CVE-2004-2621
No known exploitation. EPSS puts it in the 53rd percentile. A vendor fix is available.
What to do
The vendor has published a fix. Version details are below where the sources state them.
What it is
From the CVE record
Nortel Contivity VPN Client 2.1.7, 3.00, 3.01, 4.91, and 5.01, when opening a VPN tunnel, does not check the gateway certificate until after a dialog box has been displayed to the user, which creates a race condition that allows remote attackers to perform a man-in-the-middle (MITM) attack.
In plain language
No plain-language summary for this CVE yet.
Exploitation
Where each signal puts this CVE on the scale from published to confirmed exploited.
- CISA KEV
Not in the catalog. CISA has not confirmed exploitation.
- Public exploits
No public exploit or proof of concept found in the sources we track.
- EPSS
0.7% chance of exploitation activity in the next 30 days, which ranks it in the 53rd percentile of scored CVEs.
Exploit Prediction Scoring System, FIRST.org. A probability, not a confirmation.
Lifecycle
4 events over 7438 days, from the signal feeds we watch.
- Patch availablerecord updated
- Publishedweakness classified
Affected products
And 1 more affected product. See all after sign-in
Technical detail
CVSS 2.0 vector
Open in the CVSS calculatorAV:N/AC:H/Au:N/C:P/I:P/A:N
Scored 4.0 by NVD.
How it is reached
- Access Vector NetworkExploitable remotely over the network
- Access Complexity HighSpecialized conditions required
- Authentication NoneNo authentication required
Impact if exploited
- Confidentiality PartialSome information is disclosed
- Integrity PartialSome data can be modified
- Availability NoneNo availability impact
Weaknesses
Sources
References in the record
And 3 more references. See all after sign-in
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