CVE-2024-27572Public exploitNetwork attack vector

Router crash via unchecked ApCliSsid copy

Published Mar 1, 2024 · Updated Aug 2, 2024

Stack overflow in Shenzhen Libituo LBT-T300-T390 firmware 2.2.1.8 allows remote authenticated users to crash the router via HTTP. Within the Rc program's updateCurAPlist function, an ApCliSsid value read through nvram_get is copied by strcpy without bounds checking and then formatted by sprintf into stack buffers. The published request targets /apply.cgi with Basic administrator credentials; overflowing the buffers interrupts router service.

CVSS severity7.5
High
EPSS probability0.72%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stack overflow in Shenzhen Libituo LBT-T300-T390 firmware 2.2.1.8 allows remote authenticated users to crash the router via HTTP. Within the Rc program's updateCurAPlist function, an ApCliSsid value read through nvram_get is copied by strcpy without bounds checking and then formatted by sprintf into stack buffers. The published request targets /apply.cgi with Basic administrator credentials; overflowing the buffers interrupts router service.

The record

CVE
CVE-2024-27572
Published
Mar 1, 2024
Updated
Aug 2, 2024
Vendor
Shenzhen Libituo Technology Co., Ltd.
Product
LBT-T300-T390 Firmware
Classifications
CWE-120, T1499
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Mar 1, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 2, 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=2.2.1.8

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Shenzhen Libituo Technology Co., Ltd. · LBT-T300-T390 Firmwareversion=2.2.1.8

Published CVSS scores

7.5CISA ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/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)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-120Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
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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