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NVD / CVE Program· CNA Linux

CVE-2023-53179: netfilter: ipset: add the missing IP_SET_HASH_WITH_NET0 macro for ip_set_hash_netportnet.c

Noroxi assessment

Priority: Monitor (action score 31/100)

  • 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: 0.17% (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 050d91c03b28ca479df13dfb02bcd2c60dd6a878, 109e830585e89a03d554bf8ad0e668630d0a6260, 4.10.

Low priority for now. Upgrade to Linux Linux 050d91c03b28ca479df13dfb02bcd2c60dd6a878, 109e830585e89a03d554bf8ad0e668630d0a6260, 4.10 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: netfilter: ipset: add the missing IP_SET_HASH_WITH_NET0 macro for ip_set_hash_netportnet.c The missing IP_SET_HASH_WITH_NET0 macro in ip_set_hash_netportnet can lead to the use of wrong `CIDR_POS(c)` for calculating array offsets, which can lead to integer underflow. As a result, it leads to slab out-of-bound access. This patch adds back the IP_SET_HASH_WITH_NET0 macro to ip_set_hash_netportnet to address the issue.

HighCVSS 7.8 · v3.1—No exploit Fix available
Published
Sep 15, 2025
Updated
Oct 15, 2026
EPSS
0.1% · 6th percentile

Report tools

JSON

Action score

31

Monitor

Low priority for now.

CVSS
31 / 40 · 7.8 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.1%

CISA SSVC decision

Exploitation
none
Automatable
no
Technical impact
total

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
7.8
CNA · Linux
7.8
agree

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

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.

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When you'll hear from us

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  • 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 kernel4.4.165 and later · before 4.5
  • linux linux kernel4.9.141 and later · before 4.10
  • linux linux kernel4.14.84 and later · before 4.14.326
  • linux linux kernel4.19.5 and later · before 4.19.295
  • linux linux kernel4.20.1 and later · before 5.4.257
  • linux linux kernel5.5 and later · before 5.10.195
  • linux linux kernel5.11 and later · before 5.15.132
  • linux linux kernel5.16 and later · before 6.1.53
  • linux linux kernel6.2 and later · before 6.4.16
  • linux linux kernel6.5 and later · before 6.5.3
  • linux linux kernel4.20

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

    • 186642845b02e1a7944ef33c3a3ac41eba77517f, 919560afc21f91ca352a20394d5249aba1799690, 4.20affected
    • 0d5d0b5c41f766355f2b42c47d13ea001f754c7d and later · before 7935b636dd693dfe4483cfef4a1e91366c8103faaffected · git
    • cb3e590df429ce151d5041884a4947099b8ad6a7 and later · before e632d09dffc68b9602d6893a99bfe3001d36cefcaffected · git
    • 886503f34d63e681662057448819edb5b1057a97 and later · before 109e830585e89a03d554bf8ad0e668630d0a6260affected · git
    • 886503f34d63e681662057448819edb5b1057a97 and later · before 83091f8ac03f118086596f17c9a52d31d6ca94b3affected · git
    • 886503f34d63e681662057448819edb5b1057a97 and later · before a9e6142e5f8f6ac7d1bca45c1b2b13b084ea9e14affected · git
    • 886503f34d63e681662057448819edb5b1057a97 and later · before 7ca0706c68adadf86a36b60dca090f5e9481e808affected · git
    • 886503f34d63e681662057448819edb5b1057a97 and later · before d59b6fc405549f7caf31f6aa5da1d6bef746b166affected · git
    • 886503f34d63e681662057448819edb5b1057a97 and later · before d95c8420efe684b964e3aa28108e9a354bcd7225affected · git
    • 886503f34d63e681662057448819edb5b1057a97 and later · before 050d91c03b28ca479df13dfb02bcd2c60dd6a878affected · git

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 6.1.55-16.1.55-1
Debian:13linuxbefore 6.5.3-16.5.3-1
openSUSE:Leap 15.6dtb-aarch64before 6.4.0-150600.23.73.16.4.0-150600.23.73.1
openSUSE:Leap 15.6kernel-64kbbefore 6.4.0-150600.23.73.16.4.0-150600.23.73.1
openSUSE:Leap 15.6kernel-azurebefore 6.4.0-150600.8.52.16.4.0-150600.8.52.1
openSUSE:Leap 15.6kernel-debugbefore 6.4.0-150600.23.73.16.4.0-150600.23.73.1
openSUSE:Leap 15.6kernel-defaultbefore 6.4.0-150600.23.73.16.4.0-150600.23.73.1
openSUSE:Leap 15.6kernel-default-basebefore 6.4.0-150600.23.73.1.150600.12.32.16.4.0-150600.23.73.1.150600.12.32.1
openSUSE:Leap 15.6kernel-docsbefore 6.4.0-150600.23.73.16.4.0-150600.23.73.1
openSUSE:Leap 15.6kernel-kvmsmallbefore 6.4.0-150600.23.73.16.4.0-150600.23.73.1
openSUSE:Leap 15.6kernel-obs-buildbefore 6.4.0-150600.23.73.16.4.0-150600.23.73.1
openSUSE:Leap 15.6kernel-obs-qabefore 6.4.0-150600.23.73.16.4.0-150600.23.73.1
openSUSE:Leap 15.6kernel-rtbefore 6.4.0-150600.10.55.16.4.0-150600.10.55.1
openSUSE:Leap 15.6kernel-rt_debugbefore 6.4.0-150600.10.55.16.4.0-150600.10.55.1
openSUSE:Leap 15.6kernel-sourcebefore 6.4.0-150600.23.73.16.4.0-150600.23.73.1
openSUSE:Leap 15.6kernel-source-azurebefore 6.4.0-150600.8.52.16.4.0-150600.8.52.1
openSUSE:Leap 15.6kernel-source-rtbefore 6.4.0-150600.10.55.16.4.0-150600.10.55.1
openSUSE:Leap 15.6kernel-symsbefore 6.4.0-150600.23.73.16.4.0-150600.23.73.1
openSUSE:Leap 15.6kernel-syms-azurebefore 6.4.0-150600.8.52.16.4.0-150600.8.52.1
openSUSE:Leap 15.6kernel-syms-rtbefore 6.4.0-150600.10.55.16.4.0-150600.10.55.1
openSUSE:Leap 15.6kernel-zfcpdumpbefore 6.4.0-150600.23.73.16.4.0-150600.23.73.1
SUSE:Linux Enterprise Live Patching 15 SP6kernel-livepatch-SLE15-SP6_Update_16before 1-150600.13.3.11-150600.13.3.1
SUSE:Linux Enterprise Live Patching 15 SP6kernel-livepatch-SLE15-SP6-RT_Update_16before 1-150600.1.3.11-150600.1.3.1
SUSE:Linux Enterprise Live Patching 15 SP7kernel-livepatch-SLE15-SP7_Update_6before 1-150700.15.3.11-150700.15.3.1

