CVE-2024-11237Public exploit

Router restart via oversized DHCP hostname option

Published Nov 15, 2024 · Updated Nov 15, 2024

Stack-based buffer overflow in TP-Link VN020-F3v(T) TT_V6.2.1021 allows remote attackers to restart the router via DHCP DISCOVER. The parser copies a 127-byte hostname option into a reported 64-byte stack buffer without enforcing the destination bound. An unauthenticated attacker on the local broadcast network can interrupt DHCP and router connectivity; arbitrary code execution is unconfirmed.

CVSS severity8.7
High
EPSS probability5.33%
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 TP-Link VN020-F3v(T) TT_V6.2.1021 allows remote attackers to restart the router via DHCP DISCOVER. The parser copies a 127-byte hostname option into a reported 64-byte stack buffer without enforcing the destination bound. An unauthenticated attacker on the local broadcast network can interrupt DHCP and router connectivity; arbitrary code execution is unconfirmed.

The record

CVE
CVE-2024-11237
Published
Nov 15, 2024
Updated
Nov 15, 2024
Vendor
TP-Link
Product
TP-Link VN020-F3v Firmware
Classifications
CWE-787, CWE-121, CWE-119, T1499
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. Nov 15, 2024CVE publishedPublication date reported by the CVE source.
  2. Nov 15, 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=tt_v6.2.1021

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesunauthenticated

What is affected?

TP-Link · TP-Link VN020-F3v Firmwareversion=tt_v6.2.1021
TP-Link · VN020-F3vversion=TT_V6.2.1021

Published CVSS scores

7.8VulDBAV:N/AC:L/Au:N/C:N/I:N/A:C
8.7VulDBCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
7.5VulDBCVSS: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)
Vectoradjacent
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-787Out-of-bounds Write
CWE-121Stack-based Buffer Overflow
CWE-119Improper Restriction of Operations within the Bounds of a Memory Buffer
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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