CVE-2024-5477

Physical code execution and privilege escalation

Published Aug 13, 2025 · Updated Aug 13, 2025

Improper firmware-update restriction in HP System BIOS allows physically proximate attackers to execute code or disclose information. HP identifies the weakness as improper restriction of software and firmware updates but has not published the affected interface or its incorrect operation. Exploitation requires physical access, specialized equipment and knowledge, high complexity, and a present attack condition; successful attacks can also escalate privileges or interrupt the system.

CVSS severity7.3
High
EPSS probability0.17%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper firmware-update restriction in HP System BIOS allows physically proximate attackers to execute code or disclose information. HP identifies the weakness as improper restriction of software and firmware updates but has not published the affected interface or its incorrect operation. Exploitation requires physical access, specialized equipment and knowledge, high complexity, and a present attack condition; successful attacks can also escalate privileges or interrupt the system.

The record

CVE
CVE-2024-5477
Published
Aug 13, 2025
Updated
Aug 13, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-1256
Attack vector
physical
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 13, 2025CVE publishedPublication date reported by the CVE source.
  2. Aug 13, 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 vectorphysical
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

7.3HP Inc.CVSS:4.0/AV:P/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA: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)
Vectorphysical
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-1256Improper Restriction of Software Interfaces to Hardware Features

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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