CVE-2024-45263

Router takeover via unrestricted file upload

Published Oct 24, 2024 · Updated Oct 28, 2024

Unrestricted file upload in GL.iNet router firmware allows adjacent remote attackers to gain full router control via /upload. The /upload endpoint accepts files of any type and writes them into /tmp/ovpn_upload without restricting dangerous content. Network adjacency and no authentication are required; takeover follows only when an uploaded malicious file is executed on the affected router.

CVSS severity8.8
High
EPSS probability0.27%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Unrestricted file upload in GL.iNet router firmware allows adjacent remote attackers to gain full router control via /upload. The /upload endpoint accepts files of any type and writes them into /tmp/ovpn_upload without restricting dangerous content. Network adjacency and no authentication are required; takeover follows only when an uploaded malicious file is executed on the affected router.

The record

CVE
CVE-2024-45263
Published
Oct 24, 2024
Updated
Oct 28, 2024
Vendor
GL.iNet
Product
GL.iNet GL-X300B Firmware
Classifications
CWE-434, T1105
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 24, 2024CVE publishedPublication date reported by the CVE source.
  2. Oct 28, 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?

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

  1. Affected versionversion=4.5.17 <4.5.18

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesunauthenticated

What is affected?

GL.iNet · GL.iNet GL-X300B Firmwareversion=4.5.17 <4.5.18
GL.iNet · GL.iNet GL-B3000 Firmwareversion=4.5.18 <4.5.19
GL.iNet · GL.iNet GL-X750 Firmwareversion=4.3.18 <4.3.19
GL.iNet · GL.iNet GL-XE300 Firmwareversion=4.3.17 <4.3.18; version=4.4.9 <4.4.10
GL.iNet · GL.iNet GL-MT6000 Firmwareversion=4.6.2 <4.6.4

Published CVSS scores

8.8CISA-ADPCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectoradjacent
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-434Unrestricted Upload of File with Dangerous Type
T1105Ingress Tool Transfer

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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