CVE-2025-14535Public exploitNetwork attack vector

Router crash via unchecked SSID copy

Published Dec 11, 2025 · Updated Dec 11, 2025

Buffer overflow in UTT 进取 512W 3.1.7.7-171114 allows remote authenticated users to crash the router via a crafted SSID. The formConfigFastDirectionW handler passes the SSID value to strcpy without checking the destination buffer length when wrlessMode is 4. The published proof of concept uses a digest-authenticated administrator request and demonstrates a denial-of-service path; code execution is not established.

CVSS severityUnavailable
Unscored
EPSS probability5.63%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

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Summary

What happened

Buffer overflow in UTT 进取 512W 3.1.7.7-171114 allows remote authenticated users to crash the router via a crafted SSID. The formConfigFastDirectionW handler passes the SSID value to strcpy without checking the destination buffer length when wrlessMode is 4. The published proof of concept uses a digest-authenticated administrator request and demonstrates a denial-of-service path; code execution is not established.

The record

CVE
CVE-2025-14535
Published
Dec 11, 2025
Updated
Dec 11, 2025
Vendor
Shanghai Aitai Technology Co., Ltd.
Product
进取 512W
Classifications
CWE-120, CWE-119, T1499.004
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Dec 11, 2025CVE publishedPublication date reported by the CVE source.
  2. Dec 11, 2025Record 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=3.1.7.7-171114

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Shanghai Aitai Technology Co., Ltd. · 进取 512Wversion=3.1.7.7-171114

Published CVSS scores

9.3VulDB CNACVSS: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
9.8VulDB CNACVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R
9.8VulDB CNACVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R
10.0VulDB CNAAV:N/AC:L/Au:N/C:C/I:C/A:C/E:POC/RL:ND/RC:UR

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)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

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