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NVD / CVE Program· CNA Linux

CVE-2023-53766: FS: JFS: Check for read-only mounted filesystem in txBegin

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: 0.19% (FIRST EPSS).
  • Fixed version: Linux Linux 2a8807f9f511c64de0c7cc9900a1683e3d72a3e5, 2febd5f81e4bfba61d9f374dcca628aff374cc56, 5c094ca994824e038b6a97835ded4e5d1d808504.

Low priority for now. Upgrade to Linux Linux 2a8807f9f511c64de0c7cc9900a1683e3d72a3e5, 2febd5f81e4bfba61d9f374dcca628aff374cc56, 5c094ca994824e038b6a97835ded4e5d1d808504 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: FS: JFS: Check for read-only mounted filesystem in txBegin This patch adds a check for read-only mounted filesystem in txBegin before starting a transaction potentially saving from NULL pointer deref.

—No exploit Fix available
Published
Dec 7, 2025
Updated
Jun 17, 2026
EPSS
0.1% · 9th 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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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

    • 2.6.12affected
    • 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and later · before a88efca805bea93cea9187dfd00835aa7093bf1baffected · git
    • 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and later · before 97c1f26e4d4af55e8584e4646dd5c5fa7baf62c7affected · git
    • 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and later · before 2a8807f9f511c64de0c7cc9900a1683e3d72a3e5affected · git
    • 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and later · before 5c094ca994824e038b6a97835ded4e5d1d808504affected · git
    • 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and later · before 2febd5f81e4bfba61d9f374dcca628aff374cc56affected · git
    • 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and later · before aa7cdf487ab3fa47284daaccc3d7d5de01c6a84caffected · git
    • 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and later · before b0ed8ed0428ee96092da6fefa5cfacbe4abed701affected · git
    • 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and later · before 95e2b352c03b0a86c5717ba1d24ea20969abcaccaffected · git
    • before 2.6.12not 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 6.4.11-16.4.11-1
openSUSE:Leap 15.6dtb-aarch64before 6.4.0-150600.23.84.16.4.0-150600.23.84.1
openSUSE:Leap 15.6kernel-64kbbefore 6.4.0-150600.23.84.16.4.0-150600.23.84.1
openSUSE:Leap 15.6kernel-debugbefore 6.4.0-150600.23.84.16.4.0-150600.23.84.1
openSUSE:Leap 15.6kernel-defaultbefore 6.4.0-150600.23.84.16.4.0-150600.23.84.1
openSUSE:Leap 15.6kernel-default-basebefore 6.4.0-150600.23.84.1.150600.12.38.16.4.0-150600.23.84.1.150600.12.38.1
openSUSE:Leap 15.6kernel-docsbefore 6.4.0-150600.23.84.16.4.0-150600.23.84.1
openSUSE:Leap 15.6kernel-kvmsmallbefore 6.4.0-150600.23.84.16.4.0-150600.23.84.1
openSUSE:Leap 15.6kernel-obs-buildbefore 6.4.0-150600.23.84.16.4.0-150600.23.84.1
openSUSE:Leap 15.6kernel-obs-qabefore 6.4.0-150600.23.84.16.4.0-150600.23.84.1
openSUSE:Leap 15.6kernel-sourcebefore 6.4.0-150600.23.84.16.4.0-150600.23.84.1
openSUSE:Leap 15.6kernel-symsbefore 6.4.0-150600.23.84.16.4.0-150600.23.84.1
openSUSE:Leap 15.6kernel-zfcpdumpbefore 6.4.0-150600.23.84.16.4.0-150600.23.84.1
SUSE:Linux Enterprise Live Patching 15 SP6kernel-defaultbefore 6.4.0-150600.23.84.16.4.0-150600.23.84.1
SUSE:Linux Enterprise Live Patching 15 SP6kernel-livepatch-SLE15-SP6_Update_19before 1-150600.13.3.11-150600.13.3.1
SUSE:Linux Enterprise Live Patching 15 SP7kernel-livepatch-SLE15-SP7_Update_8before 1-150700.15.3.11-150700.15.3.1
SUSE:Linux Enterprise Live Patching 15 SP7kernel-livepatch-SLE15-SP7-RT_Update_8before 1-150700.1.3.11-150700.1.3.1
SUSE:Linux Enterprise Module for Basesystem 15 SP7kernel-64kbbefore 6.4.0-150700.53.28.16.4.0-150700.53.28.1
SUSE:Linux Enterprise Module for Basesystem 15 SP7kernel-defaultbefore 6.4.0-150700.53.28.16.4.0-150700.53.28.1
SUSE:Linux Enterprise Module for Basesystem 15 SP7kernel-default-basebefore 6.4.0-150700.53.28.1.150700.17.19.16.4.0-150700.53.28.1.150700.17.19.1
SUSE:Linux Enterprise Module for Basesystem 15 SP7kernel-sourcebefore 6.4.0-150700.53.28.16.4.0-150700.53.28.1
SUSE:Linux Enterprise Module for Basesystem 15 SP7kernel-zfcpdumpbefore 6.4.0-150700.53.28.16.4.0-150700.53.28.1
SUSE:Linux Enterprise Module for Development Tools 15 SP7kernel-docsbefore 6.4.0-150700.53.28.16.4.0-150700.53.28.1

