How severe is CVE-2023-35012?

CVE-2023-35012 has a CVSS 3.x base score of 6.7, rated medium severity. It is exploitable over local access with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2023-35012 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (13th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-35012?

CVE-2023-35012 affects Ibm Db2. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-35012?

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

When was CVE-2023-35012 published?

CVE-2023-35012 was published on 2023-07-17 and last updated on 2026-06-17.

CVE-2023-35012

CVE-2023-35012 is a medium-severity vulnerability in Ibm Db2 with a CVSS 3.x base score of 6.7. 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-121.

Key facts

Severity: Medium (CVSS 3.x base score 6.7)
EPSS exploit prediction: 0% (13th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-121
Affected product: Ibm Db2
Published: 2023-07-17
Last modified: 2026-06-17

Description

IBM Db2 for Linux, UNIX and Windows (includes Db2 Connect Server) 11.5 with a Federated configuration is vulnerable to a stack-based buffer overflow, caused by improper bounds checking. A local user with SYSADM privileges could overflow the buffer and execute arbitrary code on the system. IBM X-Force ID: 257763.

Frequently asked questions

What is CVE-2023-35012?: IBM Db2 for Linux, UNIX and Windows (includes Db2 Connect Server) 11.5 with a Federated configuration is vulnerable to a stack-based buffer overflow, caused by improper bounds checking. A local user with SYSADM privileges could overflow the buffer and execute arbitrary code on the system. IBM X-Force ID: 257763.
How severe is CVE-2023-35012?: CVE-2023-35012 has a CVSS 3.x base score of 6.7, rated medium severity. It is exploitable over local access with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2023-35012 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (13th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-35012?: CVE-2023-35012 affects Ibm Db2. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-35012?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-35012 published?: CVE-2023-35012 was published on 2023-07-17 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:ibm:db2:11.5:*:*:*:*:-:*:*

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