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CVE-2024-47686· NVD / CVE Program· CNA Linux

ep93xx: clock: Fix off by one in ep93xx_div_recalc_rate()

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: 0.24% (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 27f493e141823db052586010c1532b70b164507c, 66e78ade976dbd9bea09166aa8d66afc0963cde4, 7a5bd2fb92388c51d267f6ce57c40f1cca8af1e0.

Low priority for now. Upgrade to Linux Linux 27f493e141823db052586010c1532b70b164507c, 66e78ade976dbd9bea09166aa8d66afc0963cde4, 7a5bd2fb92388c51d267f6ce57c40f1cca8af1e0 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: ep93xx: clock: Fix off by one in ep93xx_div_recalc_rate() The psc->div[] array has psc->num_div elements. These values come from when we call clk_hw_register_div(). It's adc_divisors and ARRAY_SIZE(adc_divisors)) and so on. So this condition needs to be >= instead of > to prevent an out of bounds read.

HighCVSS 7.1 · v3.1—No exploit Fix available
Published
Oct 21, 2024
Updated
Jun 17, 2026
EPSS
0.2% · 14th 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.

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-2024-47686

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

Affected versions

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

  • linux linux kernel5.16 and later · before 6.1.113
  • linux linux kernel6.2 and later · before 6.6.54
  • linux linux kernel6.7 and later · before 6.10.13
  • linux linux kernel6.11 and later · before 6.11.2

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

    • 5.16affected
    • 9645ccc7bd7a16cd73c3be9dee70cd702b03be37 and later · before 7a5bd2fb92388c51d267f6ce57c40f1cca8af1e0affected · git
    • 9645ccc7bd7a16cd73c3be9dee70cd702b03be37 and later · before 66e78ade976dbd9bea09166aa8d66afc0963cde4affected · git
    • 9645ccc7bd7a16cd73c3be9dee70cd702b03be37 and later · before 27f493e141823db052586010c1532b70b164507caffected · git
    • 9645ccc7bd7a16cd73c3be9dee70cd702b03be37 and later · before ae59eaf36a1ad396e9f657ec9b8b52da6206ed5faffected · git
    • 9645ccc7bd7a16cd73c3be9dee70cd702b03be37 and later · before c7f06284a6427475e3df742215535ec3f6cd9662affected · git
    • before 5.16not affected · semver
    • 6.1.113 and later · up to and including 6.1.*not affected · semver
    • 6.6.54 and later · up to and including 6.6.*not affected · semver
    • 6.10.13 and later · up to and including 6.10.*not affected · semver

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 6.1.115-16.1.115-1
Debian:13linuxbefore 6.11.2-16.11.2-1
openSUSE:Tumbleweedkernel-sourcebefore 6.11.8-1.16.11.8-1.1

Same product

linux: all records

Other highest-scoring records for the same primary product.

  • 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
  • CVE-2016-5195Race condition in mm/gup.c in the Linux kernel 2.x through 4.x before 4.8.3 allows local users to gain privileges by leveraging incorrect haKEV
    83Now

Published before and after this one in the same product

  • ← EarlierCVE-2024-47682Oct 21, 2024 · scsi: sd: Fix off-by-one error in sd_read_block_characteristics()
    31Monitor
  • ← EarlierCVE-2024-47683Oct 21, 2024 · drm/amd/display: Skip Recompute DSC Params if no Stream on Link
    22Monitor
  • Later →CVE-2024-47687Oct 21, 2024 · vdpa/mlx5: Fix invalid mr resource destroy
    22Monitor

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 Linux27f493e141823db052586010c1532b70b164507cVendor (CNA)
Linux Linux66e78ade976dbd9bea09166aa8d66afc0963cde4Vendor (CNA)
Linux Linux7a5bd2fb92388c51d267f6ce57c40f1cca8af1e0Vendor (CNA)
Linux Linuxae59eaf36a1ad396e9f657ec9b8b52da6206ed5fVendor (CNA)
Linux Linuxc7f06284a6427475e3df742215535ec3f6cd9662Vendor (CNA)
debian:linux6.1.115-1 · Debian:12Package registry (OSV)
opensuse:kernel-source6.11.8-1.1 · openSUSE:TumbleweedPackage 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.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

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.

  • CVE-2023-38429462 days apartAn issue was discovered in the Linux kernel before 6.3.4.
    39Monitor
  • CVE-2024-476820 days apartscsi: sd: Fix off-by-one error in sd_read_block_characteristics()
    31Monitor
  • CVE-2024-498800 days apartext4: fix off by one issue in alloc_flex_gd()
    31Monitor
  • CVE-2024-4685224 days apartdma-buf: heaps: Fix off-by-one in CMA heap fault handler
    31Monitor
  • CVE-2024-4385265 days aparthwmon: (ltc2991) re-order conditions to fix off by one bug
    31Monitor
  • CVE-2022-48732123 days apartdrm/nouveau: fix off by one in BIOS boundary checking
    31Monitor

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).

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-193 · Off-by-one Error

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 (5 more)

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

All records