CVE-2026-98497
Received
Received - Intake
Linux Kernel IPv6 IPsec Policy Mask Swap Vulnerability
Vulnerability report for CVE-2026-98497, including description, CVSS score, EPSS score, affected products, exploitability, helpful resources, and attack-flow context.
Publication date: 2026-10-18
Last updated on: 2026-10-18
Assigner: kernel.org
Description
Description
In the Linux kernel, the following vulnerability has been resolved:
net/mlx5e: fix swapped IPv6 IPsec policy masks
IPv6 XFRM policies may use different source and destination prefix
lengths. mlx5e_ipsec_policy_mask() builds the corresponding masks
independently, but setup_fte_addr6() installs each mask in the opposite
address field.
When the prefix lengths differ, this makes the source match use the
destination prefix and the destination match use the source prefix. The
resulting hardware rule can both miss traffic covered by the policy and
match traffic outside it.
Install each mask in its corresponding match field.
CVSS Scores
EPSS Scores
| Probability: | |
| Percentile: |
Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| Linux | Linux | ca7992f52c2cb5ef61fbfa590a2d7c926f290237 |
| Linux | Linux | ca7992f52c2cb5ef61fbfa590a2d7c926f290237 |
| Linux | Linux | ca7992f52c2cb5ef61fbfa590a2d7c926f290237 |
| Linux | Linux | 6.15 |
Helpful Resources
Exploitability
CWE
KEV
| CWE ID | Description |
|---|---|
| CWE-UNKNOWN |
