Netscape Communicator vulnerabilities
34 vulnerabilities
Known vulnerabilities in Netscape Communicator, newest first, with CVSS severity, EPSS, KEV listings, ransomware use and the affected versions.
CVE-2001-0596netscapecommunicator
EPSS score8.69%
Netscape Communicator before 4.77 allows remote attackers to execute arbitrary Javascript via a GIF image whose comment contains the Javascript.CVE-2001-0921netscapecommunicatorEPSS score0.61%
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 cleartext.CVE-2000-1187netscapecommunicator+1EPSS score2.63%
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 field.CVE-2000-0406netscapecommunicatorEPSS score1.03%
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" vulnerability.CVE-2000-0655mozillamozilla+1EPSS score12.72%
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 1.CVE-2000-0034netscapecommunicatorEPSS score1.44%
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 passwords."CVE-2000-0517netscapecommunicatorEPSS score1.29%
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 information.CVE-2000-0087netscapecommunicatorEPSS score1.34%
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 plaintext.CVE-2000-0676netscapecommunicatorEPSS score20.48%
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 Orifice.CVE-2000-0409netscapecommunicatorEPSS score0.31%
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 certificate.CVE-2000-0711microsoftvirtual_machine+1EPSS score33.51%
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 Orifice.CVE-1999-1189netscapecommunicator+1EPSS score2.52%
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 file.CVE-1999-1357netscapecommunicatorEPSS score2.04%
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 that do not filter these characters.CVE-1999-1226netscapecommunicatorEPSS score0.84%
Netscape Communicator 4.7 and earlier allows remote attackers to cause a denial of service, and possibly execute arbitrary commands, via a long certificate key.CVE-1999-1262netscapecommunicatorEPSS score1.62%
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 activities.CVE-1999-1002netscapecommunicatorEPSS score0.78%
Netscape Navigator uses weak encryption for storing a user's Netscape mail password.CVE-1999-0762netscapecommunicatorEPSS score1.45%
When Javascript is embedded within the TITLE tag, Netscape Communicator allows a remote attacker to use the "about" protocol to gain access to browser information.CVE-1999-0685netscapecommunicatorEPSS score1.59%
Buffer overflow in Netscape Communicator via EMBED tags in the pluginspage option.CVE-1999-0031microsoftinternet_explorer+1EPSS score18.30%
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 vulnerability.CVE-1999-0424netscapecommunicatorEPSS score0.38%
talkback in Netscape 4.5 allows a local user to overwrite arbitrary files of another user whose Netscape crashes.