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NVD / CVE Program· CNA Linux

CVE-2024-26664: hwmon: (coretemp) Fix out-of-bounds memory access

Noroxi assessment

Priority: Monitor (action score 28/100)

  • 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: 0.25% (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 1eb74c00c9c3b13cb65e508c5d5a2f11afb96b8b, 3a7753bda55985dc26fae17795cb10d825453ad1, 4.19.307.
  • Mentioned 2 times in Turkish national cyber security advisories (siberguvenlik.gov.tr).

Low priority for now. Upgrade to Linux Linux 1eb74c00c9c3b13cb65e508c5d5a2f11afb96b8b, 3a7753bda55985dc26fae17795cb10d825453ad1, 4.19.307 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: hwmon: (coretemp) Fix out-of-bounds memory access Fix a bug that pdata->cpu_map[] is set before out-of-bounds check. The problem might be triggered on systems with more than 128 cores per package.

HighCVSS 7.1 · v3.1—No exploit Fix available
Published
Apr 2, 2024
Updated
Aug 5, 2026
EPSS
0.2% · 16th percentile

Report tools

JSON

Action score

28

Monitor

Low priority for now.

CVSS
28 / 40 · 7.1 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.2%

CISA SSVC decision

Exploitation
none
Automatable
no
Technical impact
partial

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
7.1
CNA · Linux
7.8
0.7 point gap

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

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

If any of these changes, we'll tell you in the daily email digest.

Follow CVE-2024-26664

When you'll hear from us

  • when it enters CISA KEV
  • 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

Affected versions

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

  • debian debian linux10.0
  • linux linux kernel5.4.221 and later · before 5.4.269
  • linux linux kernel5.10.152 and later · before 5.10.210
  • linux linux kernel6.1 and later · before 6.1.78
  • linux linux kernel4.19.264 and later · before 4.19.307
  • linux linux kernel6.7 and later · before 6.7.5
  • linux linux kernel6.2 and later · before 6.6.17
  • linux linux kernel6.8

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

    • d1de8e1ae924d9dc31548676e4a665b52ebee27e, 6.1affected
    • 4f9dcadc55c21b39b072bb0882362c7edc4340bc and later · before 93f0f4e846fcb682c3ec436e3b2e30e5a3a8ee6aaffected · git
    • c00cdfc9bd767ee743ad3a4054de17aeb0afcbca and later · before 1eb74c00c9c3b13cb65e508c5d5a2f11afb96b8baffected · git
    • d9f0159da05df869071164edf0c6d7302efc5eca and later · before f0da068c75c20ffc5ba28243ff577531dc2af1fdaffected · git
    • 30cf0dee372baf9b515f2d9c7218f905fddf3cdb and later · before a16afec8e83c56b14a4a73d2e3fb8eec3a8a057eaffected · git
    • 7108b80a542b9d65e44b36d64a700a83658c0b73 and later · before 9bce69419271eb8b2b3ab467387cb59c99d80debaffected · git
    • 7108b80a542b9d65e44b36d64a700a83658c0b73 and later · before 853a6503c586a71abf27e60a7f8c4fb28092976daffected · git
    • 7108b80a542b9d65e44b36d64a700a83658c0b73 and later · before 3a7753bda55985dc26fae17795cb10d825453ad1affected · git
    • 7108b80a542b9d65e44b36d64a700a83658c0b73 and later · before 4e440abc894585a34c2904a32cd54af1742311b3affected · git
    • 4.19.264 and later · before 4.19.307affected · semver

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 6.1.82-16.1.82-1
Debian:13linuxbefore 6.7.7-16.7.7-1
Red Hat:enterprise_linux:9::appstreambpftool-debuginfobefore 0:7.3.0-427.22.1.el9_40:7.3.0-427.22.1.el9_4
Red Hat:enterprise_linux:9::appstreamkernel-64k-debug-debuginfobefore 0:5.14.0-427.22.1.el9_40:5.14.0-427.22.1.el9_4
Red Hat:enterprise_linux:9::appstreamkernel-64k-debug-develbefore 0:5.14.0-427.22.1.el9_40:5.14.0-427.22.1.el9_4
Red Hat:enterprise_linux:9::appstreamkernel-64k-debug-devel-matchedbefore 0:5.14.0-427.22.1.el9_40:5.14.0-427.22.1.el9_4
Red Hat:enterprise_linux:9::appstreamkernel-64k-debuginfobefore 0:5.14.0-427.22.1.el9_40:5.14.0-427.22.1.el9_4
Red Hat:enterprise_linux:9::appstreamkernel-64k-develbefore 0:5.14.0-427.22.1.el9_40:5.14.0-427.22.1.el9_4
Red Hat:enterprise_linux:9::appstreamkernel-64k-devel-matchedbefore 0:5.14.0-427.22.1.el9_40:5.14.0-427.22.1.el9_4
Red Hat:enterprise_linux:9::appstreamkernel-debug-debuginfobefore 0:5.14.0-427.22.1.el9_40:5.14.0-427.22.1.el9_4
Red Hat:enterprise_linux:9::appstreamkernel-debug-develbefore 0:5.14.0-427.22.1.el9_40:5.14.0-427.22.1.el9_4
Red Hat:enterprise_linux:9::appstreamkernel-debug-devel-matchedbefore 0:5.14.0-427.22.1.el9_40:5.14.0-427.22.1.el9_4
Red Hat:enterprise_linux:9::appstreamkernel-debuginfobefore 0:5.14.0-427.22.1.el9_40:5.14.0-427.22.1.el9_4
Red Hat:enterprise_linux:9::appstreamkernel-debuginfo-common-aarch64before 0:5.14.0-427.22.1.el9_40:5.14.0-427.22.1.el9_4
Red Hat:enterprise_linux:9::appstreamkernel-debuginfo-common-ppc64lebefore 0:5.14.0-427.22.1.el9_40:5.14.0-427.22.1.el9_4
Red Hat:enterprise_linux:9::appstreamkernel-debuginfo-common-s390xbefore 0:5.14.0-427.22.1.el9_40:5.14.0-427.22.1.el9_4
Red Hat:enterprise_linux:9::appstreamkernel-debuginfo-common-x86_64before 0:5.14.0-427.22.1.el9_40:5.14.0-427.22.1.el9_4
Red Hat:enterprise_linux:9::appstreamkernel-develbefore 0:5.14.0-427.22.1.el9_40:5.14.0-427.22.1.el9_4
Red Hat:enterprise_linux:9::appstreamkernel-devel-matchedbefore 0:5.14.0-427.22.1.el9_40:5.14.0-427.22.1.el9_4
Red Hat:enterprise_linux:9::appstreamkernel-docbefore 0:5.14.0-427.22.1.el9_40:5.14.0-427.22.1.el9_4
Red Hat:enterprise_linux:9::appstreamkernel-headersbefore 0:5.14.0-427.22.1.el9_40:5.14.0-427.22.1.el9_4
Red Hat:enterprise_linux:9::appstreamkernel-rt-debug-debuginfobefore 0:5.14.0-427.22.1.el9_40:5.14.0-427.22.1.el9_4
Red Hat:enterprise_linux:9::appstreamkernel-rt-debuginfobefore 0:5.14.0-427.22.1.el9_40:5.14.0-427.22.1.el9_4
Red Hat:enterprise_linux:9::appstreamkernel-tools-debuginfobefore 0:5.14.0-427.22.1.el9_40:5.14.0-427.22.1.el9_4

