EUVD-2026-5685

A security vulnerability has been detected in happyfish100 libfastcommon up to 1.0.84. Affected by this vulnerability is the function base64decode of the file src/base64.c. The manipulation leads to stack-based buffer overflow. Local access is required to approach this attack. The exploit has bee...

CVE-2026-2016 happyfish100 libfastcommon base64.c base64_decode stack-based overflow

A security vulnerability has been detected in happyfish100 libfastcommon up to 1.0.84. Affected by this vulnerability is the function base64decode of the file src/base64.c. The manipulation leads to stack-based buffer overflow. Local access is required to approach this attack. The exploit has bee...

CVE-2026-2016 happyfish100 libfastcommon base64.c base64_decode stack-based overflow

A security vulnerability has been detected in happyfish100 libfastcommon up to 1.0.84. Affected by this vulnerability is the function base64decode of the file src/base64.c. The manipulation leads to stack-based buffer overflow. Local access is required to approach this attack. The exploit has bee...

CVE-2026-2016

CVE-2026-2016 affects happyfish100 libfastcommon up to version 1.0.84. The vulnerability is in the base64_decode function in src/base64.c, causing a stack-based buffer overflow. Local access is required to exploit. Public disclosure of the exploit is noted. The patch identifier is 82f66af3e252e3e...

PT-2026-6717

Name of the Vulnerable Software and Affected Versions happyfish100 libfastcommon versions up to 1.0.84 Description A security issue exists in happyfish100 libfastcommon up to version 1.0.84. The base64 decode function within the src/base64.c file is susceptible to a stack-based buffer overflow...

libfastcommon 安全漏洞

libfastcommon is a C language code library developed by YuQing personally. Versions of libfastcommon prior to 1.0.84 contained security vulnerabilities. These vulnerabilities stemmed from incorrect operations on the base64decode function in the src/base64.c file, which could lead to stack-based...

MGASA-2026-0021 Updated iperf packages fix security vulnerabilities

In iperf before 3.19.1, iperfauth.c has an off-by-one error and resultant heap-based buffer overflow. CVE-2025-54349 In iperf before 3.19.1, iperfauth.c has a Base64Decode assertion failure and application exit upon a malformed authentication attempt. CVE-2025-54350...

Updated iperf packages fix security vulnerabilities

In iperf before 3.19.1, iperfauth.c has an off-by-one error and resultant heap-based buffer overflow. CVE-2025-54349 In iperf before 3.19.1, iperfauth.c has a Base64Decode assertion failure and application exit upon a malformed authentication attempt. CVE-2025-54350...

BIT-PYTHON-2025-12781 base64.b64decode() always accepts "+/" characters, despite setting altchars

When passing data to the b64decode, standardb64decode, and urlsafeb64decode functions in the "base64" module the characters "+/" will always be accepted, regardless of the value of "altchars" parameter, typically used to establish an "alternative base64 alphabet" such as the URL safe alphabet. Th...

BIT-PYTHON-MIN-2025-12781 base64.b64decode() always accepts "+/" characters, despite setting altchars

When passing data to the b64decode, standardb64decode, and urlsafeb64decode functions in the "base64" module the characters "+/" will always be accepted, regardless of the value of "altchars" parameter, typically used to establish an "alternative base64 alphabet" such as the URL safe alphabet. Th...

BIT-LIBPYTHON-2025-12781 base64.b64decode() always accepts "+/" characters, despite setting altchars

When passing data to the b64decode, standardb64decode, and urlsafeb64decode functions in the "base64" module the characters "+/" will always be accepted, regardless of the value of "altchars" parameter, typically used to establish an "alternative base64 alphabet" such as the URL safe alphabet. Th...

Linux Distros Unpatched Vulnerability : CVE-2025-12781

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - When passing data to the b64decode, standardb64decode, and urlsafeb64decode functions in the base64 module the characters +/ will always be accepted, regardless...

DEBIAN-CVE-2025-12781

When passing data to the b64decode, standardb64decode, and urlsafeb64decode functions in the "base64" module the characters "+/" will always be accepted, regardless of the value of "altchars" parameter, typically used to establish an "alternative base64 alphabet" such as the URL safe alphabet. Th...

CVE-2025-12781

When passing data to the b64decode, standardb64decode, and urlsafeb64decode functions in the "base64" module the characters "+/" will always be accepted, regardless of the value of "altchars" parameter, typically used to establish an "alternative base64 alphabet" such as the URL safe alphabet. Th...

CVE-2025-12781 base64.b64decode() always accepts "+/" characters, despite setting altchars

When passing data to the b64decode, standardb64decode, and urlsafeb64decode functions in the "base64" module the characters "+/" will always be accepted, regardless of the value of "altchars" parameter, typically used to establish an "alternative base64 alphabet" such as the URL safe alphabet. Th...

CVE-2025-12781 base64.b64decode() always accepts "+/" characters, despite setting altchars

When passing data to the b64decode, standardb64decode, and urlsafeb64decode functions in the "base64" module the characters "+/" will always be accepted, regardless of the value of "altchars" parameter, typically used to establish an "alternative base64 alphabet" such as the URL safe alphabet. Th...

CVE-2025-12781

When passing data to the b64decode, standardb64decode, and urlsafeb64decode functions in the "base64" module the characters "+/" will always be accepted, regardless of the value of "altchars" parameter, typically used to establish an "alternative base64 alphabet" such as the URL safe alphabet. Th...

CVE-2025-12781

CVE-2025-12781 concerns the base64 module in Python, where b64decode(), standard_b64decode(), and urlsafe_b64decode() historically accept the characters "+/" regardless of the altchars parameter. The connected sources confirm this behavior and note that newer RFCs recommend restricting to the spe...

PSF-2026-7

When passing data to the b64decode, standardb64decode, and urlsafeb64decode functions in the "base64" module the characters "+/" will always be accepted, regardless of the value of "altchars" parameter, typically used to establish an "alternative base64 alphabet" such as the URL safe alphabet. Th...

Incomplete List of Disallowed Inputs

Overview Affected versions of this package are vulnerable to Incomplete List of Disallowed Inputs in the b64decode, standardb64decode, and urlsafeb64decode functions when the altchars parameter is used. An attacker can cause logical errors or compromise data integrity by submitting input containi...