0.1
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cpe:2.3:a:frrouting:frrouting:5.0.2
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cpe:2.3:a:frrouting:frrouting:6.0
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cpe:2.3:a:frrouting:frrouting:6.0.1
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cpe:2.3:a:frrouting:frrouting:6.0.2
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cpe:2.3:a:frrouting:frrouting:6.0.3
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cpe:2.3:a:frrouting:frrouting:7.0
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cpe:2.3:a:frrouting:frrouting:7.0.1
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cpe:2.3:a:frrouting:frrouting:7.1
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cpe:2.3:a:frrouting:frrouting:7.2
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cpe:2.3:a:frrouting:frrouting:7.2.1
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cpe:2.3:a:frrouting:frrouting:7.3
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cpe:2.3:a:frrouting:frrouting:7.3.1
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cpe:2.3:a:frrouting:frrouting:7.4
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cpe:2.3:a:frrouting:frrouting:7.5
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cpe:2.3:a:frrouting:frrouting:7.5.1
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cpe:2.3:a:frrouting:frrouting:8.0
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cpe:2.3:a:frrouting:frrouting:8.0.1
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cpe:2.3:a:frrouting:frrouting:8.1
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cpe:2.3:a:frrouting:frrouting:8.2
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cpe:2.3:a:frrouting:frrouting:8.2.1
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cpe:2.3:a:frrouting:frrouting:8.2.2
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cpe:2.3:a:frrouting:frrouting:8.3
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cpe:2.3:a:frrouting:frrouting:8.3.1
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cpe:2.3:a:frrouting:frrouting:8.3.2
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cpe:2.3:a:frrouting:frrouting:8.4
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cpe:2.3:a:frrouting:frrouting:8.4.1
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cpe:2.3:a:frrouting:frrouting:8.4.2
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cpe:2.3:a:frrouting:frrouting:8.4.3
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cpe:2.3:a:frrouting:frrouting:8.4.5
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cpe:2.3:a:frrouting:frrouting:8.5
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cpe:2.3:a:frrouting:frrouting:8.5.1
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cpe:2.3:a:frrouting:frrouting:8.5.3
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cpe:2.3:a:frrouting:frrouting:8.5.4
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cpe:2.3:a:frrouting:frrouting:8.5.5
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cpe:2.3:a:frrouting:frrouting:8.5.6
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cpe:2.3:a:frrouting:frrouting:8.5.7
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cpe:2.3:a:frrouting:frrouting:9.0
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cpe:2.3:a:frrouting:frrouting:9.0.1
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cpe:2.3:a:frrouting:frrouting:9.0.2
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cpe:2.3:a:frrouting:frrouting:9.0.3
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cpe:2.3:a:frrouting:frrouting:9.0.4
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cpe:2.3:a:frrouting:frrouting:9.0.5
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cpe:2.3:a:frrouting:frrouting:9.1
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cpe:2.3:a:frrouting:frrouting:9.1.1
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cpe:2.3:a:frrouting:frrouting:9.1.2
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cpe:2.3:a:frrouting:frrouting:9.1.3