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NVD / CVE Program· CNA Linux

CVE-2023-53807: clk: clocking-wizard: Fix Oops in clk_wzrd_register_divider()

Noroxi assessment

Priority: Monitor (action score 0/100)

  • 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: 0.18% (FIRST EPSS).
  • Fixed version: Linux Linux 25dbdfb7b71ef8601d00c6d9a2b1a96de28b30c5, 2f276dd9c0f835242836d9f6823035158ce2585c, 9c632a6396505a019ea6d12b5ab45e659a542a93.

Low priority for now. Upgrade to Linux Linux 25dbdfb7b71ef8601d00c6d9a2b1a96de28b30c5, 2f276dd9c0f835242836d9f6823035158ce2585c, 9c632a6396505a019ea6d12b5ab45e659a542a93 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: clk: clocking-wizard: Fix Oops in clk_wzrd_register_divider() Smatch detected this potential error pointer dereference clk_wzrd_register_divider(). If devm_clk_hw_register() fails then it sets "hw" to an error pointer and then dereferences it on the next line. Return the error directly instead.

—No exploit Fix available
Published
Dec 8, 2025
Updated
Jun 17, 2026
EPSS
0.1% · 8th percentile
CWE
—

Report tools

JSON

Action score

0

Monitor

Low priority for now.

CVSS
0 / 40 · —
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.1%

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  • 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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When you'll hear from us

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  • when exploit code appears or is weaponized
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  • 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.

—

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

    • 5.13affected
    • 5a853722eb32188647a541802d51d0db423b9baf and later · before 2f276dd9c0f835242836d9f6823035158ce2585caffected · git
    • 5a853722eb32188647a541802d51d0db423b9baf and later · before b35cb0c05b8dafe23ae5e8b605a91b88bcf4aba7affected · git
    • 5a853722eb32188647a541802d51d0db423b9baf and later · before 25dbdfb7b71ef8601d00c6d9a2b1a96de28b30c5affected · git
    • 5a853722eb32188647a541802d51d0db423b9baf and later · before f078a65ebf930f4305e3c415a8338d22391642c9affected · git
    • 5a853722eb32188647a541802d51d0db423b9baf and later · before 9c632a6396505a019ea6d12b5ab45e659a542a93affected · git
    • before 5.13not affected · semver
    • 5.15.121 and later · up to and including 5.15.*not affected · semver
    • 6.1.39 and later · up to and including 6.1.*not affected · semver
    • 6.3.13 and later · up to and including 6.3.*not affected · semver

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 6.1.52-16.1.52-1
Debian:13linuxbefore 6.4.4-16.4.4-1

Same product

linux: all records

Other highest-scoring records for the same primary product.

  • CVE-2026-74705udp: fix potential use-after-free in tunnel segmentation
    40Plan
  • CVE-2026-74612veth: fix skb length accounting after XDP frag adjustment
    40Plan
  • CVE-2026-74475vxlan: use neigh_ha_snapshot() in route_shortcircuit()
    40Plan

Published before and after this one in the same product

  • ← EarlierCVE-2023-53804Dec 8, 2025 · nilfs2: fix use-after-free bug of nilfs_root in nilfs_evict_inode()
    31Monitor
  • ← EarlierCVE-2023-53806Dec 8, 2025 · drm/amd/display: populate subvp cmd info only for the top pipe
    31Monitor
  • Later →CVE-2023-53808Dec 8, 2025 · wifi: mwifiex: fix memory leak in mwifiex_histogram_read()
    0Monitor

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 Linux25dbdfb7b71ef8601d00c6d9a2b1a96de28b30c5Vendor (CNA)
Linux Linux2f276dd9c0f835242836d9f6823035158ce2585cVendor (CNA)
Linux Linux9c632a6396505a019ea6d12b5ab45e659a542a93Vendor (CNA)
Linux Linuxb35cb0c05b8dafe23ae5e8b605a91b88bcf4aba7Vendor (CNA)
Linux Linuxf078a65ebf930f4305e3c415a8338d22391642c9Vendor (CNA)
debian:linux6.1.52-1 · Debian:12Package 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).

Technical details

No CVSS vector for this record, so attack conditions can't be derived.

Weakness class (CWE)

—

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 (4 more)

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

All records