CVE-2024-49930

Kernel memory disclosure via incorrect ath11k ring index

Published Oct 21, 2024 · Updated Aug 5, 2026

Out-of-bounds read in Linux and the SIMATIC S7-1500 TM MFP subsystem allows local users to read kernel memory during packet reception. ath11k_dp_process_rx() uses a REO destination SRNG ring identifier to index the fixed-size ath11k_soc_dp_stats::hal_reo_error array instead of the normal ring identifier. Reachability requires a system using the ath11k driver for supported Qualcomm Wi-Fi hardware and local access; Siemens rates its embedded subsystem case as requiring high privileges.

CVSS severity7.8
High
EPSS probability0.38%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Out-of-bounds read in Linux and the SIMATIC S7-1500 TM MFP subsystem allows local users to read kernel memory during packet reception. ath11k_dp_process_rx() uses a REO destination SRNG ring identifier to index the fixed-size ath11k_soc_dp_stats::hal_reo_error array instead of the normal ring identifier. Reachability requires a system using the ath11k driver for supported Qualcomm Wi-Fi hardware and local access; Siemens rates its embedded subsystem case as requiring high privileges.

The record

CVE
CVE-2024-49930
Published
Oct 21, 2024
Updated
Aug 5, 2026
Vendor
Siemens
Product
SIMATIC S7-1500 TM MFP - GNU/Linux subsystem
Classifications
CWE-129, CWE-125
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Oct 21, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 5, 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=0 <*

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Siemens · SIMATIC S7-1500 TM MFP - GNU/Linux subsystemversion=0 <*
The Linux Kernel Organization · Linuxversion=5.6; version=d5c65159f2895379e11ca13f62feabe93278985d <01b77f5ee11c89754fb836af8f76799d3b72ae2f; version=d5c65159f2895379e11ca13f62feabe93278985d <0f26f26944035ec67546a944f182cbad6577a9c0; version=d5c65159f2895379e11ca13f62feabe93278985d <4dd732893bd38cec51f887244314e2b47f0d658f; version=d5c65159f2895379e11ca13f62feabe93278985d <6045ef5b4b00fee3629689f791992900a1c94009; version=d5c65159f2895379e11ca13f62feabe93278985d <69f253e46af98af17e3efa3e5dfa72fcb7d1983d; version=d5c65159f2895379e11ca13f62feabe93278985d <73e235728e515faccc104b0153b47d0f263b3344; version=d5c65159f2895379e11ca13f62feabe93278985d <7a552bc2f3efe2aaf77a85cb34cdf4a63d81a1a7

Published CVSS scores

6.4Siemens ProductCERTCVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
7.8NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

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.

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-129Improper Validation of Array Index
CWE-125Out-of-bounds Read

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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Your stack

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