CVE-2026-48754Public exploitNetwork attack vectorHinoki check available

Authenticated daemon crash via malformed backup metadata

Published Aug 21, 2026 · Updated Aug 21, 2026

NULL pointer dereference in Incus before 7.1.0 allows remote authenticated users to crash incusd through a crafted instance backup. createDependentVolumesFromBackup dereferences nil VolumeSnapshots entries and omitted Volume or Pool fields from dependent_volumes metadata. Any user with can_create_instances permission in a project can terminate the daemon, interrupting container, virtual-machine, and storage operations on that host.

CVSS severityUnavailable
Unscored
EPSS probability0.23%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

NULL pointer dereference in Incus before 7.1.0 allows remote authenticated users to crash incusd through a crafted instance backup. createDependentVolumesFromBackup dereferences nil VolumeSnapshots entries and omitted Volume or Pool fields from dependent_volumes metadata. Any user with can_create_instances permission in a project can terminate the daemon, interrupting container, virtual-machine, and storage operations on that host.

The record

CVE
CVE-2026-48754
Published
Aug 21, 2026
Updated
Aug 21, 2026
Vendor
Linux Containers
Product
Incus
Classifications
CWE-476, T1499
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 21, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 21, 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=< 7.1.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Linux Containers · Incusversion=< 7.1.0

Published CVSS scores

2.1GitHub CNACVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P

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)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-476NULL Pointer Dereference
T1499Endpoint Denial of Service

Public exploit references

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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