CVE-2002-0793
Hard link and possibly symbolic link following vulnerabilities in QNX RTOS 4.25 (aka QNX4) allow local users to overwrite arbitrary files via (1) the -f argument to the monitor utility, (2) the -d argument to dumper, (3) the -c argument to crttrap, or…
Does this matter?
3 public exploits are published in Exploit-DB (verified), so the technical barrier is gone even though the severity is medium and EPSS is 1.3%. Treat it as high on anything reachable from the internet.
Description
Hard link and possibly symbolic link following vulnerabilities in QNX RTOS 4.25 (aka QNX4) allow local users to overwrite arbitrary files via (1) the -f argument to the monitor utility, (2) the -d argument to dumper, (3) the -c argument to crttrap, or (4) using the Watcom sample utility.
- CVSS 3.1
- 5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
- EPSS
- 1.34% probability · 71th percentile
- Public exploits
- 3 in Exploit-DB · verified · first 31 May 2002
- CISA KEV
- Not listed
- Weakness
- CWE-59
- Affected
- blackberry/qnx neutrino real-time operating system
- Source
- cve@mitre.org
EPSS 1.3% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
Public exploits (3)
Entries in Exploit-DB that cite this CVE. Links go to the Exploit-DB page and to the file in the public repository; nothing is hosted here. A verified tick means the Exploit-DB team confirmed the exploit works against the stated version.
| EDB-ID | Title | Type | Published | Verified |
|---|---|---|---|---|
| EDB-21501source ↗ | QNX RTOS 4.25 - dumper Arbitrary File Modificationlinux · Simon Ouellette | local | 31 May 2002 | yes |
| EDB-21500source ↗ | QNX RTOS 4.25 - monitor Arbitrary File Modificationlinux · Simon Ouellette | local | 31 May 2002 | yes |
| EDB-21499source ↗ | QNX RTOS 4.25 - 'CRTTrap' File Disclosurelinux · Simon Ouellette | local | 31 May 2002 | yes |
References
- http://archives.neohapsis.com/archives/bugtraq/2002-05/0292.htmlBroken Link, Exploit, Vendor Advisory
- http://www.iss.net/security_center/static/9231.phpBroken Link, Patch, Vendor Advisory
- http://www.securityfocus.com/bid/4901Broken Link, Third Party Advisory, VDB Entry
- http://www.securityfocus.com/bid/4902Broken Link, Exploit, Patch, Third Party Advisory, VDB Entry, Vendor Advisory
- http://www.securityfocus.com/bid/4903Broken Link, Third Party Advisory, VDB Entry
- http://www.securityfocus.com/bid/4904Broken Link, Third Party Advisory, VDB Entry
- https://exchange.xforce.ibmcloud.com/vulnerabilities/9232Third Party Advisory, VDB Entry
- https://exchange.xforce.ibmcloud.com/vulnerabilities/9233Third Party Advisory, VDB Entry
- https://exchange.xforce.ibmcloud.com/vulnerabilities/9234Third Party Advisory, VDB Entry
- http://archives.neohapsis.com/archives/bugtraq/2002-05/0292.htmlBroken Link, Exploit, Vendor Advisory
- http://www.iss.net/security_center/static/9231.phpBroken Link, Patch, Vendor Advisory
- http://www.securityfocus.com/bid/4901Broken Link, Third Party Advisory, VDB Entry
- http://www.securityfocus.com/bid/4902Broken Link, Exploit, Patch, Third Party Advisory, VDB Entry, Vendor Advisory
- http://www.securityfocus.com/bid/4903Broken Link, Third Party Advisory, VDB Entry
- http://www.securityfocus.com/bid/4904Broken Link, Third Party Advisory, VDB Entry
- https://exchange.xforce.ibmcloud.com/vulnerabilities/9232Third Party Advisory, VDB Entry
- https://exchange.xforce.ibmcloud.com/vulnerabilities/9233Third Party Advisory, VDB Entry
- https://exchange.xforce.ibmcloud.com/vulnerabilities/9234Third Party Advisory, VDB Entry
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.