CVE-2009-1786
The malloc subsystem in libc in IBM AIX 5.3 and 6.1 allows local users to create or overwrite...
The malloc subsystem in libc in IBM AIX 5.3 and 6.1 allows local users to create or overwrite arbitrary files via a symlink attack on the log file associated with the MALLOCDEBUG environment variable.
Exploit likelihood
What each source reports
NVD Score used
The malloc subsystem in libc in IBM AIX 5.3 and 6.1 allows local users to create or overwrite arbitrary files via a symlink attack on the log file associated with the MALLOCDEBUG environment variable.
- Record
CVE-2009-1786- CVSS 2.0
- 6.9 Medium
AV:L/AC:M/Au:N/C:C/I:C/A:C - Weakness
- CWE-362
- Updated
- 2026-11-02
CVE List No score
The malloc subsystem in libc in IBM AIX 5.3 and 6.1 allows local users to create or overwrite arbitrary files via a symlink attack on the log file associated with the MALLOCDEBUG environment variable.
- Record
CVE-2009-1786- Updated
- 2026-11-02
EUVDEUVD-2009-1781 No score
The malloc subsystem in libc in IBM AIX 5.3 and 6.1 allows local users to create or overwrite arbitrary files via a symlink attack on the log file associated with the MALLOCDEBUG environment variable.
- Record
EUVD-2009-1781- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-qx62-xcvw-248x No score
The malloc subsystem in libc in IBM AIX 5.3 and 6.1 allows local users to create or overwrite...
The malloc subsystem in libc in IBM AIX 5.3 and 6.1 allows local users to create or overwrite arbitrary files via a symlink attack on the log file associated with the MALLOCDEBUG environment variable.
- Record
GHSA-qx62-xcvw-248x- Weakness
- CWE-362
- Updated
- 2026-11-02
Affected products
Public exploits
Links only. Every CVE stores no exploit code.
| Source | Link | Date |
|---|---|---|
| Exploit-DB | Kingsoft Webshield 1.1.0.62 - Cross-Site Scripting / Remote Command Execution | 2009-05-20 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, Exploit-DB, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2009-1786 is a medium vulnerability (CVSS 6.9) in Ibm Aix, published May 26, 2009. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 0.67%, the 52nd percentile. No source names a fixed version.
References
aix.software.ibm.com/aix/efixes/security/libc_advisory.asc
ibm.com/support/docview.wss?uid=isg1IZ50445
oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6276
osvdb.org/54617
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labs.idefense.com/intelligence/vulnerabilities/display.php?id=802
securityfocus.com/bid/35034
exploit-db.com/exploits/9306
securitytracker.com/id?1022261
vupen.com/english/advisories/2009/1380
exchange.xforce.ibmcloud.com/vulnerabilities/50636
secunia.com/advisories/35146
nvd.nist.gov/vuln/detail/CVE-2009-1786
github.com/advisories/GHSA-qx62-xcvw-248x