CVE-2024-53209

Kernel crash via stale receive-buffer configuration

Published Dec 27, 2024 · Updated Aug 5, 2026

Memory corruption in the Linux bnxt_en driver allows local users to crash the kernel after XDP attachment and an MTU change. bnxt_change_mtu() fails to rerun bnxt_set_rx_skb_mode(), leaving aggregation-ring and receive-handler settings stale so hardware can DMA packets larger than the allocated buffer. Triggering the fault requires a bnxt_en network device, XDP multi-buffer attachment, and a later MTU change; the documented consequence is memory corruption and a kernel crash.

CVSS severity9.8
Critical
EPSS probability0.62%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Memory corruption in the Linux bnxt_en driver allows local users to crash the kernel after XDP attachment and an MTU change. bnxt_change_mtu() fails to rerun bnxt_set_rx_skb_mode(), leaving aggregation-ring and receive-handler settings stale so hardware can DMA packets larger than the allocated buffer. Triggering the fault requires a bnxt_en network device, XDP multi-buffer attachment, and a later MTU change; the documented consequence is memory corruption and a kernel crash.

The record

CVE
CVE-2024-53209
Published
Dec 27, 2024
Updated
Aug 5, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
T1499
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Dec 27, 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=08450ea98ae98d5a35145b675b76db616046ea11 <3051a77a09dfe3022aa012071346937fdf059033
  2. Affected versionversion=08450ea98ae98d5a35145b675b76db616046ea11 <7f306c651feab2f3689185f60b94e72b573255db
  3. Affected versionversion=08450ea98ae98d5a35145b675b76db616046ea11 <84353386762a0a16dd444ead76c012e167d89b41
  4. Affected versionversion=08450ea98ae98d5a35145b675b76db616046ea11 <bf54a7660fc8d2166f41ff1d67a643b15d8b2250
  5. Affected versionversion=421e02bda0570eeb11636544fe97ec3097d1bb92 <b7fd784d7c6a1bd927a23e0d06f09a776ee3889b
  6. Affected versionversion=6.1.45 <6.1.140
  7. Affected versionversion=6.4.10 <6.5
  8. Affected versionversion=6.5
  9. Affected versionversion=893096a7e5fd61cb666b4ead2fa69324e1f2aade

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=08450ea98ae98d5a35145b675b76db616046ea11 <3051a77a09dfe3022aa012071346937fdf059033; version=08450ea98ae98d5a35145b675b76db616046ea11 <7f306c651feab2f3689185f60b94e72b573255db; version=08450ea98ae98d5a35145b675b76db616046ea11 <84353386762a0a16dd444ead76c012e167d89b41; version=08450ea98ae98d5a35145b675b76db616046ea11 <bf54a7660fc8d2166f41ff1d67a643b15d8b2250; version=421e02bda0570eeb11636544fe97ec3097d1bb92 <b7fd784d7c6a1bd927a23e0d06f09a776ee3889b; version=6.1.45 <6.1.140; version=6.4.10 <6.5; version=6.5; version=893096a7e5fd61cb666b4ead2fa69324e1f2aade

Published CVSS scores

9.8Linux kernel CNACVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
5.5Canonical UbuntuCVSS: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 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

T1499Endpoint Denial of Service

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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