Linksys BEFW11S4/BEFSR11/BEFSR41/BEFSRU31 up to 1.43.2 Web Management Interface PASS denial of service

CVSS Meta Temp Score
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CTI Interest Score
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5.1$0-$5k0.00

Summaryinfo

A vulnerability has been found in Linksys BEFW11S4, BEFSR11, BEFSR41 and BEFSRU31 up to 1.43.2 and classified as problematic. This issue affects some unknown processing of the component Web Management Interface. Performing a manipulation of the argument PASS results in denial of service. This vulnerability is known as CVE-2002-1312. No exploit is available. The affected component should be upgraded.

Detailsinfo

A vulnerability, which was classified as problematic, was found in Linksys BEFW11S4, BEFSR11, BEFSR41 and BEFSRU31 up to 1.43.2. This affects an unknown part of the component Web Management Interface. The manipulation of the argument PASS with an unknown input leads to a denial of service vulnerability. CWE is classifying the issue as CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. This is going to have an impact on availability. The summary by CVE is:

Buffer overflow in the Web management interface in Linksys BEFW11S4 wireless access point router 2 and BEFSR11, BEFSR41, and BEFSRU31 EtherFast Cable/DSL routers with firmware before 1.43.3 with remote management enabled allows remote attackers to cause a denial of service (router crash) via a long password.

The weakness was published 11/20/2002 by Alex (Website). It is possible to read the advisory at archives.neohapsis.com. This vulnerability is uniquely identified as CVE-2002-1312 since 11/18/2002. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details of the vulnerability are known, but there is no available exploit.

The commercial vulnerability scanner Qualys is able to test this issue with plugin 43027 (Linksys Devices GET Request Buffer Overflow Vulnerability).

Upgrading to version 1.43.3 eliminates this vulnerability.

The vulnerability is also documented in the databases at X-Force (10654) and SecurityFocus (BID 6208†). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.1

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Denial of service
CWE: CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: BEFW11S4/BEFSR11/BEFSR41/BEFSRU31 1.43.3

Timelineinfo

11/18/2002 🔍
11/20/2002 +2 days 🔍
11/20/2002 +0 days 🔍
11/20/2002 +0 days 🔍
07/31/2014 +4271 days 🔍
09/06/2025 +4055 days 🔍

Sourcesinfo

Vendor: linksys.com

Advisory: archives.neohapsis.com
Researcher: Alex
Status: Confirmed

CVE: CVE-2002-1312 (🔍)
GCVE (CVE): GCVE-0-2002-1312
GCVE (VulDB): GCVE-100-19155
X-Force: 10654 - Linksys EtherFast long password denial of service
SecurityFocus: 6208 - Multiple Linksys Devices Password Field Buffer Overflow Vulnerability

Entryinfo

Created: 07/31/2014 16:16
Updated: 09/06/2025 23:41
Changes: 07/31/2014 16:16 (56), 04/19/2019 10:25 (1), 09/06/2025 23:41 (20)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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