An issue was discovered in Aprelium Abyss Web Server X1 2.12.1 and 2.14. A crafted HTTP request can lead to an out-of-bounds read that crashes the application.

CRLF injection vulnerability in Aprelium Abyss Web Server 1.1.2 and earlier allows remote attackers to inject arbitrary HTTP headers and possibly conduct HTTP Response Splitting attacks via CRLF sequences in the Location header.

Aprelium Technologies Abyss Web Server 1.1.2, and possibly other versions before 1.1.4, allows remote attackers to cause a denial of service (crash) via an HTTP GET message with empty (1) Connection or (2) Range fields.

Heap-based buffer overflow in Aprelium Abyss Web Server 1.1.2 and earlier allows remote attackers to execute arbitrary code via a long HTTP GET request.

The remote web management interface of Aprelium Technologies Abyss Web Server 1.1.2 and earlier does not log connection attempts to the web management port (9999), which allows remote attackers to mount brute force attacks on the administration console without detection.

The Administration console for Abyss Web Server 1.0.3 before Patch 2 allows remote attackers to gain privileges and modify server configuration via direct requests to CHL files such as (1) srvstatus.chl, (2) consport.chl, (3) general.chl, (4) srvparam.chl, and (5) advanced.chl.

Directory traversal vulnerability in Abyss Web Server 1.0.3 allows remote attackers to read arbitrary files via ..\ (dot-dot backslash) sequences in an HTTP GET request.

The Administration console for Abyss Web Server 1.0.3 allows remote attackers to read files without providing login credentials via an HTTP request to a target file that ends in a "+" character.

Abyss Web Server 1.0.3 allows remote attackers to list directory contents via an HTTP GET request that ends in a large number of / (slash) characters.

Aprelium Abyss Web Server (abyssws) before 1.0.3 stores the administrative console password in plaintext in the abyss.conf file, which allows local users with access to the file to gain privileges.