VDB-14685 · CVE-1999-1237 · XFDB 2272

Apache HTTP Server smbvalid/smbval apache::authensmb memory corruption

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
9.5	$0-$5k	0.00

Summaryinfo

A vulnerability classified as critical has been found in Apache HTTP Server. Affected by this vulnerability is the function apache::authensmb of the component smbvalid/smbval. Performing a manipulation results in memory corruption. This vulnerability is known as CVE-1999-1237. Remote exploitation of the attack is possible. No exploit is available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in Apache HTTP Server (Web Server) (version now known). It has been classified as very critical. This affects the function apache::authensmb of the component smbvalid/smbval. The manipulation with an unknown input leads to a memory corruption vulnerability. CWE is classifying the issue as 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. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

Multiple buffer overflows in smbvalid/smbval SMB authentication library, as used in Apache::AuthenSmb and possibly other modules, allows remote attackers to execute arbitrary commands via (1) a long username, (2) a long password, and (3) other unspecified methods.

The weakness was published 06/06/1999 as not defined posting (Bugtraq). The advisory is shared at securityfocus.com. This vulnerability is uniquely identified as CVE-1999-1237. 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 are known, but no exploit is available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 04/19/2026).

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at X-Force (2272). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Type

Web Server

Vendor

Apache

Name

HTTP Server

License

open-source

Website

Vendor: https://www.apache.org/

CPE 2.3info

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CPE 2.2info

🔍

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 10.0
VulDB Meta Temp Score: 9.5

VulDB Base Score: 10.0
VulDB Temp Score: 9.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AV	AC	Au	C	I	A
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💳	💳	💳	💳	💳	💳
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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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: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

06/06/1999 🔍
06/06/1999 +0 days 🔍
06/20/2014 +5493 days 🔍
04/19/2026 +4321 days 🔍

Sourcesinfo

Vendor: apache.org

Advisory: securityfocus.com⛔
Status: Confirmed

CVE: CVE-1999-1237 (🔍)
GCVE (CVE): GCVE-0-1999-1237
GCVE (VulDB): GCVE-100-14685
X-Force: 2272 - Smbvalid library contains several possibly exploitable buffer overflows

Entryinfo

Created: 06/21/2014 00:53
Updated: 04/19/2026 04:34
Changes: 06/21/2014 00:53 (40), 04/16/2019 15:11 (12), 04/19/2026 04:34 (17)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.