CVE-2006-5540

CVE-2006-5540 is a medium-severity vulnerability in Postgresql with a CVSS 2.0 base score of 4.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Description

backend/parser/analyze.c in PostgreSQL 8.1.x before 8.1.5 allows remote authenticated users to cause a denial of service (daemon crash) via certain aggregate functions in an UPDATE statement, which are not properly handled during a "MIN/MAX index optimization."

Frequently asked questions

What is CVE-2006-5540?
backend/parser/analyze.c in PostgreSQL 8.1.x before 8.1.5 allows remote authenticated users to cause a denial of service (daemon crash) via certain aggregate functions in an UPDATE statement, which are not properly handled during a "MIN/MAX index optimization."
How severe is CVE-2006-5540?
CVE-2006-5540 has a CVSS 2.0 base score of 4.0, rated medium severity.
Is CVE-2006-5540 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (77th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2006-5540?
CVE-2006-5540 primarily affects Postgresql. In total, 56 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2006-5540?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2006-5540 published?
CVE-2006-5540 was published on 2006-10-26 and last updated on 2026-06-16.

References

Affected products (56)

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