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NVD / CVE Program· CNA Linux

CVE-2025-38456: ipmi:msghandler: Fix potential memory corruption in ipmi_create_user()

HighCVSS 7.8 · v3.1—No exploit Fix available

Noroxi assessment

Priority: Monitor (action score 31/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 0.19% (FIRST EPSS).
  • Someone with local access to the system can trigger it. A low-privileged account is enough. No user action is required. No special conditions are required; it is repeatable.
  • Fixed version: Linux Linux 7c1a6ddb99858e7d68961f74ae27caeeeca67b6a, 9e0d33e75c1604c3fad5586ad4dfa3b2695a3950, cbc1670297f675854e982d23c8583900ff0cc67a; azl3 kernel 6.6.96.2-2 on Azure Linux 3.0 6.6.104.2-1.

Low priority for now. Upgrade to Linux Linux 7c1a6ddb99858e7d68961f74ae27caeeeca67b6a, 9e0d33e75c1604c3fad5586ad4dfa3b2695a3950, cbc1670297f675854e982d23c8583900ff0cc67a; azl3 kernel 6.6.96.2-2 on Azure Linux 3.0 6.6.104.2-1 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

In the Linux kernel, the following vulnerability has been resolved: ipmi:msghandler: Fix potential memory corruption in ipmi_create_user() The "intf" list iterator is an invalid pointer if the correct "intf->intf_num" is not found. Calling atomic_dec(&intf->nr_users) on and invalid pointer will lead to memory corruption. We don't really need to call atomic_dec() if we haven't called atomic_add_return() so update the if (intf->in_shutdown) path as well.

Published
Jul 25, 2025
Updated
Aug 5, 2026
EPSS
0.1% · 8th percentile

Report tools

JSON

Action score

31

Monitor

Low priority for now.

CVSS
31 / 40 · 7.8 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.1%

CNA vs NVD score

NVD
7.8
CNA · Linux
7.8
agree

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • A fix has been released

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Follow CVE-2025-38456

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  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
linuxlinux kernel
debiandebian linux

Versions reported by the vendor

Affected version ranges reported by the assigning authority (Linux). Independent of NVD's CPE analysis and usually ahead of it.

  • Linux Linux

    • 5.19affected
    • 8e76741c3d8b20dfa2d6c30fa10ff927cfd93d82 and later · before cbc1670297f675854e982d23c8583900ff0cc67aaffected · git
    • 8e76741c3d8b20dfa2d6c30fa10ff927cfd93d82 and later · before e2d5c005dfc96fe857676d1d8ac46b29275cb89baffected · git
    • 8e76741c3d8b20dfa2d6c30fa10ff927cfd93d82 and later · before 9e0d33e75c1604c3fad5586ad4dfa3b2695a3950affected · git
    • 8e76741c3d8b20dfa2d6c30fa10ff927cfd93d82 and later · before 7c1a6ddb99858e7d68961f74ae27caeeeca67b6aaffected · git
    • 8e76741c3d8b20dfa2d6c30fa10ff927cfd93d82 and later · before fa332f5dc6fc662ad7d3200048772c96b861cf6baffected · git
    • before 5.19not affected · semver
    • 6.1.146 and later · up to and including 6.1.*not affected · semver
    • 6.6.99 and later · up to and including 6.6.*not affected · semver
    • 6.12.39 and later · up to and including 6.12.*not affected · semver
Affected versions · NVD (5)

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • debian debian linux11.0
  • linux linux kernel5.19 and later · before 6.1.146
  • linux linux kernel6.2 and later · before 6.6.99
  • linux linux kernel6.7 and later · before 6.12.39
  • linux linux kernel6.13 and later · before 6.15.7

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 6.1.147-16.1.147-1
Debian:13linuxbefore 6.12.41-16.12.41-1
Debian:14linuxbefore 6.16.3-16.16.3-1
SUSE:Linux Enterprise Live Patching 15 SP7kernel-livepatch-SLE15-SP7_Update_5before 1-150700.15.3.11-150700.15.3.1
SUSE:Linux Enterprise Live Patching 15 SP7kernel-livepatch-SLE15-SP7-RT_Update_5before 1-150700.1.3.11-150700.1.3.1
SUSE:Linux Enterprise Module for Basesystem 15 SP7kernel-64kbbefore 6.4.0-150700.53.19.16.4.0-150700.53.19.1
SUSE:Linux Enterprise Module for Basesystem 15 SP7kernel-defaultbefore 6.4.0-150700.53.19.16.4.0-150700.53.19.1
SUSE:Linux Enterprise Module for Basesystem 15 SP7kernel-default-basebefore 6.4.0-150700.53.19.1.150700.17.13.16.4.0-150700.53.19.1.150700.17.13.1
SUSE:Linux Enterprise Module for Basesystem 15 SP7kernel-sourcebefore 6.4.0-150700.53.19.16.4.0-150700.53.19.1
SUSE:Linux Enterprise Module for Basesystem 15 SP7kernel-zfcpdumpbefore 6.4.0-150700.53.19.16.4.0-150700.53.19.1
SUSE:Linux Enterprise Module for Development Tools 15 SP7kernel-docsbefore 6.4.0-150700.53.19.16.4.0-150700.53.19.1
SUSE:Linux Enterprise Module for Development Tools 15 SP7kernel-obs-buildbefore 6.4.0-150700.53.19.16.4.0-150700.53.19.1
SUSE:Linux Enterprise Module for Development Tools 15 SP7kernel-symsbefore 6.4.0-150700.53.19.16.4.0-150700.53.19.1
SUSE:Real Time Module 15 SP7kernel-rtbefore 6.4.0-150700.7.19.16.4.0-150700.7.19.1
SUSE:Real Time Module 15 SP7kernel-source-rtbefore 6.4.0-150700.7.19.16.4.0-150700.7.19.1
SUSE:Real Time Module 15 SP7kernel-syms-rtbefore 6.4.0-150700.7.19.16.4.0-150700.7.19.1

