PHP: PHP: Denial of Service via improper handling of signed characters in ctype functions

A flaw was found in PHP. Some functions, including urldecode, incorrectly pass signed characters to character type ctype functions. On certain systems, this can lead to accessing memory with a negative offset. This vulnerability can be exploited by an attacker to trigger a denial of service DoS,...

PHP: PHP: Denial of Service via improper handling of signed characters in ctype functions

A flaw was found in PHP. Some functions, including urldecode, incorrectly pass signed characters to character type ctype functions. On certain systems, this can lead to accessing memory with a negative offset. This vulnerability can be exploited by an attacker to trigger a denial of service DoS,...

PHP: PHP: Denial of Service via improper handling of signed characters in ctype functions

A flaw was found in PHP. Some functions, including urldecode, incorrectly pass signed characters to character type ctype functions. On certain systems, this can lead to accessing memory with a negative offset. This vulnerability can be exploited by an attacker to trigger a denial of service DoS,...

PHP: PHP: Denial of Service via improper handling of signed characters in ctype functions

A flaw was found in PHP. Some functions, including urldecode, incorrectly pass signed characters to character type ctype functions. On certain systems, this can lead to accessing memory with a negative offset. This vulnerability can be exploited by an attacker to trigger a denial of service DoS,...

PHP: PHP: Denial of Service via improper handling of signed characters in ctype functions

A flaw was found in PHP. Some functions, including urldecode, incorrectly pass signed characters to character type ctype functions. On certain systems, this can lead to accessing memory with a negative offset. This vulnerability can be exploited by an attacker to trigger a denial of service DoS,...

PHP: PHP: Denial of Service via improper handling of signed characters in ctype functions

A flaw was found in PHP. Some functions, including urldecode, incorrectly pass signed characters to character type ctype functions. On certain systems, this can lead to accessing memory with a negative offset. This vulnerability can be exploited by an attacker to trigger a denial of service DoS,...

PHP: PHP: Denial of Service via improper handling of signed characters in ctype functions

A flaw was found in PHP. Some functions, including urldecode, incorrectly pass signed characters to character type ctype functions. On certain systems, this can lead to accessing memory with a negative offset. This vulnerability can be exploited by an attacker to trigger a denial of service DoS,...

PHP: PHP: Denial of Service via improper handling of signed characters in ctype functions

A flaw was found in PHP. Some functions, including urldecode, incorrectly pass signed characters to character type ctype functions. On certain systems, this can lead to accessing memory with a negative offset. This vulnerability can be exploited by an attacker to trigger a denial of service DoS,...

freerdp: FreeRDP global-buffer-overflow

A global buffer overflow flaw has been discovered in FreeRDP. This global-buffer-overflow was observed in FreeRDP's Base64 decoding path. The root cause appears to be implementation-defined char signedness: on Arm/AArch64 builds, plain char is treated as unsigned, so the guard c = 0 can be...

CVE-2026-22858

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.20.1, global-buffer-overflow was observed in FreeRDP's Base64 decoding path. The root cause appears to be implementation-defined char signedness: on Arm/AArch64 builds, plain char is treated as unsigned, so the guard c = ...