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Vulnerability record · CVE-2000-0320 · published 21 April 2000

CVE-2000-0320: Qualcomm qpopper vulnerability

Qualcomm · Qpopper

Qpopper 2.53 and 3.0 does not properly identify the \n string which identifies the end of message text, which allows a remote attacker to cause a denial of service or corrupt mailboxes via a message line that is 1023 characters long and ends in \n.

5.0 CVSS 2.0 Medium EPSS 1.2% · top 33.9%
5.0CVSS 2.0 base score
1.2%EPSS exploitation probability, 30 days
NoNot in CISA KEV
3Affected product versions listed by NVD
4References, 2 tagged exploit
16 Jun 2026Last modified by NVD

Description

Qpopper 2.53 and 3.0 does not properly identify the \n string which identifies the end of message text, which allows a remote attacker to cause a denial of service or corrupt mailboxes via a message line that is 1023 characters long and ends in \n.

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

Affected products

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

References

LinkTags
http://www.securityfocus.com/bid/1133 ExploitPatchVendor Advisory
http://www.securityfocus.com/templates/archive.pike?list=1&msg=9763.000421%40SECURITY.NNOV.RU
http://www.securityfocus.com/bid/1133 ExploitPatchVendor Advisory
http://www.securityfocus.com/templates/archive.pike?list=1&msg=9763.000421%40SECURITY.NNOV.RU

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Related vulnerabilities

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

10.0CVE-2003-0143Qualcomm qpopper vulnerabilityThe pop_msg function in qpopper 4.0.x before 4.0.5fc2 does not null terminate a message buffer after a call to Qvsnprintf, which could allow authenti…EPSS 8.6%10.0CVE-2001-1046Qualcomm qpopper vulnerabilityBuffer overflow in qpopper (aka qpop or popper) 4.0 through 4.0.2 allows remote attackers to gain privileges via a long username.EPSS 1.9%10.0CVE-1999-0822Qualcomm qpopper vulnerabilityBuffer overflow in Qpopper (qpop) 3.0 allows remote root access via AUTH command.EPSS 4.9%10.0CVE-1999-0722Sun cobalt raq 2 vulnerabilityThe default configuration of Cobalt RaQ2 servers allows remote users to install arbitrary software packages.EPSS 2.2%9.8CVE-1999-0006Qualcomm qpopper out-of-bounds read vulnerabilityBuffer overflow in POP servers based on BSD/Qualcomm's qpopper allows remote attackers to gain root access using a long PASS command.EPSS 12%7.5CVE-2002-0346Sun cobalt raq 2 vulnerabilityCross-site scripting vulnerability in Cobalt RAQ 4 allows remote attackers to execute arbitrary script as other Cobalt users via Javascript in a URL …EPSS 6.5%7.5CVE-2002-0348Sun cobalt raq 2 vulnerabilityservice.cgi in Cobalt RAQ 4 allows remote attackers to cause a denial of service, and possibly execute arbitrary code, via a long service argument.EPSS 7.7%7.5CVE-2000-0442Qualcomm qpopper vulnerabilityQpopper 2.53 and earlier allows local users to gain privileges via a formatting string in the From: header, which is processed by the euidl command.EPSS 3.3%

Source: NIST National Vulnerability Database (record CVE-2000-0320), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.