Celtech Software ExpressFS 2.6 FTP Server User memory corruption

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.1$0-$5k0.00

Summaryinfo

A vulnerability classified as critical was found in Celtech Software ExpressFS 2.6. This issue affects some unknown processing of the component FTP Server. Executing a manipulation of the argument User can lead to memory corruption. This vulnerability is handled as CVE-1999-1514. There is not any exploit available. The application of restrictive firewalling is recommended.

Detailsinfo

A vulnerability has been found in Celtech Software ExpressFS 2.6 and classified as critical. This vulnerability affects an unknown function of the component FTP Server. The manipulation of the argument USER with an unknown input leads to a memory corruption vulnerability. The CWE definition for the vulnerability is CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

Buffer overflow in Celtech ExpressFS FTP server 2.x allows remote attackers to cause a denial of service, and possibly execute arbitrary commands, via a long USER command.

The weakness was released 11/28/2001 by Martin (Website). The advisory is available at marc.theaimsgroup.com. This vulnerability was named CVE-1999-1514. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Technical details are known, but there is no available exploit.

The commercial vulnerability scanner Qualys is able to test this issue with plugin 27061 (Celtech ExpressFS USER Buffer Overflow Vulnerability).

Proper firewalling of is able to address this issue. Attack attempts may be identified with Snort ID 1734.

The vulnerability is also documented in the databases at X-Force (3401), SecurityFocus (BID 749†) and Vulnerability Center (SBV-746†). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 7.1

VulDB Base Score: 7.3
VulDB Temp Score: 7.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Memory corruption
CWE: CWE-119
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: Firewall
Status: 🔍

0-Day Time: 🔍
Snort ID: 1734
Snort Message: PROTOCOL-FTP USER overflow attempt
Snort Class: 🔍

Suricata ID: 2101734
Suricata Class: 🔍
Suricata Message: 🔍
SourceFire IPS: 🔍

Timelineinfo

10/29/1999 🔍
11/28/2001 +761 days 🔍
11/28/2001 +0 days 🔍
11/28/2001 +0 days 🔍
01/27/2003 +425 days 🔍
07/10/2014 +4182 days 🔍
10/20/2025 +4120 days 🔍

Sourcesinfo

Advisory: marc.theaimsgroup.com
Researcher: Martin
Status: Not defined

CVE: CVE-1999-1514 (🔍)
GCVE (CVE): GCVE-0-1999-1514
GCVE (VulDB): GCVE-100-17626
X-Force: 3401
SecurityFocus: 749 - Celtech ExpressFS USER Buffer Overflow Vulnerability
Vulnerability Center: 746 - Celtech ExpressFS USER Buffer Overflow Vulnerability, Critical

Entryinfo

Created: 07/10/2014 16:30
Updated: 10/20/2025 03:34
Changes: 07/10/2014 16:30 (64), 05/08/2019 14:56 (2), 10/20/2025 03:34 (18)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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