What happened
wrshdsp.exe in Denicomp Winsock RSHD/NT 2.21.00 and earlier allows remote attackers to cause a denial of service (CPU consumption) via (1) in 2.20.00 and earlier, an invalid port number such as a negative number, which causes a connection attempt to that port and all ports below 1024, and (2) in 2.21.00, a port number of 1024.
Affected versions
n/a: n/a Fixed: See vendor advisory.
Why it matters
Review the vendor advisory and exposure of the affected product to determine operational impact.
Detection & mitigation
- Apply vendor-provided updates or mitigations.
- Review affected product exposure and access logs.
Public PoC references
RepositoryAuthorFirst seenReference
online.securityfocus.comNVD reference2001-12-08Verifiedwww.securityfocus.comNVD reference2001-12-08Verifiedwww.securityfocus.comNVD reference2001-12-08VerifiedExploit-DB 21174Denicomp Winsock RSHD/NT Standard Error 2.20.00 - Denial of Servicejimmers2001-12-10VerifiedExploit-DB 21175Denicomp Winsock RSHD/NT Standard Error 2.21.00 - Denial of Servicejimmers2001-12-10VerifiedSource timeline
CVE record published by NVDView source ↗
Record history
Record created from the first normalized source observation.
Metadata and source references refreshed.