How severe is CVE-2024-33809?

CVE-2024-33809 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2024-33809 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (34th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2024-33809?

CVE-2024-33809 affects Pingcap Tidb. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2024-33809?

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

Does CVE-2024-33809 have an EU (EUVD) identifier?

Yes. CVE-2024-33809 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-31518.

When was CVE-2024-33809 published?

CVE-2024-33809 was published on 2024-05-24 and last updated on 2026-06-17.

CVE-2024-33809

CVE-2024-33809 is a medium-severity vulnerability in Pingcap Tidb with a CVSS 3.x base score of 6.5. 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-120.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
EPSS exploit prediction: 0% (34th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-31518
Weakness: CWE-120
Affected product: Pingcap Tidb
Published: 2024-05-24
Last modified: 2026-06-17

Description

PingCAP TiDB v7.5.1 was discovered to contain a buffer overflow vulnerability, which could lead to database crashes and denial of service attacks.

Frequently asked questions

What is CVE-2024-33809?: PingCAP TiDB v7.5.1 was discovered to contain a buffer overflow vulnerability, which could lead to database crashes and denial of service attacks.
How severe is CVE-2024-33809?: CVE-2024-33809 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2024-33809 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (34th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2024-33809?: CVE-2024-33809 affects Pingcap Tidb. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2024-33809?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2024-33809 have an EU (EUVD) identifier?: Yes. CVE-2024-33809 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-31518.
When was CVE-2024-33809 published?: CVE-2024-33809 was published on 2024-05-24 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:pingcap:tidb:7.5.1:*:*:*:*:*:*:*

More vulnerabilities in Pingcap Tidb

CVE-2024-41433 — Critical (CVSS 9.8): PingCAP TiDB v8.1.0 was discovered to contain a buffer overflow via the component expression.ExplainExpressionList.…
CVE-2022-3023 — Critical (CVSS 9.8): Use of Externally-Controlled Format String in GitHub repository pingcap/tidb prior to 6.4.0, 6.1.3.
CVE-2022-31011 — High (CVSS 7.8): TiDB is an open-source NewSQL database that supports Hybrid Transactional and Analytical Processing (HTAP) workloads.…
CVE-2024-35618 — High (CVSS 7.5): PingCAP TiDB v7.5.1 was discovered to contain a NULL pointer dereference via the component SortedRowContainer.
CVE-2022-34969 — High (CVSS 7.5): PingCAP TiDB v6.1.0 was discovered to contain a NULL pointer dereference.
CVE-2024-41434 — Medium (CVSS 4.3): PingCAP TiDB v8.1.0 was discovered to contain a buffer overflow via the component (*Column).GetDecimal. This allows…

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