All vulnerabilities

Servers and applications

CVE-2001-0543

Memory leak in NNTP service in Windows NT 4.0 and Windows 2000 allows remote attackers to cause a denial of service (memory exhaustion) via a large number of malformed posts.

Severity
Medium 5.0
Published
20 Sept 2001
Last changed
16 Jun 2026
Added to UpHeron
1 Nov 2026
Exploit chance
19% in the next 30 daysHigher than 97% of CVEs. EPSS by FIRST, 12 Nov 2026
Weakness
Memory leak (CWE-401)
Attack
Over the network · No login needed
Attacker can
Slow it down
CVSS vector
AV:N/AC:L/Au:N/C:N/I:N/A:P
Sources
NVD

Affected software

SoftwareAffected versions
Microsoft Exchange ServerServers and applications · cpe:a:microsoft:exchange_server
  • Version 2000

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2001-0543
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2001-0543