Linksys E1700 1.0.0.4.003 /goform/QoSSetup ack_policy stack-based overflow

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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8.4$0-$5k0.00

Summaryinfo

A vulnerability was found in Linksys E1700 1.0.0.4.003. It has been declared as critical. This vulnerability affects the function QoSSetup of the file /goform/QoSSetup. Executing a manipulation of the argument ack_policy can lead to stack-based overflow. The identification of this vulnerability is CVE-2025-9527. The attack may be launched remotely. Furthermore, there is an exploit available. The vendor was contacted early about this disclosure but did not respond in any way.

Detailsinfo

A vulnerability classified as critical was found in Linksys E1700 1.0.0.4.003. This vulnerability affects the function QoSSetup of the file /goform/QoSSetup. The manipulation of the argument ack_policy with an unknown input leads to a stack-based overflow vulnerability. The CWE definition for the vulnerability is CWE-121. A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function). As an impact it is known to affect confidentiality, integrity, and availability.

The advisory is shared for download at github.com. This vulnerability was named CVE-2025-9527. The exploitation appears to be easy. The attack can be initiated remotely. Technical details and also a public exploit are known.

It is possible to download the exploit at github.com. It is declared as proof-of-concept. The vendor was contacted early about this disclosure but did not respond in any way.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

Vendor

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Version

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 8.8
VulDB Meta Temp Score: 8.4

VulDB Base Score: 8.8
VulDB Temp Score: 8.0
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 8.8
CNA Vector: 🔒

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Stack-based overflow
CWE: CWE-121 / CWE-119
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Access: Public
Status: Proof-of-Concept
Download: 🔒

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

08/27/2025 Advisory disclosed
08/27/2025 +0 days VulDB entry created
08/29/2025 +2 days VulDB entry last update

Sourcesinfo

Vendor: linksys.com

Advisory: github.com
Status: Not defined

CVE: CVE-2025-9527 (🔒)
GCVE (CVE): GCVE-0-2025-9527
GCVE (VulDB): GCVE-100-321544
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 08/27/2025 07:48
Updated: 08/29/2025 22:35
Changes: 08/27/2025 07:48 (57), 08/27/2025 09:37 (1), 08/29/2025 22:35 (32)
Complete: 🔍
Submitter: Bond_yes
Cache ID: 216::103

Submitinfo

Accepted

  • Submit #634826: Linksys E1700 E1700(1.0.0.4.003) Stack-based Buffer Overflow (by Bond_yes)

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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