0.0
NA
CVE-2026-72246
netfilter: flowtable: use correct direction to set up tunnel route
Overview
Description
Rejected reason: This CVE ID has been rejected or withdrawn by its CVE Numbering Authority.
Details
INFO
Published Date :
Aug. 15, 2026, 6:21 a.m.
Last Modified :
Aug. 17, 2026, 6:18 a.m.
Remotely Exploit :
No
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Solution
Update the Linux kernel to resolve a flowtable routing issue.
- Update the Linux kernel to the latest version.
- Apply the relevant Netfilter flowtable patch.
- Ensure correct tunnel route setup.
- Remove redundant dst_release() calls.
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The following list is the news that have been mention
CVE-2026-72246 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-72246 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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CVE Rejected by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Aug. 17, 2026
Action Type Old Value New Value -
CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Aug. 17, 2026
Action Type Old Value New Value Changed Description In the Linux kernel, the following vulnerability has been resolved: netfilter: flowtable: use correct direction to set up tunnel route The layer 2 encapsulation and layer 3 tunnel information in the xmit path is taken from the other tuple, because the tunnel information that is included in the tuple for hashtable lookups is also used to perform the egress encapsulation in the transmit path. This patch uses the correct direction when setting up the tunnel, the original proposed patch to address this fix uses the reversed direction. While at it, remove the redundant check to call dst_release() to drop the reference on the dst that was obtained from the forward path, which is not useful in the direct xmit path unless tunneling is performed. Rejected reason: This CVE ID has been rejected or withdrawn by its CVE Numbering Authority. Removed Reference kernel.org: https://git.kernel.org/stable/c/392d033fd372268015bc5a54ba7c593ba44940d1 Removed Reference kernel.org: https://git.kernel.org/stable/c/90941d9c925d66a482c9121919ec3546a6988c16 Removed Affected [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '0880c4ed122d0cddc9f29a2b28f055d1f24f0fca', 'lessThan': '392d033fd372268015bc5a54ba7c593ba44940d1', 'versionType': 'git'}, {'status': 'affected', 'version': 'fa7395c02d95e51bad2952325d2d6503bfbad437', 'lessThan': '90941d9c925d66a482c9121919ec3546a6988c16', 'versionType': 'git'}], 'programFiles': ['net/netfilter/nf_flow_table_core.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '7.2-rc3'}, {'status': 'unaffected', 'version': '0', 'lessThan': '7.2-rc3', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '7.2-rc4', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['net/netfilter/nf_flow_table_core.c'], 'defaultStatus': 'affected'}] -
New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Aug. 15, 2026
Action Type Old Value New Value Added Affected [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '0880c4ed122d0cddc9f29a2b28f055d1f24f0fca', 'lessThan': '392d033fd372268015bc5a54ba7c593ba44940d1', 'versionType': 'git'}, {'status': 'affected', 'version': 'fa7395c02d95e51bad2952325d2d6503bfbad437', 'lessThan': '90941d9c925d66a482c9121919ec3546a6988c16', 'versionType': 'git'}], 'programFiles': ['net/netfilter/nf_flow_table_core.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '7.2-rc3'}, {'status': 'unaffected', 'version': '0', 'lessThan': '7.2-rc3', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '7.2-rc4', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['net/netfilter/nf_flow_table_core.c'], 'defaultStatus': 'affected'}] Added Description In the Linux kernel, the following vulnerability has been resolved: netfilter: flowtable: use correct direction to set up tunnel route The layer 2 encapsulation and layer 3 tunnel information in the xmit path is taken from the other tuple, because the tunnel information that is included in the tuple for hashtable lookups is also used to perform the egress encapsulation in the transmit path. This patch uses the correct direction when setting up the tunnel, the original proposed patch to address this fix uses the reversed direction. While at it, remove the redundant check to call dst_release() to drop the reference on the dst that was obtained from the forward path, which is not useful in the direct xmit path unless tunneling is performed. Added Reference https://git.kernel.org/stable/c/392d033fd372268015bc5a54ba7c593ba44940d1 Added Reference https://git.kernel.org/stable/c/90941d9c925d66a482c9121919ec3546a6988c16
EPSS is a daily estimate of the probability of exploitation activity
being observed over the next 30 days. Following chart shows the EPSS
score history of the vulnerability.