CVE-2025-63674Public exploit

Root code execution via forgeable SD updates

Published Nov 24, 2025 · Updated Jul 5, 2026

Improper update validation in Blurams Lumi Security Camera A31C 23.1227.472.2926 allows physically proximate attackers to execute code. The U-Boot SD auto-upgrade path accepts a forged f1r03_SD_UPDATA.enc image protected only by reversible XOR encoding and attacker-computable CRCs, then erases and rewrites SPI-flash partitions. Physical access to insert the card and power-cycle the camera is required; a modified SquashFS boot script executes a bind shell as root.

CVSS severity6.1
Medium
EPSS probability0.29%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper update validation in Blurams Lumi Security Camera A31C 23.1227.472.2926 allows physically proximate attackers to execute code. The U-Boot SD auto-upgrade path accepts a forged f1r03_SD_UPDATA.enc image protected only by reversible XOR encoding and attacker-computable CRCs, then erases and rewrites SPI-flash partitions. Physical access to insert the card and power-cycle the camera is required; a modified SquashFS boot script executes a bind shell as root.

The record

CVE
CVE-2025-63674
Published
Nov 24, 2025
Updated
Jul 5, 2026
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-77, T1200
Attack vector
physical
Privileges
unauthenticated

Timeline

How it unfolded

  1. Nov 24, 2025CVE publishedPublication date reported by the CVE source.
  2. Jul 5, 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?

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

6.1CISA-ADPCVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/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)
Vectorphysical
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-77Improper Neutralization of Special Elements used in a Command ('Command Injection')
T1200Hardware Additions

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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