Communicator vulnerabilitiesRanked by how likely they are to be used.
Communicator is made by Netscape. We track 35 published vulnerabilities in it, across 29 versions. None of them is on the list of flaws known to be exploited today. If you run Communicator, keep it on a version the vendor still supports.
We keep watching the known-exploited list.
Which Communicator vulnerabilities are being exploited?
This is the list that matters most: flaws criminals are using now.
None of Communicator's published vulnerabilities is on the list of flaws known to be exploited today. We keep watching that list.
Which Communicator flaws are most likely to be used?
Ranked by the latest exploit-likelihood forecast: the chance each flaw is used in an attack in the next 30 days. A high severity score on its own doesn't tell you that. Flaws shared by many other makers' products are left out.
- 34%CVE-2000-0711High
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...
- 20%CVE-2000-0676Medium
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...
- 18%
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.
- 13%CVE-2000-0655Medium
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.
- 8.7%CVE-2001-0596High
Netscape Communicator before 4.77 allows remote attackers to execute arbitrary Javascript via a GIF image whose comment contains the Javascript.
- 6.9%CVE-1999-0174Medium
The view-source CGI program allows remote attackers to read arbitrary files via a ..
- 6.0%CVE-1999-0537High
A configuration in a web browser such as Internet Explorer or Netscape Navigator allows execution of active content such as ActiveX, Java, Javascript, etc.
- 5.8%CVE-2002-2248Critical
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...
- 3.9%CVE-2002-2338Medium
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,...
- 3.6%CVE-1999-0440High
The byte code verifier component of the Java Virtual Machine (JVM) allows remote execution through malicious web pages.
Running Communicator? We'll keep checking.
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1 new flaw affects software Acme tracks
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.
- Matched to
- Communicator on Acme's software list
- What to do
- Plan in the vendor’s update
Sent to the alert recipients Acme chose. Also in the app and to Acme's webhook.
We track 35 published vulnerabilities listed under the name Communicator, across 29 versions.
None of Communicator's vulnerabilities is on the list of flaws known to be exploited today.
Create a Precursor Intelligence account and track Communicator. We match it against every published flaw, give each one a risk score from 0 to 100 and keep watching, so you hear about new ones as soon as we know, by email, in the app or by webhook.