CVE-2025-39973

mediumpriority · track · 0EPSS 0.002 · 4 %ileDEEURU
grimoire priorityP3 · Track
Exploitable?
—
no known exploitation
Likely / severe?
0.15% (4th) EPSS
CVSS 4.6 · medium
Is it mine?
55 products
Check your exposure
Who says so?
5 sources
cnnvd · enisa_euvd · fstec_bdu · cert_bund

EPSS · scored 2026-10-22

In the Linux kernel, the following vulnerability has been resolved: i40e: add validation for ring_len param The `ring_len` parameter provided by the virtual function (VF) is assigned directly to the hardware memory context (HMC) without any validation. To address this, introduce an upper boundary check for both Tx and Rx queue lengths. The maximum number of descriptors supported by the hardware is 8k-32. Additionally, enforce alignment constraints: Tx rings must be a multiple of 8, and Rx rings must be a multiple of 32.

01

remediations

Vendor fix, mitigation, or workaround guidance, as published by each source.

A vendor fix is available.

  • Fixedkernel-livepatch-6_4_0-150700_7_19-rt-0:5-150700.2.1.x86_64 as component of SUSE Linux Enterprise Live Patching 15 SP7suse_csaf

    To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".

  • Fixedkernel-livepatch-6_4_0-150700_7_3-rt-0:13-150700.2.1.x86_64 as component of SUSE Linux Enterprise Live Patching 15 SP7suse_csaf

    To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".

  • Fixedkernel-obs-build-0:6.12.0-160000.7.1.aarch64 as component of SUSE Linux Micro Extras 6.2suse_csaf

    To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".

  • Fixedkernel-obs-build-0:6.12.0-160000.7.1.ppc64le as component of SUSE Linux Micro Extras 6.2suse_csaf

    To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".

  • Fixedkernel-obs-build-0:6.12.0-160000.7.1.s390x as component of SUSE Linux Micro Extras 6.2suse_csaf

    To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".

  • Fixedkernel-obs-build-0:6.12.0-160000.7.1.x86_64 as component of SUSE Linux Micro Extras 6.2suse_csaf

    To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".

  • Fixedkernel-syms-0:6.12.0-160000.7.1.aarch64 as component of SUSE Linux Micro Extras 6.2suse_csaf

    To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".

  • Fixedkernel-syms-0:6.12.0-160000.7.1.ppc64le as component of SUSE Linux Micro Extras 6.2suse_csaf

    To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".

  • Fixedkernel-syms-0:6.12.0-160000.7.1.s390x as component of SUSE Linux Micro Extras 6.2suse_csaf

    To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".

  • Fixedkernel-syms-0:6.12.0-160000.7.1.x86_64 as component of SUSE Linux Micro Extras 6.2suse_csaf

    To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".

02

cvss

Technical severity, 0–10. One row per scoring source.

8.8
010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 4.6–8.8

v3.14.6mediumAV:A/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:Lsecondary · FSTEC (BDU) RU
v3.18.8highCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:Hsecondary · ENISA EU
v3.18.8highCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:Hsecondaryexploitability 2 · impact 6
v3.18.1highCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)
v3.17highCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:Hsecondary · SUSE Product Security
03

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-131US
04

affected products (55)

Products and version ranges known to be affected.

showing 20 of 55
05

advisories (5)

Vendor and ecosystem advisories describing this.

  • SUSE-SU-2026:1185-1Security update for the Linux Kernel RT (Live Patch 5 for SUSE Linux Enterprise 15 SP7)2026-04-03csaf · suse_csafDE

    Security update for the Linux Kernel RT (Live Patch 5 for SUSE Linux Enterprise 15 SP7)

  • SUSE-SU-2026:1188-1Security update for the Linux Kernel RT (Live Patch 1 for SUSE Linux Enterprise 15 SP7)2026-04-05csaf · suse_csafDE

    Security update for the Linux Kernel RT (Live Patch 1 for SUSE Linux Enterprise 15 SP7)

  • SUSE-SU-2026:20561-1Security update for the Linux Kernel2025-11-26csaf · suse_csafDE

    Security update for the Linux Kernel

  • WID-SEC-W-2025-2298Linux Kernel: Mehrere SchwachstellenDeutsch2025-10-14csaf · cert_bundDE

    Ein Angreifer kann mehrere Schwachstellen im Linux-Kernel ausnutzen, um einen Denial of Service Angriff durchzuführen, Daten zu manipulieren und andere, nicht näher spezifizierte Angriffe durchzuführen.

  • WID-SEC-W-2026-0349Dell Avamar und NetWorker: Mehrere SchwachstellenDeutsch2026-02-09csaf · cert_bundDE

    Ein Angreifer kann mehrere Schwachstellen in Dell Avamar und Dell NetWorker ausnutzen, um Angriffe zu starten, die die Integrität, Vertraulichkeit und Verfügbarkeit von Systemen beeinträchtigen.

06

also known as (4)

Other names and identifiers for this entity.

07

sources

Which sources assert this record, and when.

cnnvdenisa_euvdfstec_bducert_bundsuse_csafNVDCVE.orgMITRE
published 2025-10-15modified 2026-10-19
08

references (25)

External citations — patches, advisories, analysis.

scry

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