Communicator Security Vulnerabilities

CVE-2010-3048

Cisco Unified Personal Communicator 7.0 (1.13056) does not free allocated memory for received data and does not perform validation if memory allocation is successful, causing a remote denial of service...

CVE-2017-7908

A heap-based buffer overflow exists in the third-party product Gigasoft, v5 and prior, included in GE Communicator 3.15 and prior. A malicious HTML file that loads the ActiveX controls can trigger the vulnerability via unchecked function...

CVE-2002-2284

Netscape Communicator 4.0 through 4.79 allows remote attackers to bypass JVM security and execute arbitrary Java code via an applet that loads user-supplied Java...

CVE-2002-1766

Buffer overflow in Composer in Netscape 4.77 allows local users to overwrite process memory and execute arbitrary code via a font tag with a long face...

CVE-2002-2013

Mozilla 0.9.6 and earlier and Netscape 6.2 and earlier allows remote attackers to steal cookies from another domain via a link with a hex-encoded null character (%00) followed by the target...

CVE-2002-2248

Buffer overflow in the sun.awt.windows.WDefaultFontCharset Java class implementation in Netscape 4.0 allows remote attackers to execute arbitrary code via an applet that calls the WDefaultFontCharset constructor with a long string and invokes the canConvert...

CVE-2002-2308

Netscape Communicator 6.2.1 allows remote attackers to cause a denial of service in client browsers via a webpage containing a recursive META refresh tag where the content tag is blank and the URL tag references...

CVE-2002-2338

The POP3 mail client in Mozilla 1.0 and earlier, and Netscape Communicator 4.7 and earlier, allows remote attackers to cause a denial of service (no new mail) via a mail message containing a dot (.) at a newline, which is interpreted as the end of the...

CVE-2002-1204

Netscape Communicator 4.x allows attackers to use a link to steal a user's preferences, including potentially sensitive information such as URL history, e-mail address, and possibly the e-mail password, by redefining the user_pref() function and accessing the prefs.js file, which is stored in a...

CVE-2002-0593

Buffer overflow in Netscape 6 and Mozilla 1.0 RC1 and earlier allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via a long channel name in an IRC...

CVE-2001-0921

Netscape 4.79 and earlier for MacOS allows an attacker with access to the browser to obtain passwords from form fields by printing the document into which the password has been typed, which is printed in...

CVE-2001-0596

Netscape Communicator before 4.77 allows remote attackers to execute arbitrary Javascript via a GIF image whose comment contains the...

CVE-2000-1187

Buffer overflow in the HTML parser for Netscape 4.75 and earlier allows remote attackers to execute arbitrary commands via a long password value in a form...

CVE-2000-0676

Netscape Communicator and Navigator 4.04 through 4.74 allows remote attackers to read arbitrary files by using a Java applet to open a connection to a URL using the "file", "http", "https", and "ftp" protocols, as demonstrated by Brown...

CVE-2000-0711

Netscape Communicator does not properly prevent a ServerSocket object from being created by untrusted entities, which allows remote attackers to create a server on the victim's system via a malicious applet, as demonstrated by Brown...

CVE-2000-0655

Netscape Communicator 4.73 and earlier allows remote attackers to cause a denial of service or execute arbitrary commands via a JPEG image containing a comment with an illegal field length of...

CVE-2000-0517

Netscape 4.73 and earlier does not properly warn users about a potentially invalid certificate if the user has previously accepted the certificate for a different web site, which could allow remote attackers to spoof a legitimate web site by compromising that site's DNS...

CVE-2000-0409

Netscape 4.73 and earlier follows symlinks when it imports a new certificate, which allows local users to overwrite files of the user importing the...

CVE-2000-0406

Netscape Communicator before version 4.73 and Navigator 4.07 do not properly validate SSL certificates, which allows remote attackers to steal information by redirecting traffic from a legitimate web server to their own malicious server, aka the "Acros-Suencksen SSL"...

CVE-1999-0790

A remote attacker can read information from a Netscape user's cache via...

CVE-1999-1002

Netscape Navigator uses weak encryption for storing a user's Netscape mail...

CVE-2000-0087

Netscape Mail Notification (nsnotify) utility in Netscape Communicator uses IMAP without SSL, even if the user has set a preference for Communicator to use an SSL connection, allowing a remote attacker to sniff usernames and passwords in...

CVE-1999-0892

Buffer overflow in Netscape Communicator before 4.7 via a dynamic font whose length field is less than the size of the...

CVE-2000-0034

Netscape 4.7 records user passwords in the preferences.js file during an IMAP or POP session, even if the user has not enabled "remember...

CVE-1999-1189

Buffer overflow in Netscape Navigator/Communicator 4.7 for Windows 95 and Windows 98 allows remote attackers to cause a denial of service, and possibly execute arbitrary commands, via a long argument after the ? character in a URL that references an .asp, .cgi, .html, or .pl...

CVE-1999-1226

Netscape Communicator 4.7 and earlier allows remote attackers to cause a denial of service, and possibly execute arbitrary commands, via a long certificate...

CVE-1999-1357

Netscape Communicator 4.04 through 4.7 (and possibly other versions) in various UNIX operating systems converts the 0x8b character to a "<" sign, and the 0x9b character to a ">" sign, which could allow remote attackers to attack other clients via cross-site scripting (CSS) in CGI programs tha...

CVE-1999-0685

Buffer overflow in Netscape Communicator via EMBED tags in the pluginspage...

CVE-1999-0809

Netscape Communicator 4.x with Javascript enabled does not warn a user of cookie settings, even if they have selected the option to "Only accept cookies originating from the same server as the page being...

CVE-1999-0762

When Javascript is embedded within the TITLE tag, Netscape Communicator allows a remote attacker to use the "about" protocol to gain access to browser...

CVE-1999-0425

talkback in Netscape 4.5 allows a local user to kill an arbitrary process of another user whose Netscape...

CVE-1999-0424

talkback in Netscape 4.5 allows a local user to overwrite arbitrary files of another user whose Netscape...

CVE-1999-0440

The byte code verifier component of the Java Virtual Machine (JVM) allows remote execution through malicious web...

CVE-1999-0537

A configuration in a web browser such as Internet Explorer or Netscape Navigator allows execution of active content such as ActiveX, Java, Javascript,...

CVE-1999-1262

Java in Netscape 4.5 does not properly restrict applets from connecting to other hosts besides the one from which the applet was loaded, which violates the Java security model and could allow remote attackers to conduct unauthorized...

CVE-1999-0031

JavaScript in Internet Explorer 3.x and 4.x, and Netscape 2.x, 3.x and 4.x, allows remote attackers to monitor a user's web activities, aka the Bell Labs...

CVE-1999-0174

The view-source CGI program allows remote attackers to read arbitrary files via a .. (dot dot)...