CVE-2026-72249

CriticalCVSS 9.8/10Last modified Aug 17, 2026

Description

In the Linux kernel, the following vulnerability has been resolved:

netfilter: flowtable: use dst in this direction when pushing IPIP header

When pushing the IPIP header, the route of the other direction is used to calculate the headroom, use the route in this direction. Accessing the other tuple to set the IP source and destination is fine because this tuple does not provide such information to avoid storing redundant information. However, this tuple already provides the dst for this direction, this went unnoticed because this bug affects headroom and iph->frag_off only at this stage.

Metrics

CVSS 3.1 9.8/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected software

Source: the vendor's advisory (CNA). NVD analysis pending.

No affected versions have been published.

Timeline

Published
Aug 15, 2026
Last modified
Aug 17, 2026
NVD status
Received

Related CVEs from 2026

CVE-2026-72257.3A weakness has been identified in SourceCodester Pizzafy Ecommerce System 1.0. This vulnerability affects the function delete_menu of the fiCVE-2026-722507.8In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_conntrack_reasm: guard mac_header adjustment after IPv6 dCVE-2026-722519.8In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_nat_sip: reload possible stale data pointer quoting sashCVE-2026-722527.8In the Linux kernel, the following vulnerability has been resolved: netfilter: nft_set_pipapo: don't leak bad clone into future transactionCVE-2026-722537.5In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_conntrack_sip: validate skb_dst() before accessing it tcCVE-2026-722547.5In the Linux kernel, the following vulnerability has been resolved: netfilter: nft_fib: reject fib expression on the netdev egress hook A CVE-2026-722557.8In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_queue: pin bridge device while NFQUEUE holds fake dst ThCVE-2026-72256In the Linux kernel, the following vulnerability has been resolved: netfilter: xt_cluster: reject template conntracks in hash match xt_cluCVE-2026-72257In the Linux kernel, the following vulnerability has been resolved: ASoC: qcom: q6apm: fix NULL pointer dereference in graph_callback WhenCVE-2026-72258In the Linux kernel, the following vulnerability has been resolved: ASoC: mediatek: mt8183: Release reserved memory on cleanup The MT8183 CVE-2026-72259In the Linux kernel, the following vulnerability has been resolved: ASoC: mediatek: mt8192: Release reserved memory on cleanup The MT8192 CVE-2026-72267.3A security vulnerability has been detected in SourceCodester Pizzafy Ecommerce System 1.0. This issue affects the function login2 of the fil
CVE-2026-72249: Critical severity, CVSS 9.8 | Vulnix