CVSS 3.1
9.8 criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HCVE-2026-72417
Critical (9.8). EPSS 0.6% chance of exploitation in the next 30 days.
In the Linux kernel, the following vulnerability has been resolved:
netfilter: flowtable: Validate iph->ihl in nf_flow_ip4_tunnel_proto()
Add sanity check for iph->ihl field in nf_flow_ip4_tunnel_proto() before
using it to compute the header size, avoiding out-of-bounds access with
malformed IP headers.
While at it, use iph->protocol instead of the hardcoded IPPROTO_IPIP
constant when setting ctx->tun.proto and reference ctx->tun.hdr_size
when updating ctx->offset.
Severity
- EPSS
- 0.6% chance of exploitation in the next 30 days; higher than 46% of CVEs (scores of 2026-10-31)
- Published
- Modified
- Record from
- the NVD, synced