CVE-2022-30320

Authentication bypass via CRC-16 credential collisions

Published Jul 28, 2022 · Updated Aug 3, 2024

Broken credential hashing in Honeywell Saia Burgess PG5 PCD products through 2022-05-06 allows attackers to bypass S-Bus authentication. S-Bus authentication accepts a CRC-16 password hash in a write byte message, so an observed hash yields trivial collisions without revealing the password. Passive access to UDP port 5050 traffic is required; successful bypass exposes sensitive control-logic transfer and controller-configuration functions.

CVSS severity4.3
Medium
EPSS probability0.26%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Broken credential hashing in Honeywell Saia Burgess PG5 PCD products through 2022-05-06 allows attackers to bypass S-Bus authentication. S-Bus authentication accepts a CRC-16 password hash in a write byte message, so an observed hash yields trivial collisions without revealing the password. Passive access to UDP port 5050 traffic is required; successful bypass exposes sensitive control-logic transfer and controller-configuration functions.

The record

CVE
CVE-2022-30320
Published
Jul 28, 2022
Updated
Aug 3, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-327, T1040
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 28, 2022CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 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?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

4.3NIST NVDCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/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)
Vectoradjacent
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-327Use of a Broken or Risky Cryptographic Algorithm
T1040Network Sniffing

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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