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Vulnerability record · CVE-2002-0234 · published 29 May 2002

CVE-2002-0234: Juniper netscreen screenos vulnerability

Juniper · Netscreen Screenos

NetScreen ScreenOS before 2.6.1 does not support a maximum number of concurrent sessions for a system, which allows an attacker on the trusted network to cause a denial of service (resource exhaustion) via a port scan to an external network, which consumes all available connections.

2.1 CVSS 2.0 Low EPSS 0.35% · top 73.4%
2.1CVSS 2.0 base score
0.35%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
10References
16 Jun 2026Last modified by NVD

Description

NetScreen ScreenOS before 2.6.1 does not support a maximum number of concurrent sessions for a system, which allows an attacker on the trusted network to cause a denial of service (resource exhaustion) via a port scan to an external network, which consumes all available connections.

AV:L/AC:L/Au:N/C:N/I:N/A:P

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://marc.info/?l=bugtraq&m=101258281818524&w=2
http://marc.info/?l=bugtraq&m=101258887105690&w=2
http://online.securityfocus.com/archive/1/254268 Vendor Advisory
http://www.iss.net/security_center/static/8057.php PatchVendor Advisory
http://www.securityfocus.com/bid/4015 PatchVendor Advisory
http://marc.info/?l=bugtraq&m=101258281818524&w=2
http://marc.info/?l=bugtraq&m=101258887105690&w=2
http://online.securityfocus.com/archive/1/254268 Vendor Advisory
http://www.iss.net/security_center/static/8057.php PatchVendor Advisory
http://www.securityfocus.com/bid/4015 PatchVendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

5.4CVE-2018-0059Juniper netscreen screenos cross-site scripting vulnerabilityA persistent cross-site scripting vulnerability in the graphical user interface of ScreenOS may allow a remote authenticated user to inject web scrip…EPSS 0.80%5.0CVE-2005-2640Neoteris instant virtual extranet vulnerabilityBehavioral discrepancy information leak in Juniper Netscreen VPN running ScreenOS 5.2.0 and earlier, when using IKE with pre-shared key authenticatio…EPSS 7.1%5.0CVE-2004-1446Juniper netscreen screenos vulnerabilityUnknown vulnerability in ScreenOS in Juniper Networks NetScreen firewall 3.x through 5.x allows remote attackers to cause a denial of service (device…EPSS 3.1%5.0CVE-2002-1547Juniper netscreen screenos vulnerabilityNetscreen running ScreenOS 4.0.0r6 and earlier allows remote attackers to cause a denial of service via a malformed SSH packet to the Secure Command …EPSS 3.5%5.0CVE-2002-2150Juniper netscreen screenos vulnerabilityFirewalls from multiple vendors empty state tables more slowly than they are filled, which allows remote attackers to flood state tables with packet …EPSS 2.0%5.0CVE-2002-0891Juniper netscreen screenos vulnerabilityThe web interface (WebUI) of NetScreen ScreenOS before 2.6.1r8, and certain 2.8.x and 3.0.x versions before 3.0.3r1, allows remote attackers to cause…EPSS 1.6%4.3CVE-2008-6096Juniper netscreen screenos cross-site scripting vulnerabilityCross-site scripting (XSS) vulnerability in Juniper NetScreen ScreenOS before 5.4r10, 6.0r6, and 6.1r2 allows remote attackers to inject arbitrary we…EPSS 1.0%2.1CVE-2001-0589Juniper netscreen screenos vulnerabilityNetScreen ScreenOS prior to 2.5r6 on the NetScreen-10 and Netscreen-100 can allow a local attacker to bypass the DMZ 'denial' policy via specific tra…EPSS 0.33%

Source: NIST National Vulnerability Database (record CVE-2002-0234), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.