CVE-2024-27570Public exploitNetwork attack vector

Service crash via unchecked ApCliSsid copy

Published Mar 1, 2024 · Updated Mar 14, 2025

Stack-based buffer overflow in LBT T300-T390 firmware 2.2.1.8 allows remote attackers to crash the router via a crafted POST request. The generate_conf_router function passes the nvram_get value for ApCliSsid directly to strcpy, overflowing a 290-byte stack buffer. The published request targets /apply.cgi and includes Basic authentication; only router availability is reported to be affected.

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-based buffer overflow in LBT T300-T390 firmware 2.2.1.8 allows remote attackers to crash the router via a crafted POST request. The generate_conf_router function passes the nvram_get value for ApCliSsid directly to strcpy, overflowing a 290-byte stack buffer. The published request targets /apply.cgi and includes Basic authentication; only router availability is reported to be affected.

The record

CVE
CVE-2024-27570
Published
Mar 1, 2024
Updated
Mar 14, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-121, CWE-787, T1499
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 1, 2024CVE publishedPublication date reported by the CVE source.
  2. Mar 14, 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?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
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.

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)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-121Stack-based Buffer Overflow
CWE-787Out-of-bounds Write
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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