CVE-2022-43549Network attack vector

Unauthenticated access to Backup Appliance

Published Dec 5, 2022 · Updated Apr 24, 2025

Improper authentication in Veeam Backup for Google Cloud 1.0 and 3.0 allows remote attackers to bypass Backup Appliance authentication. The vendor identifies the Backup Appliance component but has not disclosed the affected authentication path or input-handling error. The disclosed gate is no prior authentication; the vendor has not specified which appliance operations become available after bypass.

CVSS severity9.8
Critical
EPSS probability0.74%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper authentication in Veeam Backup for Google Cloud 1.0 and 3.0 allows remote attackers to bypass Backup Appliance authentication. The vendor identifies the Backup Appliance component but has not disclosed the affected authentication path or input-handling error. The disclosed gate is no prior authentication; the vendor has not specified which appliance operations become available after bypass.

The record

CVE
CVE-2022-43549
Published
Dec 5, 2022
Updated
Apr 24, 2025
Vendor
Veeam Software
Product
Veeam Backup for Google Cloud
Classifications
CWE-287, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 5, 2022CVE publishedPublication date reported by the CVE source.
  2. Apr 24, 2025Record 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=1.0, 3.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Veeam Software · Veeam Backup for Google Cloudversion=1.0, 3.0

Published CVSS scores

9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.8CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/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)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-287Improper Authentication
T1190Exploit Public-Facing Application

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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