CVE-2026-52761

A flaw was found in ModSecurity, an open-source web application firewall WAF. The t:utf8toUnicode transformation function, responsible for converting UTF-8 encoded characters to Unicode, generates incorrect output on i386 architectures. This vulnerability allows an attacker to bypass WAF rules,...

Linux Distros Unpatched Vulnerability : CVE-2026-52761

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - ModSecurity is an open source, cross platform web application firewall WAF engine for Apache, IIS and Nginx. From 3.0.0 through 3.0.15, the t:utf8toUnicode...

DEBIAN-CVE-2026-52761

ModSecurity is an open source, cross platform web application firewall WAF engine for Apache, IIS and Nginx. From 3.0.0 through 3.0.15, the t:utf8toUnicode transformation in src/actions/transformations/utf8tounicode.cc produces wrong output on i386 architecture because snprintf uses sizeof on a...

UBUNTU-CVE-2026-52761

ModSecurity is an open source, cross platform web application firewall WAF engine for Apache, IIS and Nginx. From 3.0.0 through 3.0.15, the t:utf8toUnicode transformation in src/actions/transformations/utf8tounicode.cc produces wrong output on i386 architecture because snprintf uses sizeof on a...

CVE-2026-52761 ModSecurity: Transformation utf8toUnicode produces wrong output on i386 architecture

ModSecurity is an open source, cross platform web application firewall WAF engine for Apache, IIS and Nginx. From 3.0.0 through 3.0.15, the t:utf8toUnicode transformation in src/actions/transformations/utf8tounicode.cc produces wrong output on i386 architecture because snprintf uses sizeof on a...

CVE-2018-5178: Improper Restriction of Operations within the Bounds of a Memory Buffer

A buffer overflow was found during UTF8 to Unicode string conversion within JavaScript with extremely large amounts of data. This vulnerability requires the use of a malicious or vulnerable legacy extension in order to occur. This vulnerability affects Thunderbird ESR 52.8, Thunderbird 52.8, and...

UBUNTU-CVE-2012-1176

Buffer overflow in the fribidiutf8tounicode function in PyFriBidi before 0.11.0 allows remote attackers to cause a denial of service application crash via a 4-byte utf-8 sequence...

Mozilla Thunderbird: Multiple vulnerabilities

Background Mozilla Thunderbird is the next-generation mail client from the Mozilla project. Description The following vulnerabilities were found and fixed in Mozilla Thunderbird: Mark Dowd from ISS X-Force reported an exploitable heap overrun in the GIF processing of obsolete Netscape extension 2...

GLSA-200503-32 : Mozilla Thunderbird: Multiple vulnerabilities

The remote host is affected by the vulnerability described in GLSA-200503-32 Mozilla Thunderbird: Multiple vulnerabilities The following vulnerabilities were found and fixed in Mozilla Thunderbird: Mark Dowd from ISS X-Force reported an exploitable heap overrun in the GIF processing of obsolete...

security flaw

Heap-based buffer overflow in the UTF8ToNewUnicode function for Firefox before 1.0.1 and Mozilla before 1.7.6 might allow remote attackers to cause a denial of service crash or execute arbitrary code via invalid sequences in a UTF8 encoded string that result in a zero length value...