+58

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-2024-26660Apr 2, 2024 · drm/amd/display: Implement bounds check for stream encoder creation in DCN301
    22Monitor
  • ← EarlierCVE-2024-26663Apr 2, 2024 · tipc: Check the bearer type before calling tipc_udp_nl_bearer_add()
    22Monitor
  • Later →CVE-2024-26665Apr 2, 2024 · tunnels: fix out of bounds access when building IPv6 PMTU error
    28Monitor

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 Linux1eb74c00c9c3b13cb65e508c5d5a2f11afb96b8bVendor (CNA)
Linux Linux3a7753bda55985dc26fae17795cb10d825453ad1Vendor (CNA)
Linux Linux4.19.307Vendor (CNA)
Linux Linux4e440abc894585a34c2904a32cd54af1742311b3Vendor (CNA)
Linux Linux5.10.210Vendor (CNA)
Linux Linux5.15.149Vendor (CNA)
Linux Linux5.4.269Vendor (CNA)
Linux Linux6.1Vendor (CNA)
Linux Linux853a6503c586a71abf27e60a7f8c4fb28092976dVendor (CNA)
Linux Linux93f0f4e846fcb682c3ec436e3b2e30e5a3a8ee6aVendor (CNA)
Linux Linux9bce69419271eb8b2b3ab467387cb59c99d80debVendor (CNA)
Linux Linuxa16afec8e83c56b14a4a73d2e3fb8eec3a8a057eVendor (CNA)
Linux Linuxf0da068c75c20ffc5ba28243ff577531dc2af1fdVendor (CNA)
debian:linux6.1.82-1 · Debian:12Package registry (OSV)
red hat:bpftool-debuginfo0:7.3.0-427.22.1.el9_4 · Red Hat:enterprise_linux:9::appstreamPackage registry (OSV)
red hat:kernel-64k-debug-debuginfo0:5.14.0-427.22.1.el9_4 · Red Hat:enterprise_linux:9::appstreamPackage registry (OSV)
red hat:kernel-64k-debug-devel0:5.14.0-427.22.1.el9_4 · Red Hat:enterprise_linux:9::appstreamPackage registry (OSV)
red hat:kernel-64k-debug-devel-matched0:5.14.0-427.22.1.el9_4 · Red Hat:enterprise_linux:9::appstreamPackage registry (OSV)
red hat:kernel-64k-debuginfo0:5.14.0-427.22.1.el9_4 · Red Hat:enterprise_linux:9::appstreamPackage registry (OSV)
red hat:kernel-64k-devel0:5.14.0-427.22.1.el9_4 · Red Hat:enterprise_linux:9::appstreamPackage registry (OSV)
red hat:kernel-64k-devel-matched0:5.14.0-427.22.1.el9_4 · Red Hat:enterprise_linux:9::appstreamPackage registry (OSV)
red hat:kernel-debug-debuginfo0:5.14.0-427.22.1.el9_4 · Red Hat:enterprise_linux:9::appstreamPackage registry (OSV)
red hat:kernel-debug-devel0:5.14.0-427.22.1.el9_4 · Red Hat:enterprise_linux:9::appstreamPackage registry (OSV)
red hat:kernel-debug-devel-matched0:5.14.0-427.22.1.el9_4 · Red Hat:enterprise_linux:9::appstreamPackage registry (OSV)
red hat:kernel-debuginfo0:5.14.0-427.22.1.el9_4 · Red Hat:enterprise_linux:9::appstreamPackage registry (OSV)
red hat:kernel-debuginfo-common-aarch640:5.14.0-427.22.1.el9_4 · Red Hat:enterprise_linux:9::appstreamPackage 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.

No history yet (it accumulates with the daily EPSS job).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

National notice (Türkiye Cybersecurity Directorate / USOM)

Official security notices citing this record; remediation advice is on the agency's page.

All national notices →

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
none
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
None
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:N/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.

Change log

  1. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Show all references (9 more)

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

All records