CVE-2024-50128

Kernel memory disclosure or crash via oversized maxtype

Published Nov 5, 2024 · Updated Aug 5, 2026

Out-of-bounds read in the WWAN subsystem of affected Linux kernels allows local users to disclose kernel memory or crash the system. The wwan_rtnl_link_ops structure sets maxtype to __IFLA_WWAN_MAX although wwan_rtnl_policy is sized for IFLA_WWAN_MAX, so netlink validation reads beyond the global policy array. Reaching the parser requires local low-privilege access and crafted netlink attributes; consequences are limited to memory disclosure or a crash.

CVSS severity7.1
High
EPSS probability0.23%
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 the WWAN subsystem of affected Linux kernels allows local users to disclose kernel memory or crash the system. The wwan_rtnl_link_ops structure sets maxtype to __IFLA_WWAN_MAX although wwan_rtnl_policy is sized for IFLA_WWAN_MAX, so netlink validation reads beyond the global policy array. Reaching the parser requires local low-privilege access and crafted netlink attributes; consequences are limited to memory disclosure or a crash.

The record

CVE
CVE-2024-50128
Published
Nov 5, 2024
Updated
Aug 5, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-125
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Nov 5, 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=5.14
  2. Affected versionversion=88b710532e53de2466d1033fb1d5125aabf3215a <47dd5447cab8ce30a847a0337d5341ae4c7476a7
  3. Affected versionversion=88b710532e53de2466d1033fb1d5125aabf3215a <69076f8435c1c5dae5f814eaf4c361d1f00b22a3
  4. Affected versionversion=88b710532e53de2466d1033fb1d5125aabf3215a <9683804e36668f6093fb06e202eed2f188ba437e
  5. Affected versionversion=88b710532e53de2466d1033fb1d5125aabf3215a <a3ffce63dcc0c208edd4d196e17baed22ebcb643
  6. Affected versionversion=88b710532e53de2466d1033fb1d5125aabf3215a <c9a0aed51977198df005d0a623090e38e2d77d7b

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=5.14; version=88b710532e53de2466d1033fb1d5125aabf3215a <47dd5447cab8ce30a847a0337d5341ae4c7476a7; version=88b710532e53de2466d1033fb1d5125aabf3215a <69076f8435c1c5dae5f814eaf4c361d1f00b22a3; version=88b710532e53de2466d1033fb1d5125aabf3215a <9683804e36668f6093fb06e202eed2f188ba437e; version=88b710532e53de2466d1033fb1d5125aabf3215a <a3ffce63dcc0c208edd4d196e17baed22ebcb643; version=88b710532e53de2466d1033fb1d5125aabf3215a <c9a0aed51977198df005d0a623090e38e2d77d7b

Published CVSS scores

7.1Amazon LinuxCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-125Out-of-bounds Read

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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