TI-2026-45642 Aliases CVE-2026-64077 GHSA-2pwc-rv94-9pp5

netfilter: ebtables: move to two-stage removal scheme

LOW 35CWE-362Published 2026-07-19 · Updated 2026-10-30

Key facts

Attack vector: Local
Privileges required: Low
User interaction: None
Attack complexity: Low
Impact type: —
Confidentiality · integrity · availability: High · High · High
Fix status: Partial Red Hat: 2 without a fix

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Red Hat.

Summary

In the Linux kernel, the following vulnerability has been resolved: netfilter: ebtables: move to two-stage removal scheme Like previous patches for x_tables, follow same pattern in ebtables. We can't reuse xt helpers: ebt_table struct layout is incompatible. table->ops assignment is now done while still holding the ebt mutex to make sure we never expose partially-filled table struct.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00136 3rd percentileScored 2026-11-07

Fix Partial Linux (Linux): 6.1.191, 6.6.160, 6.12.114 +3Red Hat: 2 without a fix

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Linux	Linux	5.15 and later	6.1.191, 6.6.160, 6.12.114, 6.18.34, 7.0.11, 7.1	Patch available	CNA

Linux VendorLinux Affected 5.15 and later Fixed in 6.1.191, 6.6.160, 6.12.114, 6.18.34, 7.0.11, 7.1 Patch available CNA

CPE configurations NVD · 4

CPE	Versions	Role	Vendor
cpe:2.3:o:linux:linux_kernel::::::::	5.15 to before 6.18.34; 6.19 to before 7.0.11	Vulnerable	Linux
cpe:2.3:o:linux:linux_kernel:7.1:rc1::::::	7.1 rc1	Vulnerable	Linux
cpe:2.3:o:linux:linux_kernel:7.1:rc2::::::	7.1 rc2	Vulnerable	Linux
cpe:2.3:o:linux:linux_kernel:7.1:rc3::::::	7.1 rc3	Vulnerable	Linux

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions 5.15 to before 6.18.34; 6.19 to before 7.0.11 Vulnerable ·Linux
cpe:2.3:o:linux:linux_kernel:7.1:rc1:*:*:*:*:*:* Versions 7.1 rc1 Vulnerable ·Linux
cpe:2.3:o:linux:linux_kernel:7.1:rc2:*:*:*:*:*:* Versions 7.1 rc2 Vulnerable ·Linux
cpe:2.3:o:linux:linux_kernel:7.1:rc3:*:*:*:*:*:* Versions 7.1 rc3 Vulnerable ·Linux

Remediation

Fix · CNA Linux (Linux) Fixed in 6.1.191, 6.6.160, 6.12.114, 6.18.34, 7.0.11, 7.1

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

Product	Status	Plan or fix
Red Hat Enterprise Linux 10	Affected	No fix yet: Fix deferred
Red Hat Enterprise Linux 6	Affected	No fix planned: Out of support scope

Not affected: 3 products

Red Hat Enterprise Linux 7
Red Hat Enterprise Linux 8
Red Hat Enterprise Linux 9

Timeline

2026-10-02 Threatist record created from CVE-2026-64077
2026-10-03 Alias added: GHSA-2pwc-rv94-9pp5
2026-10-16 CISA SSVC decision points changed
2026-10-19 Weakness changed · CISA ADP
2026-10-21 Fix available: Linux/[email protected], Linux/[email protected], Linux/Linux@6fe4c808b6cdb405ed64ea6e740d557bba3d7745 +1 · CNA
2026-10-21 2 new references · CNA
2026-10-30 Fix available: Linux/[email protected], Linux/Linux@b37e27f5d5cbb7723644fdf089e28a216d6093ed · CNA
2026-10-30 1 new reference · CNA
2026-11-06 CVSS score changed · Red Hat

References

Patch 3

Other 3

TI-2025-26358 tls: fix handling of zero-length records on the rx_list KEVCVSS 3.1CRITICAL 9.8
TI-2026-38352 netfilter: bridge: make ebt_snat ARP rewrite writable KEVCVSS 3.1HIGH 8.8
TI-2013-05264 The (1) get_user and (2) put_user API functions in the Linux kernel before 3.5.5 on the… KEVCVSS 3.1HIGH 8.8
TI-2022-00125 Integer overflow in kernel KEVCVSS 3.1HIGH 8.4
TI-2013-01864 The perf_swevent_init function in kernel/events/core.c in the Linux kernel before 3.8.9… KEVCVSS 3.1HIGH 8.4
TI-2021-05514 Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACE KEVCVSS 3.1HIGH 8.3

See all 15278 →

Sources

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