+36

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-2023-53174Sep 15, 2025 · scsi: core: Fix possible memory leak if device_add() fails
    22Monitor
  • ← EarlierCVE-2023-53176Sep 15, 2025 · serial: 8250: Reinit port->pm on port specific driver unbind
    22Monitor
  • Later →CVE-2023-53184Sep 15, 2025 · arm64/sme: Set new vector length before reallocating
    31Monitor

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 Linux050d91c03b28ca479df13dfb02bcd2c60dd6a878Vendor (CNA)
Linux Linux109e830585e89a03d554bf8ad0e668630d0a6260Vendor (CNA)
Linux Linux4.10Vendor (CNA)
Linux Linux4.14.326Vendor (CNA)
Linux Linux4.19.295Vendor (CNA)
Linux Linux4.5Vendor (CNA)
Linux Linux7935b636dd693dfe4483cfef4a1e91366c8103faVendor (CNA)
Linux Linux7ca0706c68adadf86a36b60dca090f5e9481e808Vendor (CNA)
Linux Linux83091f8ac03f118086596f17c9a52d31d6ca94b3Vendor (CNA)
Linux Linuxa9e6142e5f8f6ac7d1bca45c1b2b13b084ea9e14Vendor (CNA)
Linux Linuxd59b6fc405549f7caf31f6aa5da1d6bef746b166Vendor (CNA)
Linux Linuxd95c8420efe684b964e3aa28108e9a354bcd7225Vendor (CNA)
Linux Linuxe632d09dffc68b9602d6893a99bfe3001d36cefcVendor (CNA)
debian:linux6.1.55-1 · Debian:12Package registry (OSV)
opensuse:dtb-aarch646.4.0-150600.23.73.1 · openSUSE:Leap 15.6Package registry (OSV)
opensuse:kernel-64kb6.4.0-150600.23.73.1 · openSUSE:Leap 15.6Package registry (OSV)
opensuse:kernel-debug6.4.0-150600.23.73.1 · openSUSE:Leap 15.6Package registry (OSV)
opensuse:kernel-default6.4.0-150600.23.73.1 · openSUSE:Leap 15.6Package registry (OSV)
opensuse:kernel-default-base6.4.0-150600.23.73.1.150600.12.32.1 · openSUSE:Leap 15.6Package registry (OSV)
opensuse:kernel-docs6.4.0-150600.23.73.1 · openSUSE:Leap 15.6Package registry (OSV)
opensuse:kernel-kvmsmall6.4.0-150600.23.73.1 · openSUSE:Leap 15.6Package registry (OSV)
opensuse:kernel-obs-build6.4.0-150600.23.73.1 · openSUSE:Leap 15.6Package registry (OSV)
opensuse:kernel-obs-qa6.4.0-150600.23.73.1 · openSUSE:Leap 15.6Package registry (OSV)
opensuse:kernel-source6.4.0-150600.23.73.1 · openSUSE:Leap 15.6Package registry (OSV)
opensuse:kernel-syms6.4.0-150600.23.73.1 · openSUSE:Leap 15.6Package registry (OSV)
opensuse:kernel-zfcpdump6.4.0-150600.23.73.1 · openSUSE:Leap 15.6Package registry (OSV)
suse:kernel-64kb6.4.0-150600.23.73.1 · SUSE:Linux Enterprise Module for Basesystem 15 SP6Package registry (OSV)
suse:kernel-azure6.4.0-150600.8.52.1 · SUSE:Linux Enterprise Module for Public Cloud 15 SP6Package registry (OSV)
suse:kernel-default6.4.0-150600.23.73.1 · SUSE:Linux Enterprise Module for Basesystem 15 SP6Package registry (OSV)
suse:kernel-default-base6.4.0-150600.23.73.1.150600.12.32.1 · SUSE:Linux Enterprise Module for Basesystem 15 SP6Package registry (OSV)

+8

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
high · data or configuration can be modified
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
High
Availability impact
High

Weakness class (CWE)

CWE-787 · Out-of-bounds Write

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/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. SSVC exploitation— → none
  2. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Show all references (8 more)

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

All records