CVE-2024-28052Public exploitNetwork attack vector

Service interruption via oversized HTTP POST URI

Published Oct 30, 2024 · Updated Oct 30, 2024

Buffer overflow in the LevelOne WBR-6012 web application R0.40e6 allows remote attackers to reboot the router via a crafted HTTP POST URI. Its HTTP receive routine allocates a 0x5BC-byte buffer and copies an equally long request into it without correctly handling POST paths outside the upg and upn branches. No authentication is required; the resulting crash interrupts routing service and exposes a separate backdoor account during startup.

CVSS severity5.3
Medium
EPSS probability0.70%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Buffer overflow in the LevelOne WBR-6012 web application R0.40e6 allows remote attackers to reboot the router via a crafted HTTP POST URI. Its HTTP receive routine allocates a 0x5BC-byte buffer and copies an equally long request into it without correctly handling POST paths outside the upg and upn branches. No authentication is required; the resulting crash interrupts routing service and exposes a separate backdoor account during startup.

The record

CVE
CVE-2024-28052
Published
Oct 30, 2024
Updated
Oct 30, 2024
Vendor
LevelOne
Product
WBR-6012
Classifications
CWE-131, T1499.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 30, 2024CVE publishedPublication date reported by the CVE source.
  2. Oct 30, 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=R0.40e6

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

LevelOne · WBR-6012version=R0.40e6

Published CVSS scores

5.3Cisco TalosCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
7.5NIST NVDCVSS: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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-131Incorrect Calculation of Buffer Size
T1499.004Application or System Exploitation

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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