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NVD / CVE Program· CNA Linux

CVE-2023-52746: xfrm/compat: prevent potential spectre v1 gadget in xfrm_xlate32_attr()

LowCVSS 2.5 · v3.1—No exploit Fix available

Noroxi assessment

Priority: Monitor (action score 10/100)

  • 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: 0.24% (FIRST EPSS).
  • Someone with local access to the system can trigger it. A low-privileged account is enough. No user action is required. Special conditions such as timing or configuration are required.
  • Fixed version: Linux Linux 419674224390fca298020fc0751a20812f84b12d, 5dc688fae6b7be9dbbf5304a3d2520d038e06db5, a893cc644812728e86e9aff517fd5698812ecef0.

Low priority for now. Upgrade to Linux Linux 419674224390fca298020fc0751a20812f84b12d, 5dc688fae6b7be9dbbf5304a3d2520d038e06db5, a893cc644812728e86e9aff517fd5698812ecef0 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: xfrm/compat: prevent potential spectre v1 gadget in xfrm_xlate32_attr() int type = nla_type(nla); if (type > XFRMA_MAX) { return -EOPNOTSUPP; } @type is then used as an array index and can be used as a Spectre v1 gadget. if (nla_len(nla) < compat_policy[type].len) { array_index_nospec() can be used to prevent leaking content of kernel memory to malicious users.

Published
May 21, 2024
Updated
Jun 17, 2026
EPSS
0.2% · 15th percentile

Report tools

JSON

Action score

10

Monitor

Low priority for now.

CVSS
10 / 40 · 2.5 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.2%

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-2023-52746

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

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

    • 5.10affected
    • 5106f4a8acff480e244300bc5097c0ad7048c3a2 and later · before a893cc644812728e86e9aff517fd5698812ecef0affected · git
    • 5106f4a8acff480e244300bc5097c0ad7048c3a2 and later · before 5dc688fae6b7be9dbbf5304a3d2520d038e06db5affected · git
    • 5106f4a8acff480e244300bc5097c0ad7048c3a2 and later · before 419674224390fca298020fc0751a20812f84b12daffected · git
    • 5106f4a8acff480e244300bc5097c0ad7048c3a2 and later · before b6ee896385380aa621102e8ea402ba12db1cabffaffected · git
    • before 5.10not affected · semver
    • 5.10.168 and later · up to and including 5.10.*not affected · semver
    • 5.15.94 and later · up to and including 5.15.*not affected · semver
    • 6.1.12 and later · up to and including 6.1.*not affected · semver
    • 6.2 and laternot affected · original_commit_for_fix
Affected versions · NVD (4)

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • linux linux kernel5.10 and later · before 5.10.168
  • linux linux kernel5.11 and later · before 5.15.94
  • linux linux kernel5.16 and later · before 6.1.12
  • linux linux kernel6.2

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 6.1.12-16.1.12-1

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-2023-52744May 21, 2024 · RDMA/irdma: Fix potential NULL-ptr-dereference
    22Monitor
  • ← EarlierCVE-2023-52745May 21, 2024 · IB/IPoIB: Fix legacy IPoIB due to wrong number of queues
    22Monitor
  • Later →CVE-2023-52747May 21, 2024 · IB/hfi1: Restore allocated resources on failed copyout
    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 Linux419674224390fca298020fc0751a20812f84b12dVendor (CNA)
Linux Linux5dc688fae6b7be9dbbf5304a3d2520d038e06db5Vendor (CNA)
Linux Linuxa893cc644812728e86e9aff517fd5698812ecef0Vendor (CNA)
Linux Linuxb6ee896385380aa621102e8ea402ba12db1cabffVendor (CNA)
debian:linux6.1.12-1 · 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.

Not on record for this CVE: EPSS history · patch commit or PR link · researcher credit · variant or chain candidate · public bounty program.

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.
  • Special conditions such as timing or configuration are required.

If successful

Confidentiality
low · data can be read
Integrity
none
Availability
none
Attack vector
Local
Attack complexity
High
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality impact
Low
Integrity impact
None
Availability impact
None

Weakness class (CWE)

CWE-401 · Missing Release of Memory after Effective Lifetime

CVSS vector

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

nvd-secondary

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.

References

Show all references (3 more)

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

All records