CVE-2022-45956Public exploitNetwork attack vector

Unauthenticated authorization bypass via HEAD requests

Published Dec 12, 2022 · Updated Apr 22, 2025

Incorrect authorization in Boa Web Server 0.94.13 through 0.94.14 allows remote attackers to bypass Basic Authorization using HEAD requests. The request parser assigns HEAD to M_HEAD, and affected response paths pass that method without enforcing the Basic Authorization constraint. No credentials or user interaction are required, but public sources do not identify the protected operation or data exposed by the bypass.

CVSS severity5.3
Medium
EPSS probability0.81%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Incorrect authorization in Boa Web Server 0.94.13 through 0.94.14 allows remote attackers to bypass Basic Authorization using HEAD requests. The request parser assigns HEAD to M_HEAD, and affected response paths pass that method without enforcing the Basic Authorization constraint. No credentials or user interaction are required, but public sources do not identify the protected operation or data exposed by the bypass.

The record

CVE
CVE-2022-45956
Published
Dec 12, 2022
Updated
Apr 22, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-863, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 12, 2022CVE publishedPublication date reported by the CVE source.
  2. Apr 22, 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?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

5.3CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
5.3NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/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.

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

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-863Incorrect Authorization
T1190Exploit Public-Facing Application

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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