Skip to content
Noroxi
NVD / CVE Program· CNA Linux

CVE-2023-53357: md/raid10: check slab-out-of-bounds in md_bitmap_get_counter

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: 0.19% (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 152bb26796ff054af50b2ee1b3ca56e364e4f61b, 301867b1c16805aebbc306aafa6ecdc68b73c7e5, 374fb914304d9b500721007f3837ea8f1f9a2418.

Low priority for now. Upgrade to Linux Linux 152bb26796ff054af50b2ee1b3ca56e364e4f61b, 301867b1c16805aebbc306aafa6ecdc68b73c7e5, 374fb914304d9b500721007f3837ea8f1f9a2418 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: md/raid10: check slab-out-of-bounds in md_bitmap_get_counter If we write a large number to md/bitmap_set_bits, md_bitmap_checkpage() will return -EINVAL because 'page >= bitmap->pages', but the return value was not checked immediately in md_bitmap_get_counter() in order to set *blocks value and slab-out-of-bounds occurs. Move check of 'page >= bitmap->pages' to md_bitmap_get_counter() and return directly if true.

HighCVSS 7.1 · v3.1—No exploit Fix available
Published
Sep 17, 2025
Updated
Jun 17, 2026
EPSS
0.1% · 9th 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 · 0.1%

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-2023-53357

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

One daily email digest (06:00 UTC); connect a webhook for KEV listings and weaponized exploits instantly.

Your free account also gets you

Running WordPress? Scan your site free with WP Lens

  • Stack alerts: add the products and versions you run, get the new CVEs that affect them
  • Uptime monitoring: 1 site, instant email when it goes down
  • Add your domain: subdomains and takeover risk scanned every week (1 domain)
  • 10 scans an hour on the security tools (3 a day without an account), an API key and MCP
  • All your scans in one panel: findings, what changed in the last scan, a report per domain or per client (PDF, share link)
All free tools

Sign up with email · Have an account? Sign in

Free account, no card. Unfollow any time.

Don't want an account? Get "Exploited this week" by email every MondayDon't want an account? RSS feed for linux records

Running WordPress? Scan your site free with WP Lens

Is your version affected? Check it

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.

We use this product, ask for help

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 kernel2.6.36 and later · before 4.19.291
  • linux linux kernel4.20 and later · before 5.4.251
  • linux linux kernel5.5 and later · before 5.10.188
  • linux linux kernel5.11 and later · before 5.15.121
  • linux linux kernel5.16 and later · before 6.1.39
  • linux linux kernel6.2 and later · before 6.3.13
  • linux linux kernel6.4 and later · before 6.4.4

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

    • 2.6.36affected
    • ef4256733506f2459a0c436b62267d22a3f0cec6 and later · before 374fb914304d9b500721007f3837ea8f1f9a2418affected · git
    • ef4256733506f2459a0c436b62267d22a3f0cec6 and later · before b0b971fe7d61411ede63c3291764dbde1577ef2caffected · git
    • ef4256733506f2459a0c436b62267d22a3f0cec6 and later · before 39fa14e824acfd470db4f42c354297456bd82b53affected · git
    • ef4256733506f2459a0c436b62267d22a3f0cec6 and later · before a134dd582c0d5b6068efa308bd485cf1d00b3f65affected · git
    • ef4256733506f2459a0c436b62267d22a3f0cec6 and later · before be1a3ec63a840cc9e59a033acf154f56255699a1affected · git
    • ef4256733506f2459a0c436b62267d22a3f0cec6 and later · before 152bb26796ff054af50b2ee1b3ca56e364e4f61baffected · git
    • ef4256733506f2459a0c436b62267d22a3f0cec6 and later · before bea301c046110bf421a3ce153fb868cb8d618e90affected · git
    • ef4256733506f2459a0c436b62267d22a3f0cec6 and later · before 301867b1c16805aebbc306aafa6ecdc68b73c7e5affected · git
    • before 2.6.36not 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-2026-31431crypto: 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-2023-53355Sep 17, 2025 · staging: pi433: fix memory leak with using debugfs_lookup()
    22Monitor
  • ← EarlierCVE-2023-53356Sep 17, 2025 · usb: gadget: u_serial: Add null pointer check in gserial_suspend
    22Monitor
  • Later →CVE-2023-53358Sep 17, 2025 · ksmbd: fix racy issue under cocurrent smb2 tree disconnect
    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 Linux152bb26796ff054af50b2ee1b3ca56e364e4f61bVendor (CNA)
Linux Linux301867b1c16805aebbc306aafa6ecdc68b73c7e5Vendor (CNA)
Linux Linux374fb914304d9b500721007f3837ea8f1f9a2418Vendor (CNA)
Linux Linux39fa14e824acfd470db4f42c354297456bd82b53Vendor (CNA)
Linux Linuxa134dd582c0d5b6068efa308bd485cf1d00b3f65Vendor (CNA)
Linux Linuxb0b971fe7d61411ede63c3291764dbde1577ef2cVendor (CNA)
Linux Linuxbe1a3ec63a840cc9e59a033acf154f56255699a1Vendor (CNA)
Linux Linuxbea301c046110bf421a3ce153fb868cb8d618e90Vendor (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

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-125 · Out-of-bounds Read

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.

ATT&CK techniques

—

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