CVE-2026-53007

Local system crash via stale transmit-time flag

Published Jun 24, 2026 · Updated Jun 24, 2026

NULL pointer dereference in Linux Kernel 6.18 through 7.0.9 allows local users to crash the system through an ICE ring resize failure. The ice_set_ringparam() error path nulls a temporary transmit ring's tstamp_ring pointer but leaves ICE_TX_RING_FLAGS_TXTIME set, so cleanup dereferences tstamp_ring->desc after ice_setup_tx_ring() fails. Reachability requires local low-privileged access, the ICE driver's transmit-time flag, and a ring setup failure; no confidentiality or integrity impact is reported.

CVSS severity5.5
Medium
EPSS probability0.11%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

NULL pointer dereference in Linux Kernel 6.18 through 7.0.9 allows local users to crash the system through an ICE ring resize failure. The ice_set_ringparam() error path nulls a temporary transmit ring's tstamp_ring pointer but leaves ICE_TX_RING_FLAGS_TXTIME set, so cleanup dereferences tstamp_ring->desc after ice_setup_tx_ring() fails. Reachability requires local low-privileged access, the ICE driver's transmit-time flag, and a ring setup failure; no confidentiality or integrity impact is reported.

The record

CVE
CVE-2026-53007
Published
Jun 24, 2026
Updated
Jun 24, 2026
Vendor
The Linux Kernel Organization
Product
Linux Kernel
Classifications
CWE-476, T1499.004
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 24, 2026CVE publishedPublication date reported by the CVE source.
  2. Jun 24, 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=6.18
  2. Affected versionversion=ccde82e909467abdf098a8ee6f63e1ecf9a47ce5 <c54e3c270384829336b2526033d44ce1aa6dc67c
  3. Affected versionversion=ccde82e909467abdf098a8ee6f63e1ecf9a47ce5 <fa28351f970fa5138c7c5dedfe5dea480a0ee065

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linux Kernelversion=6.18; version=ccde82e909467abdf098a8ee6f63e1ecf9a47ce5 <c54e3c270384829336b2526033d44ce1aa6dc67c; version=ccde82e909467abdf098a8ee6f63e1ecf9a47ce5 <fa28351f970fa5138c7c5dedfe5dea480a0ee065

Published CVSS scores

5.5NIST National Vulnerability DatabaseCVSS: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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

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-476NULL Pointer Dereference
T1499.004Application or System Exploitation

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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