How severe is CVE-2006-4257?

CVE-2006-4257 has a CVSS 2.0 base score of 4.0, rated medium severity.

Is CVE-2006-4257 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (80th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2006-4257?

CVE-2006-4257 primarily affects Ibm Db2. In total, 65 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2006-4257?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2006-4257 published?

CVE-2006-4257 was published on 2006-08-21 and last updated on 2026-06-16.

CVE-2006-4257

CVE-2006-4257 is a medium-severity vulnerability in Ibm Db2 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. The underlying weakness is classified as CWE-399.

Key facts

Severity: Medium (CVSS 2.0 base score 4.0)
EPSS exploit prediction: 2% (80th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-399
Affected product: Ibm Db2
Published: 2006-08-21
Last modified: 2026-06-16

Description

IBM DB2 Universal Database (UDB) before 8.1 FixPak 13 allows remote authenticated users to cause a denial of service (crash) by (1) sending the first ACCSEC command without an RDBNAM parameter during the CONNECT process, or (2) sending crafted SQLJRA packet, which results in a null dereference.

Frequently asked questions

What is CVE-2006-4257?: IBM DB2 Universal Database (UDB) before 8.1 FixPak 13 allows remote authenticated users to cause a denial of service (crash) by (1) sending the first ACCSEC command without an RDBNAM parameter during the CONNECT process, or (2) sending crafted SQLJRA packet, which results in a null dereference.
How severe is CVE-2006-4257?: CVE-2006-4257 has a CVSS 2.0 base score of 4.0, rated medium severity.
Is CVE-2006-4257 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (80th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2006-4257?: CVE-2006-4257 primarily affects Ibm Db2. In total, 65 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2006-4257?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2006-4257 published?: CVE-2006-4257 was published on 2006-08-21 and last updated on 2026-06-16.

References

Affected products (65)

cpe:2.3:a:ibm:db2:8.0:*:aix:*:*:*:*:*
cpe:2.3:a:ibm:db2:8.0:*:linux:*:*:*:*:*
cpe:2.3:a:ibm:db2:8.0:*:os_390:*:*:*:*:*
cpe:2.3:a:ibm:db2:8.1:*:aix:*:*:*:*:*
cpe:2.3:a:ibm:db2:8.1:*:hp_ux:*:*:*:*:*
cpe:2.3:a:ibm:db2:8.1:*:linux:*:*:*:*:*
cpe:2.3:a:ibm:db2:8.1:*:solaris:*:*:*:*:*
cpe:2.3:a:ibm:db2:8.1:*:windows:*:*:*:*:*
cpe:2.3:a:ibm:db2:8.1.4:*:aix:*:*:*:*:*
cpe:2.3:a:ibm:db2:8.1.4:*:hp_ux:*:*:*:*:*
cpe:2.3:a:ibm:db2:8.1.4:*:linux:*:*:*:*:*
cpe:2.3:a:ibm:db2:8.1.4:*:solaris:*:*:*:*:*
cpe:2.3:a:ibm:db2:8.1.4:*:windows:*:*:*:*:*
cpe:2.3:a:ibm:db2:8.1.5:*:aix:*:*:*:*:*
cpe:2.3:a:ibm:db2:8.1.5:*:hp_ux:*:*:*:*:*
cpe:2.3:a:ibm:db2:8.1.5:*:linux:*:*:*:*:*
cpe:2.3:a:ibm:db2:8.1.5:*:solaris:*:*:*:*:*
cpe:2.3:a:ibm:db2:8.1.5:*:windows:*:*:*:*:*
cpe:2.3:a:ibm:db2:8.1.6:*:aix:*:*:*:*:*
cpe:2.3:a:ibm:db2:8.1.6:*:hp_ux:*:*:*:*:*
cpe:2.3:a:ibm:db2:8.1.6:*:linux:*:*:*:*:*
cpe:2.3:a:ibm:db2:8.1.6:*:solaris:*:*:*:*:*
cpe:2.3:a:ibm:db2:8.1.6:*:windows:*:*:*:*:*
cpe:2.3:a:ibm:db2:8.1.6c:*:aix:*:*:*:*:*
cpe:2.3:a:ibm:db2:8.1.6c:*:hp_ux:*:*:*:*:*
cpe:2.3:a:ibm:db2:8.1.6c:*:linux:*:*:*:*:*
cpe:2.3:a:ibm:db2:8.1.6c:*:solaris:*:*:*:*:*
cpe:2.3:a:ibm:db2:8.1.6c:*:windows:*:*:*:*:*
cpe:2.3:a:ibm:db2:8.1.7:*:aix:*:*:*:*:*
cpe:2.3:a:ibm:db2:8.1.7:*:hp_ux:*:*:*:*:*
cpe:2.3:a:ibm:db2:8.1.7:*:linux:*:*:*:*:*
cpe:2.3:a:ibm:db2:8.1.7:*:solaris:*:*:*:*:*
cpe:2.3:a:ibm:db2:8.1.7:*:windows:*:*:*:*:*
cpe:2.3:a:ibm:db2:8.1.7b:*:aix:*:*:*:*:*
cpe:2.3:a:ibm:db2:8.1.7b:*:hp_ux:*:*:*:*:*
cpe:2.3:a:ibm:db2:8.1.7b:*:linux:*:*:*:*:*
cpe:2.3:a:ibm:db2:8.1.7b:*:solaris:*:*:*:*:*
cpe:2.3:a:ibm:db2:8.1.7b:*:windows:*:*:*:*:*
cpe:2.3:a:ibm:db2:8.1.8:*:aix:*:*:*:*:*
cpe:2.3:a:ibm:db2:8.1.8:*:hp_ux:*:*:*:*:*

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