CVE-2026-93272

Modem startup failure via regulator pointer overrun

Published Sep 24, 2026 · Updated Sep 24, 2026

Out-of-bounds array access in Linux qcom_wcnss on pronto-v3 systems causes modem startup failure on affected devices. The wcnss_init_regulators path advances the regulator-info pointer for attached power domains even though pronto-v3 lists no matching power-domain regulators, moving it beyond the vregs array. The failure is limited to Qualcomm MSM8953/SDM632 devices using pronto-v3, and it was observed with LLVM-built kernels when out-of-bounds memory supplied a zeroed regulator identifier.

CVSS severityUnavailable
Unscored
EPSS probability0.18%
Next 30 days · Oct 19, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Out-of-bounds array access in Linux qcom_wcnss on pronto-v3 systems causes modem startup failure on affected devices. The wcnss_init_regulators path advances the regulator-info pointer for attached power domains even though pronto-v3 lists no matching power-domain regulators, moving it beyond the vregs array. The failure is limited to Qualcomm MSM8953/SDM632 devices using pronto-v3, and it was observed with LLVM-built kernels when out-of-bounds memory supplied a zeroed regulator identifier.

The record

CVE
CVE-2026-93272
Published
Sep 24, 2026
Updated
Sep 24, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
Unavailable
Attack vector
Unavailable
Privileges
Unavailable

Timeline

How it unfolded

  1. Sep 24, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 24, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=04a89c98810d2dba8187120c07fdb732aa40ca14
  2. Affected versionversion=5.15.185 <5.16
  3. Affected versionversion=6.1.141 <6.2
  4. Affected versionversion=6.12.31 <6.13
  5. Affected versionversion=6.14.9 <6.15
  6. Affected versionversion=6.15
  7. Affected versionversion=654c295f9079d2c7875172142022168e34c4e34e
  8. Affected versionversion=65991ea8a6d1e68effdc01d95ebe39f1653f7b71 <3dbc90b9c22ea96e37bf55f6011e63b5123ec668
  9. Affected versionversion=65991ea8a6d1e68effdc01d95ebe39f1653f7b71 <bce6b48af3abf7468d12ef4933f21bd8c1d822e9
  10. Affected versionversion=6.6.93 <6.7
  11. Affected versionversion=69bb5b3ae348040e385113efba5bdc76396644d0
  12. Affected versionversion=8d0d4c11cace475f1b07f98ee3d2bd334590e17b
  13. Affected versionversion=fef1e1487dea81c2b4560e393ba4b0be57e28d01

What conditions does exploitation require?

Attack vectorUnavailable in this record.
Required privilegesUnavailable in this record.

What is affected?

The Linux Kernel Organization · Linuxversion=04a89c98810d2dba8187120c07fdb732aa40ca14; version=5.15.185 <5.16; version=6.1.141 <6.2; version=6.12.31 <6.13; version=6.14.9 <6.15; version=6.15; version=654c295f9079d2c7875172142022168e34c4e34e; version=65991ea8a6d1e68effdc01d95ebe39f1653f7b71 <3dbc90b9c22ea96e37bf55f6011e63b5123ec668; version=65991ea8a6d1e68effdc01d95ebe39f1653f7b71 <bce6b48af3abf7468d12ef4933f21bd8c1d822e9; version=6.6.93 <6.7; version=69bb5b3ae348040e385113efba5bdc76396644d0; version=8d0d4c11cace475f1b07f98ee3d2bd334590e17b; version=fef1e1487dea81c2b4560e393ba4b0be57e28d01

Published CVSS scores

No CVSS assessment is available in this record.

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Activity data is delayed. The latest report is Sep 28, 2026.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 22, 2026Sep 28, 2026
Latest reporting daySep 28, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
VectorUnavailable
PrivilegesUnavailable
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

No sourced classifications are available.

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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