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NVD / CVE Program· CNA Linux

CVE-2023-53290: samples/bpf: Fix fout leak in hbm's run_bpf_prog

Noroxi assessment

Priority: Monitor (action score 22/100)

  • 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: 0.14% (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 23acb14af1914010dd0aae1bbb7fab28bf518b8e, 7560ed6592ff4077528c239c71e91b19de985b97, a7ec2f424f6edad34651137783a0a59eca9aa37e.

Low priority for now. Upgrade to Linux Linux 23acb14af1914010dd0aae1bbb7fab28bf518b8e, 7560ed6592ff4077528c239c71e91b19de985b97, a7ec2f424f6edad34651137783a0a59eca9aa37e 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: samples/bpf: Fix fout leak in hbm's run_bpf_prog Fix fout being fopen'ed but then not subsequently fclose'd. In the affected branch, fout is otherwise going out of scope.

MediumCVSS 5.5 · v3.1—No exploit Fix available
Published
Sep 16, 2025
Updated
Jun 17, 2026
EPSS
0.1% · 4th percentile

Report tools

JSON

Action score

22

Monitor

Low priority for now.

CVSS
22 / 40 · 5.5 / 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-2023-53290

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 kernel5.1 and later · before 5.4.244
  • linux linux kernel5.5 and later · before 5.10.181
  • linux linux kernel5.11 and later · before 5.15.113
  • linux linux kernel5.16 and later · before 6.1.30
  • linux linux kernel6.2 and later · before 6.3.4

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

    • 5.1affected
    • a1270fe95b74eb3195b107c494ed1f11b932a278 and later · before a7ec2f424f6edad34651137783a0a59eca9aa37eaffected · git
    • a1270fe95b74eb3195b107c494ed1f11b932a278 and later · before 7560ed6592ff4077528c239c71e91b19de985b97affected · git
    • a1270fe95b74eb3195b107c494ed1f11b932a278 and later · before e3e6e252d74f20f6fc610c7fef3ae7dda0109a6faffected · git
    • a1270fe95b74eb3195b107c494ed1f11b932a278 and later · before f2065b8b0a215bc6aa061287a2e3d9eab2446422affected · git
    • a1270fe95b74eb3195b107c494ed1f11b932a278 and later · before edf37bc8b03d3f948e679b2fd2d14464495f5d1baffected · git
    • a1270fe95b74eb3195b107c494ed1f11b932a278 and later · before 23acb14af1914010dd0aae1bbb7fab28bf518b8eaffected · git
    • before 5.1not affected · semver
    • 5.4.244 and later · up to and including 5.4.*not affected · semver
    • 5.10.181 and later · up to and including 5.10.*not affected · semver

Package-level exposure

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

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

Same product

linux: all records

Other highest-scoring records for the same primary product.

  • CVE-2026-31431crypto: 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-2023-53288Sep 16, 2025 · drm/client: Fix memory leak in drm_client_modeset_probe
    22Monitor
  • ← EarlierCVE-2023-53289Sep 16, 2025 · media: bdisp: Add missing check for create_workqueue
    22Monitor
  • Later →CVE-2023-53291Sep 16, 2025 · rcu/rcuscale: Stop kfree_scale_thread thread(s) after unloading rcuscale
    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 Linux23acb14af1914010dd0aae1bbb7fab28bf518b8eVendor (CNA)
Linux Linux7560ed6592ff4077528c239c71e91b19de985b97Vendor (CNA)
Linux Linuxa7ec2f424f6edad34651137783a0a59eca9aa37eVendor (CNA)
Linux Linuxe3e6e252d74f20f6fc610c7fef3ae7dda0109a6fVendor (CNA)
Linux Linuxedf37bc8b03d3f948e679b2fd2d14464495f5d1bVendor (CNA)
Linux Linuxf2065b8b0a215bc6aa061287a2e3d9eab2446422Vendor (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

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
none
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
None
Integrity impact
None
Availability impact
High

Weakness class (CWE)

CWE-401 · Missing Release of Memory after Effective Lifetime

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/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