+21

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-2023-53763Dec 7, 2025 · Revert "f2fs: fix to do sanity check on extent cache correctly"
    31Monitor
  • ← EarlierCVE-2023-53765Dec 7, 2025 · dm cache: free background tracker's queued work in btracker_destroy
    0Monitor
  • Later →CVE-2023-53767Dec 7, 2025 · wifi: ath12k: fix memory leak in ath12k_qmi_driver_event_work()
    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 Linux2a8807f9f511c64de0c7cc9900a1683e3d72a3e5Vendor (CNA)
Linux Linux2febd5f81e4bfba61d9f374dcca628aff374cc56Vendor (CNA)
Linux Linux5c094ca994824e038b6a97835ded4e5d1d808504Vendor (CNA)
Linux Linux95e2b352c03b0a86c5717ba1d24ea20969abcaccVendor (CNA)
Linux Linux97c1f26e4d4af55e8584e4646dd5c5fa7baf62c7Vendor (CNA)
Linux Linuxa88efca805bea93cea9187dfd00835aa7093bf1bVendor (CNA)
Linux Linuxaa7cdf487ab3fa47284daaccc3d7d5de01c6a84cVendor (CNA)
Linux Linuxb0ed8ed0428ee96092da6fefa5cfacbe4abed701Vendor (CNA)
debian:linux6.1.52-1 · Debian:12Package registry (OSV)
opensuse:dtb-aarch646.4.0-150600.23.84.1 · openSUSE:Leap 15.6Package registry (OSV)
opensuse:kernel-64kb6.4.0-150600.23.84.1 · openSUSE:Leap 15.6Package registry (OSV)
opensuse:kernel-debug6.4.0-150600.23.84.1 · openSUSE:Leap 15.6Package registry (OSV)
opensuse:kernel-default6.4.0-150600.23.84.1 · openSUSE:Leap 15.6Package registry (OSV)
opensuse:kernel-default-base6.4.0-150600.23.84.1.150600.12.38.1 · openSUSE:Leap 15.6Package registry (OSV)
opensuse:kernel-docs6.4.0-150600.23.84.1 · openSUSE:Leap 15.6Package registry (OSV)
opensuse:kernel-kvmsmall6.4.0-150600.23.84.1 · openSUSE:Leap 15.6Package registry (OSV)
opensuse:kernel-obs-build6.4.0-150600.23.84.1 · openSUSE:Leap 15.6Package registry (OSV)
opensuse:kernel-obs-qa6.4.0-150600.23.84.1 · openSUSE:Leap 15.6Package registry (OSV)
opensuse:kernel-source6.4.0-150600.23.84.1 · openSUSE:Leap 15.6Package registry (OSV)
opensuse:kernel-syms6.4.0-150600.23.84.1 · openSUSE:Leap 15.6Package registry (OSV)
opensuse:kernel-zfcpdump6.4.0-150600.23.84.1 · openSUSE:Leap 15.6Package registry (OSV)
suse:kernel-64kb6.4.0-150600.23.84.1 · SUSE:Linux Enterprise Server 15 SP6-LTSSPackage registry (OSV)
suse:kernel-azure6.4.0-150700.20.24.1 · SUSE:Linux Enterprise Module for Public Cloud 15 SP7Package registry (OSV)
suse:kernel-default6.4.0-150600.23.84.1 · SUSE:Linux Enterprise Live Patching 15 SP6Package registry (OSV)
suse:kernel-default-base6.4.0-150600.23.84.1.150600.12.38.1 · SUSE:Linux Enterprise Server 15 SP6-LTSSPackage registry (OSV)
suse:kernel-docs6.4.0-150600.23.84.1 · SUSE:Linux Enterprise Server 15 SP6-LTSSPackage registry (OSV)
suse:kernel-livepatch-SLE15-SP6_Update_191-150600.13.3.1 · SUSE:Linux Enterprise Live Patching 15 SP6Package registry (OSV)
suse:kernel-livepatch-SLE15-SP7-RT_Update_81-150700.1.3.1 · SUSE:Linux Enterprise Live Patching 15 SP7Package registry (OSV)
suse:kernel-obs-build6.4.0-150600.23.84.1 · SUSE:Linux Enterprise Server 15 SP6-LTSSPackage registry (OSV)
suse:kernel-rt6.4.0-150700.7.28.1 · SUSE:Real Time Module 15 SP7Package registry (OSV)

+7

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 (7 more)

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

All records