CVE-2024-33211Public exploitNetwork attack vector

Memory corruption via oversized PPPoE password

Published Apr 23, 2024 · Updated Aug 15, 2024

Stack-based buffer overflow in Tenda FH1206 1.2.0.8(8155)_EN allows remote attackers to corrupt memory via an HTTP request. The ip/goform/QuickIndex handler processes an oversized PPPOEPassword value without enforcing the destination stack buffer's bounds. No authentication or user interaction is required; public evidence supports limited confidentiality, integrity, and availability impact but not code execution.

CVSS severity7.3
High
EPSS probability0.43%
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 Tenda FH1206 1.2.0.8(8155)_EN allows remote attackers to corrupt memory via an HTTP request. The ip/goform/QuickIndex handler processes an oversized PPPOEPassword value without enforcing the destination stack buffer's bounds. No authentication or user interaction is required; public evidence supports limited confidentiality, integrity, and availability impact but not code execution.

The record

CVE
CVE-2024-33211
Published
Apr 23, 2024
Updated
Aug 15, 2024
Vendor
Shenzhen Tenda Technology Co., Ltd.
Product
FH1206
Classifications
CWE-121, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 23, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 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?

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  1. Affected versionversion=-

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Shenzhen Tenda Technology Co., Ltd. · FH1206version=-

Published CVSS scores

7.3CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-121Stack-based Buffer Overflow
T1190Exploit Public-Facing Application

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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