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              "value": "AV:N - In common OVS deployments with conntrack (e.g. OVN/OpenStack security groups), a remote attacker\u2019s fragmented IPv4 packets are reassembled by ovs_ct_handle_fragments (setting MRU), then do_output calls ovs_fragment on output\u2014so the vulnerable path runs on unauthenticated network packet processing.\nAC:L - Sending fragmented IPv4 traffic that completes CT reassembly and is then output deterministically hits ovs_fragment; OVS+CT being configured is a normal deployment precondition for this subsystem, not an attacker-uncontrollable race or rare condition.\nPR:N - The network/CT path runs in the datapath receive path with no authentication; the attacker only needs to deliver packets to an OVS port that applies CT then output, and needs no local privileges on the host.\nUI:N - Exploitation is triggered by received packets processed automatically in the OVS datapath; no victim user action is required.\nS:U - Impact stays within the host kernel/networking authority (stack OOB read during fragmentation); it is not a VM escape, IOMMU bypass, or other cross-boundary issue.\nC:L - The flaw is a strictly bounded stack OOB read of a few rtable fields (e.g. rt_mtu_locked/rt_pmtu) past the temporary dst_entry, used only for MTU decisions\u2014limited disclosure, not an arbitrary/unbounded read primitive.\nI:N - This is a read-only stack OOB with no out-of-bounds write, UAF, or other kernel memory corruption write/control-flow primitive.\nA:H - The OOB access is reported as a KASAN stack-out-of-bounds fault in the fix, and a remote attacker can retrigger fragmentation repeatedly in softirq/datapath context, which is defensibly a high availability impact on hardened/debug kernels."
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