CVE-2002-1983

QNX RTOS 6.1.0 - Denial of Service via Timer Tick Manipulation

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2002-1983. PoCs published by Pawel Pisarczyk.

AI-analyzed exploit summary This exploit creates multiple timers with specific characteristics to trigger a denial of service in QNX RTP 6.1. It leverages the `TimerCreate` and `TimerSettime` functions to overwhelm the system, causing it to hang.

Description

The timer implementation in QNX RTOS 6.1.0 allows local users to cause a denial of service (hang) and possibly execute arbitrary code by creating multiple timers with a 1-ms tick.

Exploits (1)

exploitdb WORKING POC VERIFIED
by Pawel Pisarczyk · cdosunix
https://www.exploit-db.com/exploits/21984

This exploit creates multiple timers with specific characteristics to trigger a denial of service in QNX RTP 6.1. It leverages the `TimerCreate` and `TimerSettime` functions to overwhelm the system, causing it to hang.

Classification
Working Poc 95%
Attack Type
Dos
Complexity
Trivial
Reliability
Reliable
Target: QNX RTP 6.1
No auth needed
Prerequisites: Local access to the QNX system
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (3)

Core 3
Core References
Third Party Advisory, VDB Entry mailing-list x_refsource_bugtraq
http://online.securityfocus.com/archive/1/298689
Third Party Advisory, VDB Entry vdb-entry x_refsource_xf
https://exchange.xforce.ibmcloud.com/vulnerabilities/10550
Exploit vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/6114

Scores

EPSS 0.0099
EPSS Percentile 58.0%

Details

Status published
Products (1)
qnx/rtos 6.1.0
Published Dec 31, 2002
Tracked Since Feb 18, 2026