How severe is CVE-2021-29702?

CVE-2021-29702 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2021-29702 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-2021-29702?

CVE-2021-29702 affects Ibm Db2. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-29702?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2021-29702 published?

CVE-2021-29702 was published on 2021-06-16 and last updated on 2026-06-17.

CVE-2021-29702

CVE-2021-29702 is a high-severity vulnerability in Ibm Db2 with a CVSS 3.x base score of 7.5. 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-74.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 2% (77th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-74
Affected product: Ibm Db2
Published: 2021-06-16
Last modified: 2026-06-17

Description

Db2 for Linux, UNIX and Windows (includes Db2 Connect Server) 11.1.4 and 11.5.5 is vulnerable to a denial of service as the server terminates abnormally when executing a specially crafted SELECT statement. IBM X-Force ID: 200658.

Frequently asked questions

What is CVE-2021-29702?: Db2 for Linux, UNIX and Windows (includes Db2 Connect Server) 11.1.4 and 11.5.5 is vulnerable to a denial of service as the server terminates abnormally when executing a specially crafted SELECT statement. IBM X-Force ID: 200658.
How severe is CVE-2021-29702?: CVE-2021-29702 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2021-29702 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-2021-29702?: CVE-2021-29702 affects Ibm Db2. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-29702?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2021-29702 published?: CVE-2021-29702 was published on 2021-06-16 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:ibm:db2:*:*:*:*:*:*:*:*

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