CVE-2024-57256

Memory corruption via overflowing symlink allocation

Published Feb 18, 2025 · Updated May 12, 2026

Memory corruption in U-Boot before 2025.01-rc1 and RUGGEDCOM ROX before 2.17.1 allows physically proximate attackers to overwrite memory. ext4fs_read_symlink adds one to an untrusted 32-bit inode size before zalloc, so 0xffffffff wraps to zero and the subsequent symlink read exceeds the allocation. Exploitation requires a crafted ext4 filesystem to reach an ext4-enabled bootloader; arbitrary code execution has not been confirmed.

CVSS severity7.1
High
EPSS probability0.37%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Memory corruption in U-Boot before 2025.01-rc1 and RUGGEDCOM ROX before 2.17.1 allows physically proximate attackers to overwrite memory. ext4fs_read_symlink adds one to an untrusted 32-bit inode size before zalloc, so 0xffffffff wraps to zero and the subsequent symlink read exceeds the allocation. Exploitation requires a crafted ext4 filesystem to reach an ext4-enabled bootloader; arbitrary code execution has not been confirmed.

The record

CVE
CVE-2024-57256
Published
Feb 18, 2025
Updated
May 12, 2026
Vendor
Siemens
Product
RUGGEDCOM ROX RX1500
Classifications
CWE-190, T1200
Attack vector
physical
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 18, 2025CVE publishedPublication date reported by the CVE source.
  2. May 12, 2026Record 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=0 <V2.17.1

What conditions does exploitation require?

Attack vectorphysical
Required privilegesunauthenticated

What is affected?

Siemens · RUGGEDCOM ROX RX1500version=0 <V2.17.1
Siemens · RUGGEDCOM ROX RX5000version=0 <V2.17.1
Siemens · RUGGEDCOM ROX RX1511version=0 <V2.17.1
Siemens · RUGGEDCOM ROX MX5000REversion=0 <V2.17.1
Siemens · RUGGEDCOM ROX RX1536version=0 <V2.17.1
DENX Software Engineering GmbH · U-Bootversion=0 <2025.01-rc1
Siemens · RUGGEDCOM ROX RX1512version=0 <V2.17.1
Siemens · RUGGEDCOM ROX RX1510version=0 <V2.17.1
Siemens · RUGGEDCOM ROX RX1524version=0 <V2.17.1
Siemens · RUGGEDCOM ROX RX1501version=0 <V2.17.1
Siemens · RUGGEDCOM ROX RX1400version=0 <V2.17.1
Siemens · RUGGEDCOM ROX MX5000version=0 <V2.17.1

Published CVSS scores

7.1Siemens ProductCERTCVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:C/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.

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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)
Vectorphysical
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-190Integer Overflow or Wraparound
T1200Hardware Additions

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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