CVE-2025-15460Public exploitNetwork attack vector

Authenticated code execution via unchecked EncryptionMode copy

Published Jan 5, 2026 · Updated Jan 5, 2026

Buffer overflow in the PPTP client handler in Shanghai Aitai UTT 进取 520W 1.7.7-180627 allows remote authenticated users to execute code. The /goform/formPptpClientConfig handler passes the unbounded EncryptionMode request value to strcpy, overwriting memory beyond its destination buffer. Valid management credentials and network access to the HTTP interface are required; exploitation can execute code or crash the router.

CVSS severity8.8
High
EPSS probability0.62%
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 PPTP client handler in Shanghai Aitai UTT 进取 520W 1.7.7-180627 allows remote authenticated users to execute code. The /goform/formPptpClientConfig handler passes the unbounded EncryptionMode request value to strcpy, overwriting memory beyond its destination buffer. Valid management credentials and network access to the HTTP interface are required; exploitation can execute code or crash the router.

The record

CVE
CVE-2025-15460
Published
Jan 5, 2026
Updated
Jan 5, 2026
Vendor
Shanghai Aitai Technology Co., Ltd.
Product
进取 520W
Classifications
CWE-119, CWE-120, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jan 5, 2026CVE publishedPublication date reported by the CVE source.
  2. Jan 5, 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=1.7.7-180627

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Shanghai Aitai Technology Co., Ltd. · 进取 520Wversion=1.7.7-180627

Published CVSS scores

7.4VulDB CNACVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P
9.0VulDB CNAAV:N/AC:L/Au:S/C:C/I:C/A:C
8.8VulDB CNACVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-119Improper Restriction of Operations within the Bounds of a Memory Buffer
CWE-120Buffer Copy without Checking Size of Input ('Classic 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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