CVE-2026-2017Public exploitNetwork attack vector

Unauthenticated memory corruption via unbounded sprintf copy

Published Feb 6, 2026 · Updated Feb 6, 2026

Stack-based buffer overflow in IP-COM W30AP firmware 1.0.0.11(1340) and earlier allows remote attackers to corrupt device memory. In formWx3AuthorizeSet, the unauthenticated /goform/wx3auth handler uses sprintf to place an unbounded data value into a fixed-size stack buffer. Network access to the management interface and an extend value of pc are sufficient; the public proof of concept delivers an oversized request but does not demonstrate code execution.

CVSS severity9.8
Critical
EPSS probability4.50%
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 IP-COM W30AP firmware 1.0.0.11(1340) and earlier allows remote attackers to corrupt device memory. In formWx3AuthorizeSet, the unauthenticated /goform/wx3auth handler uses sprintf to place an unbounded data value into a fixed-size stack buffer. Network access to the management interface and an extend value of pc are sufficient; the public proof of concept delivers an oversized request but does not demonstrate code execution.

The record

CVE
CVE-2026-2017
Published
Feb 6, 2026
Updated
Feb 6, 2026
Vendor
IP-COM Networks Co., Ltd.
Product
W30AP
Classifications
CWE-119, CWE-121, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 6, 2026CVE publishedPublication date reported by the CVE source.
  2. Feb 6, 2026Record 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=1.0.0.11(1340)

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

IP-COM Networks Co., Ltd. · W30APversion=1.0.0.11(1340)

Published CVSS scores

10.0VulDBAV:N/AC:L/Au:N/C:C/I:C/A:C
9.8VulDBCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
8.9VulDBCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P

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-119Improper Restriction of Operations within the Bounds of a Memory Buffer
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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