Same product

linux: all records

Other highest-scoring records for the same primary product.

  • CVE-2026-31431crypto: algif_aead - Revert to operating out-of-placeKEV
    90Now
  • CVE-2022-0847A flaw was found in the way the "flags" member of the new pipe buffer structure was lacking proper initialization in copy_page_to_iter_pipe…KEV
    89Now
  • CVE-2021-22555Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACEKEV
    85Now

Published before and after this one in the same product

  • ← EarlierCVE-2025-38453Jul 25, 2025 · io_uring/msg_ring: ensure io_kiocb freeing is deferred for RCU
    22Monitor
  • ← EarlierCVE-2025-38454Jul 25, 2025 · ALSA: ad1816a: Fix potential NULL pointer deref in snd_card_ad1816a_pnp()
    22Monitor
  • Later →CVE-2025-38459Jul 25, 2025 · atm: clip: Fix infinite recursive call of clip_push().
    31Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
Linux Linux7c1a6ddb99858e7d68961f74ae27caeeeca67b6aVendor (CNA)
Linux Linux9e0d33e75c1604c3fad5586ad4dfa3b2695a3950Vendor (CNA)
Linux Linuxcbc1670297f675854e982d23c8583900ff0cc67aVendor (CNA)
Linux Linuxe2d5c005dfc96fe857676d1d8ac46b29275cb89bVendor (CNA)
Linux Linuxfa332f5dc6fc662ad7d3200048772c96b861cf6bVendor (CNA)
azl3 kernel 6.6.96.2-2 on Azure Linux 3.06.6.104.2-1 · CBL-Mariner ReleasesMicrosoft (MSRC)
debian:linux6.1.147-1 · Debian:12Package registry (OSV)
suse:kernel-64kb6.4.0-150700.53.19.1 · SUSE:Linux Enterprise Module for Basesystem 15 SP7Package registry (OSV)
suse:kernel-default6.4.0-150700.53.19.1 · SUSE:Linux Enterprise Module for Basesystem 15 SP7Package registry (OSV)
suse:kernel-default-base6.4.0-150700.53.19.1.150700.17.13.1 · SUSE:Linux Enterprise Module for Basesystem 15 SP7Package registry (OSV)
suse:kernel-docs6.4.0-150700.53.19.1 · SUSE:Linux Enterprise Module for Development Tools 15 SP7Package registry (OSV)
suse:kernel-livepatch-SLE15-SP7_Update_51-150700.15.3.1 · SUSE:Linux Enterprise Live Patching 15 SP7Package registry (OSV)
suse:kernel-livepatch-SLE15-SP7-RT_Update_51-150700.1.3.1 · SUSE:Linux Enterprise Live Patching 15 SP7Package registry (OSV)
suse:kernel-obs-build6.4.0-150700.53.19.1 · SUSE:Linux Enterprise Module for Development Tools 15 SP7Package registry (OSV)
suse:kernel-rt6.4.0-150700.7.19.1 · SUSE:Real Time Module 15 SP7Package registry (OSV)
suse:kernel-source6.4.0-150700.53.19.1 · SUSE:Linux Enterprise Module for Basesystem 15 SP7Package registry (OSV)
suse:kernel-source-rt6.4.0-150700.7.19.1 · SUSE:Real Time Module 15 SP7Package registry (OSV)
suse:kernel-syms6.4.0-150700.53.19.1 · SUSE:Linux Enterprise Module for Development Tools 15 SP7Package registry (OSV)
suse:kernel-zfcpdump6.4.0-150700.53.19.1 · SUSE:Linux Enterprise Module for Basesystem 15 SP7Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

Not on record for this CVE: EPSS history · patch commit or PR link · researcher credit · variant or chain candidate · public bounty program.

Technical details

Attack conditions

  • Someone with local access to the system can trigger it.
  • A low-privileged account is enough.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
high · data can be read
Integrity
high · data or configuration can be modified
Availability
high · the service can be disrupted
Attack vector
Local
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality impact
High
Integrity impact
High
Availability impact
High

Weakness class (CWE)

CWE-787 · Out-of-bounds Write

CVSS vector

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

nvd-primary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

MITRE has no CAPEC/ATT&CK mapping for this CWE.

References

Show all references (5 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records