CVE-2009-1786

CVE-2009-1786 is a medium-severity vulnerability in Ibm Aix with a CVSS 2.0 base score of 6.9. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-362.

Key facts

Description

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.

Frequently asked questions

What is CVE-2009-1786?
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.
How severe is CVE-2009-1786?
CVE-2009-1786 has a CVSS 2.0 base score of 6.9, rated medium severity.
Is CVE-2009-1786 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (47th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2009-1786?
CVE-2009-1786 primarily affects Ibm Aix. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2009-1786?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2009-1786 published?
CVE-2009-1786 was published on 2009-05-26 and last updated on 2026-06-16.

References

Affected products (2)

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