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NVD / CVE Program· CNA Linux

CVE-2023-53786: dm flakey: fix a crash with invalid table line

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: 0.23% (FIRST EPSS).
  • Fixed version: Linux Linux 12849ed107c0b2869fb775c81208050899006f07, 337b7af273562b73c46ef77a724604ad139ca762, 8258d84a7917aeece773716518deadb7ad776cb7.

Low priority for now. Upgrade to Linux Linux 12849ed107c0b2869fb775c81208050899006f07, 337b7af273562b73c46ef77a724604ad139ca762, 8258d84a7917aeece773716518deadb7ad776cb7 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: dm flakey: fix a crash with invalid table line This command will crash with NULL pointer dereference: dmsetup create flakey --table \ "0 `blockdev --getsize /dev/ram0` flakey /dev/ram0 0 0 1 2 corrupt_bio_byte 512" Fix the crash by checking if arg_name is non-NULL before comparing it.

—No exploit Fix available
Published
Dec 8, 2025
Updated
Jun 17, 2026
EPSS
0.2% · 14th 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 · 0.2%

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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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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

    • 3.1affected
    • a3998799fb4df0b0af8271a7d50c4269032397aa and later · before f95cb1526669ccdf7eb12eefd57a893953e3595faffected · git
    • a3998799fb4df0b0af8271a7d50c4269032397aa and later · before 12849ed107c0b2869fb775c81208050899006f07affected · git
    • a3998799fb4df0b0af8271a7d50c4269032397aa and later · before 337b7af273562b73c46ef77a724604ad139ca762affected · git
    • a3998799fb4df0b0af8271a7d50c4269032397aa and later · before a1e3fffe02e05c05357af91364ac0fc1ed425b5baffected · git
    • a3998799fb4df0b0af8271a7d50c4269032397aa and later · before f76fcb9d43ec014ac4a1bb983768696d5b032df9affected · git
    • a3998799fb4df0b0af8271a7d50c4269032397aa and later · before cb874a190f3f7c3c3fa5b979bee7a3b8cc3a19ccaffected · git
    • a3998799fb4df0b0af8271a7d50c4269032397aa and later · before 83b4e3d878ea6be9aec1d5a1ab177c766c64d1a0affected · git
    • a3998799fb4df0b0af8271a7d50c4269032397aa and later · before 8258d84a7917aeece773716518deadb7ad776cb7affected · git
    • a3998799fb4df0b0af8271a7d50c4269032397aa and later · before 98dba02d9a93eec11bffbb93c7c51624290702d2affected · git

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 6.1.37-16.1.37-1
Debian:13linuxbefore 6.3.7-16.3.7-1

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-2023-53783Dec 8, 2025 · blk-iocost: fix divide by 0 error in calc_lcoefs()
    0Monitor
  • ← EarlierCVE-2023-53784Dec 8, 2025 · drm: bridge: dw_hdmi: fix connector access for scdc
    0Monitor
  • Later →CVE-2023-53787Dec 8, 2025 · regulator: da9063: fix null pointer deref with partial DT config
    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 Linux12849ed107c0b2869fb775c81208050899006f07Vendor (CNA)
Linux Linux337b7af273562b73c46ef77a724604ad139ca762Vendor (CNA)
Linux Linux8258d84a7917aeece773716518deadb7ad776cb7Vendor (CNA)
Linux Linux83b4e3d878ea6be9aec1d5a1ab177c766c64d1a0Vendor (CNA)
Linux Linux98dba02d9a93eec11bffbb93c7c51624290702d2Vendor (CNA)
Linux Linuxa1e3fffe02e05c05357af91364ac0fc1ed425b5bVendor (CNA)
Linux Linuxcb874a190f3f7c3c3fa5b979bee7a3b8cc3a19ccVendor (CNA)
Linux Linuxf76fcb9d43ec014ac4a1bb983768696d5b032df9Vendor (CNA)
Linux Linuxf95cb1526669ccdf7eb12eefd57a893953e3595fVendor (CNA)
debian:linux6.1.37-1 · 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✗ → ✓

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References

Show all references (8 more)

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

All records