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CVE Record

CVE-2023-52482: x86/srso: Add SRSO mitigation for Hygon processors

In the Linux kernel, the following vulnerability has been resolved: x86/srso: Add SRSO mitigation for Hygon processors Add mitigation for the speculative return stack overflow vulnerability which exists on Hygon processors too.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysisunknown

Security readout for executives and security teams

Plain-English summary

This is a Linux kernel CPU side-channel hardening issue. Linux added SRSO mitigation for Hygon processors because speculative return stack overflow exists on them too. Business urgency depends mainly on whether Hygon-based systems are present and whether their kernels include the relevant stable fixes.

Executive priority

Moderate operational priority where Hygon Linux systems exist; otherwise low immediate business exposure. Because severity is not scored, prioritize verification and normal kernel patching rather than emergency response.

Technical view

The CVE describes an x86 SRSO mitigation gap for Hygon processors in the Linux kernel. Upstream stable commits resolve it by adding Hygon processor coverage. The source bundle provides no CVSS score, CWE, or detailed attack preconditions, so risk should be assessed through asset exposure and kernel patch state.

Likely exposure

Likely limited to Linux systems running on Hygon x86 processors with affected kernel builds. The bundle lists Linux kernel versions and stable branches as affected but does not provide complete distribution-specific exposure details.

Exploitation context

The bundle does not cite active exploitation, and KEV is false. Treat this as a speculative execution class issue requiring patch verification, not as confirmed in-the-wild compromise evidence.

Researcher notes

Evidence is sparse: the record states the vulnerability exists on Hygon processors and is resolved by adding SRSO mitigation. No exploit status, CVSS, CWE, or attack workflow is provided in the bundle.

Mitigation direction

  • Inventory Linux systems using Hygon processors.
  • Check kernel versions against vendor and distribution advisories.
  • Apply Linux kernel stable or distribution updates containing the referenced fixes.
  • Prioritize shared, multi-tenant, and sensitive workload hosts.
  • Monitor vendor guidance for any updated mitigation requirements.

Validation and detection

  • Confirm whether any fleet systems use Hygon CPUs.
  • Record running kernel versions on identified systems.
  • Map those versions to vendor fixed kernel packages or stable commits.
  • Verify Debian LTS or other distribution advisories where applicable.
  • Document systems that cannot be patched and compensating controls.
Prepared
Confidence
medium
Sources
8

Public sources used

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

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CVE-2023-52482 mapping review

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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors
0Timeline events
0ADP providers
7Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
LinuxLinuxc9661c1e80b609cd038db7c908e061f0535804ef, c9661c1e80b609cd038db7c908e061f0535804ef, c9661c1e80b609cd038db7c908e061f0535804ef, c9661c1e80b609cd038db7c908e061f0535804ef, c9661c1e80b609cd038db7c908e061f0535804efunaffected
LinuxLinux4.20, 0, 5.10.215, 5.15.134, 6.1.56, 6.5.6, 6.6affected
Weakness

CWE details

No CWE listed

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.