CVE-2025-2811Public exploit

Device denial of service via unauthenticated ReDoS

Published Apr 26, 2025 · Updated Apr 28, 2025

ReDoS in GL.iNet router firmware 4.x allows remote attackers to disrupt affected devices through an unauthenticated RPC request. The ui.load_locales RPC method processes an attacker-controlled locale containing repeated regular-expression metacharacters and enters an infinite loop. Network access to the management interface is sufficient; the request drives CPU use to 100% and impairs normal device operation.

CVSS severity6.9
Medium
EPSS probability0.35%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

ReDoS in GL.iNet router firmware 4.x allows remote attackers to disrupt affected devices through an unauthenticated RPC request. The ui.load_locales RPC method processes an attacker-controlled locale containing repeated regular-expression metacharacters and enters an infinite loop. Network access to the management interface is sufficient; the request drives CPU use to 100% and impairs normal device operation.

The record

CVE
CVE-2025-2811
Published
Apr 26, 2025
Updated
Apr 28, 2025
Vendor
GL.iNet
Product
GL-AX1800 Flint
Classifications
CWE-400, T1499
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 26, 2025CVE publishedPublication date reported by the CVE source.
  2. Apr 28, 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?

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

  1. Affected versionversion=4.x

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesunauthenticated

What is affected?

GL.iNet · GL-AX1800 Flintversion=4.x
GL.iNet · Puli AX (GL-XE3000)version=4.x
GL.iNet · GL-MT3000 Beryl AXversion=4.x
GL.iNet · GL-AR300M Shadowversion=4.x
GL.iNet · GL-B1300 Convexa-Bversion=4.x
GL.iNet · GL-E750V2 Mudiversion=4.x
GL.iNet · GL-A1300 Slate Plusversion=4.x
GL.iNet · GL-MT300N-V2 Mangoversion=4.x
GL.iNet · GL-BE3600 Slate 7version=4.x
GL.iNet · GL-MT6000 Flint 2version=4.x
GL.iNet · GL-AR300M16 Shadowversion=4.x
GL.iNet · GL-SFT1200 Opalversion=4.x
GL.iNet · GL-X300B Collieversion=4.x
GL.iNet · GL-AR750 Cretaversion=4.x
GL.iNet · GL-MT2500 Brume 2version=4.x
GL.iNet · GL-AXT1800 Slate AXversion=4.x
GL.iNet · GL-MT1300 Berylversion=4.x
GL.iNet · Puli (GL-XE300)version=4.x
GL.iNet · Spitz (GL-X750)version=4.x
GL.iNet · GL-AR750S-EXT Slateversion=4.x
GL.iNet · GL-B3000 Marbleversion=4.x
GL.iNet · GL-E750 Mudiversion=4.x
GL.iNet · GL-X3000 Spitz AXversion=4.x

Published CVSS scores

6.9NVDCVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA: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.

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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 exploitPublished

Weakness, pattern, technique

CWE-400Uncontrolled Resource Consumption
T1499Endpoint Denial of Service

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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