CVE-2026-23001 is a low severity vulnerability with a CVSS score of 0.0. No known exploits currently, and patches are available.
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Very low probability of exploitation
EPSS predicts the probability of exploitation in the next 30 days based on real-world threat data, complementing CVSS severity scores with actual risk assessment.
In the Linux kernel, the following vulnerability has been resolved:
macvlan: fix possible UAF in macvlan_forward_source()
Add RCU protection on (struct macvlan_source_entry)->vlan.
Whenever macvlan_hash_del_source() is called, we must clear entry->vlan pointer before RCU grace period starts.
This allows macvlan_forward_source() to skip over entries queued for freeing.
Note that macvlan_dev are already RCU protected, as they are embedded in a standard netdev (netdev_priv(ndev)).
https: //lore.kernel.org/netdev/[email protected]/T/#u