CVE-2023-47579Network attack vector

Password-hash disclosure via system group misconfiguration

Published Dec 13, 2023 · Updated Aug 28, 2024

Improper access control in Relyum RELY-PCIe Firmware 22.2.1 allows remote attackers to read the operating system password-hash file. A system group is misconfigured so that its members receive read access to the central password-hash file despite the file's sensitivity. Network access without authentication is sufficient; integrity and service availability are not affected.

CVSS severity7.5
High
EPSS probability0.58%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Improper access control in Relyum RELY-PCIe Firmware 22.2.1 allows remote attackers to read the operating system password-hash file. A system group is misconfigured so that its members receive read access to the central password-hash file despite the file's sensitivity. Network access without authentication is sufficient; integrity and service availability are not affected.

The record

CVE
CVE-2023-47579
Published
Dec 13, 2023
Updated
Aug 28, 2024
Vendor
Relyum
Product
RELY-PCIe Firmware
Classifications
CWE-284, T1552.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 13, 2023CVE publishedPublication date reported by the CVE source.
  2. Aug 28, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=22.2.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Relyum · RELY-PCIe Firmwareversion=22.2.1

Published CVSS scores

7.5NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/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.

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-284Improper Access Control
T1552.001Unsecured Credentials: Credentials In Files

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

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo