# CVE-2026-64412: netfilter: ebtables: module names must be null-terminated

Status: published. Published: 2026-07-25. Updated: 2026-11-10.

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

netfilter: ebtables: module names must be null-terminated

We need to explicitly check the length, else we may pass non-null
terminated string to request_module().

## Remediation

No remediation reported in collected sources

## Affected products and versions

- Linux / Linux: ≥ bcf4934288402be3464110109a4dae3bd6fb3e93; < 43dd2332b8a27b3ac5108791680cade654ab0f96 (affected, git); ≥ bcf4934288402be3464110109a4dae3bd6fb3e93; < 5777c8f1c3610786d8482b8f620f40fccaf1542b (affected, git); ≥ bcf4934288402be3464110109a4dae3bd6fb3e93; < 0ddca0f90fa3395111d078ae4399615cf3ea94aa (affected, git); ≥ bcf4934288402be3464110109a4dae3bd6fb3e93; < d2367d99f2455f373996d9ddbe833dbe9f942213 (affected, git); ≥ bcf4934288402be3464110109a4dae3bd6fb3e93; < da32e78bbb187ed7b137e0007034185570a3a172 (affected, git); ≥ bcf4934288402be3464110109a4dae3bd6fb3e93; < 13a5f532e3a4fc75c33060a026def1572c208643 (affected, git); ≥ bcf4934288402be3464110109a4dae3bd6fb3e93; < 7b217960e88b5d2d1e8cdcbcaf3bdf6fe199a0c8 (affected, git); ≥ bcf4934288402be3464110109a4dae3bd6fb3e93; < 084d23f818321390509e9738a0b08bbf46df6425 (affected, git). Source: CNA: Linux
- Linux / Linux: 4.6 (affected); ≥ 0; < 4.6 (unaffected, semver); ≥ 5.10.261; ≤ 5.10.* (unaffected, semver); ≥ 5.15.212; ≤ 5.15.* (unaffected, semver); ≥ 6.1.178; ≤ 6.1.* (unaffected, semver); ≥ 6.6.145; ≤ 6.6.* (unaffected, semver); ≥ 6.12.96; ≤ 6.12.* (unaffected, semver); ≥ 6.18.39; ≤ 6.18.* (unaffected, semver); ≥ 7.1.4; ≤ 7.1.* (unaffected, semver); ≥ 7.2; ≤ * (unaffected, original_commit_for_fix). Source: CNA: Linux
- Siemens / SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AB0): ≥ V3.1.6; < * (affected, custom). Source: ADP: siemens-SADP
- Siemens / SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AB0): ≥ V3.1.7; < * (affected, custom). Source: ADP: siemens-SADP
- Siemens / SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AC0): ≥ V3.1.6; < * (affected, custom). Source: ADP: siemens-SADP
- Siemens / SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AC0): ≥ V3.1.7; < * (affected, custom). Source: ADP: siemens-SADP
- Siemens / SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (6ES7518-4FX00-1AB0): ≥ V3.1.6; < * (affected, custom). Source: ADP: siemens-SADP
- Siemens / SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (6ES7518-4FX00-1AB0): ≥ V3.1.7; < * (affected, custom). Source: ADP: siemens-SADP
- Siemens / SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (6ES7518-4FX00-1AC0): ≥ V3.1.6; < * (affected, custom). Source: ADP: siemens-SADP
- Siemens / SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (6ES7518-4FX00-1AC0): ≥ V3.1.7; < * (affected, custom). Source: ADP: siemens-SADP
- Siemens / SIPLUS S7-1500 CPU 1518-4 PN/DP MFP (6AG1518-4AX00-4AC0): ≥ V3.1.6; < * (affected, custom). Source: ADP: siemens-SADP
- Siemens / SIPLUS S7-1500 CPU 1518-4 PN/DP MFP (6AG1518-4AX00-4AC0): ≥ V3.1.7; < * (affected, custom). Source: ADP: siemens-SADP

## Severity and prioritization

- CVSS 3.1: 7.1 (high); CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H; source: CNA: Linux

- CISA KEV: No listing in collected sources

- EPSS: 0.13% as of 2026-11-09; percentile 2.77%

- SSVC: exploitation none; automatable no; technical impact partial; source ADP: CISA-ADP

- Weaknesses: CWE-125

## Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

## References

- https://git.kernel.org/stable/c/43dd2332b8a27b3ac5108791680cade654ab0f96 (CNA: Linux)

- https://git.kernel.org/stable/c/5777c8f1c3610786d8482b8f620f40fccaf1542b (CNA: Linux)

- https://git.kernel.org/stable/c/0ddca0f90fa3395111d078ae4399615cf3ea94aa (CNA: Linux)

- https://git.kernel.org/stable/c/d2367d99f2455f373996d9ddbe833dbe9f942213 (CNA: Linux)

- https://git.kernel.org/stable/c/da32e78bbb187ed7b137e0007034185570a3a172 (CNA: Linux)

- https://git.kernel.org/stable/c/13a5f532e3a4fc75c33060a026def1572c208643 (CNA: Linux)

- https://git.kernel.org/stable/c/7b217960e88b5d2d1e8cdcbcaf3bdf6fe199a0c8 (CNA: Linux)

- https://git.kernel.org/stable/c/084d23f818321390509e9738a0b08bbf46df6425 (CNA: Linux)

- https://cert-portal.siemens.com/productcert/html/ssa-019113.html (ADP: siemens-SADP)

- https://cert-portal.siemens.com/productcert/html/ssa-457936.html (ADP: siemens-SADP)

## Provenance

- CNA: Linux: https://www.cve.org/CVERecord?id=CVE-2026-64412; retrieved 2026-11-10; source updated 2026-11-10

- FIRST EPSS: https://api.first.org/data/v1/epss?cve=CVE-2026-64412; retrieved 2026-11-10; source updated Not reported

Revision: 5c66290415862b8505c0b0f51fe5382a9fea470873ddb3054ef34b6f5c05f2c6

Canonical: https://y2.dev/cve/CVE-2026-64412

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