CVE-2024-50162Network attack vector

Kernel crash via missing devmap RX queue

Published Nov 7, 2024 · Updated Aug 5, 2026

A null-pointer dereference in affected Linux kernel releases allows remote attackers to crash systems via incoming network frames. The devmap redirect path leaves xdp_buff.rxq unset before running a BPF_MAP_TYPE_DEVMAP program, so reading ingress_ifindex follows a null device pointer. Exposure requires an XDP devmap redirect configuration whose post-redirect BPF program reads ingress_ifindex; a triggering frame causes a kernel oops and service interruption.

CVSS severity5.5
Medium
EPSS probability0.52%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

A null-pointer dereference in affected Linux kernel releases allows remote attackers to crash systems via incoming network frames. The devmap redirect path leaves xdp_buff.rxq unset before running a BPF_MAP_TYPE_DEVMAP program, so reading ingress_ifindex follows a null device pointer. Exposure requires an XDP devmap redirect configuration whose post-redirect BPF program reads ingress_ifindex; a triggering frame causes a kernel oops and service interruption.

The record

CVE
CVE-2024-50162
Published
Nov 7, 2024
Updated
Aug 5, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
T1499
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Nov 7, 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

Compare your product and version with the public record. A matching version still requires validation against your environment.

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=cb261b594b4108668e00f565184c7c221efe0359 <49454f09936a9a96edfb047156889879cb4001eb
  3. Affected versionversion=cb261b594b4108668e00f565184c7c221efe0359 <9167d1c274a336e4763eeb3f3f9cb763c55df5aa
  4. Affected versionversion=cb261b594b4108668e00f565184c7c221efe0359 <a778fbe087c19f4ece5f5fc14173328f070c3803
  5. Affected versionversion=cb261b594b4108668e00f565184c7c221efe0359 <ca9984c5f0ab3690d98b13937b2485a978c8dd73
  6. Affected versionversion=cb261b594b4108668e00f565184c7c221efe0359 <fe068afb868660fe683a8391c6c17ecbe2254922

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=5.14; version=cb261b594b4108668e00f565184c7c221efe0359 <49454f09936a9a96edfb047156889879cb4001eb; version=cb261b594b4108668e00f565184c7c221efe0359 <9167d1c274a336e4763eeb3f3f9cb763c55df5aa; version=cb261b594b4108668e00f565184c7c221efe0359 <a778fbe087c19f4ece5f5fc14173328f070c3803; version=cb261b594b4108668e00f565184c7c221efe0359 <ca9984c5f0ab3690d98b13937b2485a978c8dd73; version=cb261b594b4108668e00f565184c7c221efe0359 <fe068afb868660fe683a8391c6c17ecbe2254922

Published CVSS scores

5.5NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
4.4OracleCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
5.5Amazon LinuxCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/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)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1499Endpoint Denial of Service

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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