CVE-2022-0485Public exploitNetwork attack vector

Image corruption via unchecked asynchronous completion errors

Published Aug 29, 2022 · Updated Aug 2, 2024

Unchecked return values in Red Hat libnbd before 1.11.8 allow remote attackers to corrupt destination images during nbdcopy operations. Multi-threaded completion callbacks treat failed asynchronous NBD reads or writes as successful, writing garbage or omitting destination data while returning success. Exploitation requires an NBD server to return an error during the default asynchronous copy mode; resulting images can silently lose integrity.

CVSS severity4.8
Medium
EPSS probability0.97%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Unchecked return values in Red Hat libnbd before 1.11.8 allow remote attackers to corrupt destination images during nbdcopy operations. Multi-threaded completion callbacks treat failed asynchronous NBD reads or writes as successful, writing garbage or omitting destination data while returning success. Exploitation requires an NBD server to return an error during the default asynchronous copy mode; resulting images can silently lose integrity.

The record

CVE
CVE-2022-0485
Published
Aug 29, 2022
Updated
Aug 2, 2024
Vendor
Red Hat
Product
libnbd
Classifications
CWE-252
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 29, 2022CVE publishedPublication date reported by the CVE source.
  2. Aug 2, 2024Record 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=Fixed in libnbd v1.11.8

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Red Hat · libnbdversion=Fixed in libnbd v1.11.8

Published CVSS scores

4.8NIST NVDCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N

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 exploitPublished

Weakness, pattern, technique

CWE-252Unchecked Return Value

Public exploit references

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Technologies

Your stack

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Your stack

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