CVE-2026-53235Network attack vector

Remote kernel crash via unchecked GRO pull

Published Jun 25, 2026 · Updated Jun 25, 2026

Denial of service in Linux Kernel allows remote attackers to crash affected systems by sending crafted network traffic. The skb_gro_receive_list() path calls skb_pull() on fragmented receive buffers without first using pskb_may_pull(), making skb length accounting inconsistent and triggering the __skb_pull() BUG_ON. The packet must reach napi_gro_frags() with all data in page fragments and a nonzero GRO offset; the documented impact is a kernel crash without confidentiality or integrity loss.

CVSS severity7.5
High
EPSS probability0.44%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Denial of service in Linux Kernel allows remote attackers to crash affected systems by sending crafted network traffic. The skb_gro_receive_list() path calls skb_pull() on fragmented receive buffers without first using pskb_may_pull(), making skb length accounting inconsistent and triggering the __skb_pull() BUG_ON. The packet must reach napi_gro_frags() with all data in page fragments and a nonzero GRO offset; the documented impact is a kernel crash without confidentiality or integrity loss.

The record

CVE
CVE-2026-53235
Published
Jun 25, 2026
Updated
Jun 25, 2026
Vendor
The Linux Kernel Organization
Product
Linux Kernel
Classifications
T1499.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 25, 2026CVE publishedPublication date reported by the CVE source.
  2. Jun 25, 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=6.10
  2. Affected versionversion=8d95dc474f85481652a0e422d2f1f079de81f63c <0cde3a004119db637b401c54e77536e4145fc0b4
  3. Affected versionversion=8d95dc474f85481652a0e422d2f1f079de81f63c <848571dcbbbea7ba44dd4f7ebe1fbb274afe08ac
  4. Affected versionversion=8d95dc474f85481652a0e422d2f1f079de81f63c <9e636c995b7beeb74ea882968248752821c244c4
  5. Affected versionversion=8d95dc474f85481652a0e422d2f1f079de81f63c <f2bb3434544454099a5b6dec213567267b05d79d

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

The Linux Kernel Organization · Linux Kernelversion=6.10; version=8d95dc474f85481652a0e422d2f1f079de81f63c <0cde3a004119db637b401c54e77536e4145fc0b4; version=8d95dc474f85481652a0e422d2f1f079de81f63c <848571dcbbbea7ba44dd4f7ebe1fbb274afe08ac; version=8d95dc474f85481652a0e422d2f1f079de81f63c <9e636c995b7beeb74ea882968248752821c244c4; version=8d95dc474f85481652a0e422d2f1f079de81f63c <f2bb3434544454099a5b6dec213567267b05d79d

Published CVSS scores

7.5kernel.orgCVSS:3.1/AV:N/AC:L/PR:N/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

T1499.004Application or System Exploitation

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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