How severe is CVE-2023-30636?

CVE-2023-30636 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-2023-30636 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (57th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-30636?

CVE-2023-30636 affects Tikv. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-30636?

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-2023-30636 published?

CVE-2023-30636 was published on 2023-04-13 and last updated on 2026-06-17.

CVE-2023-30636

CVE-2023-30636 is a high-severity vulnerability in Tikv 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-770.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 1% (57th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-770
Affected product: Tikv
Published: 2023-04-13
Last modified: 2026-06-17

Description

TiKV 6.1.2 allows remote attackers to cause a denial of service (fatal error, with RpcStatus UNAVAILABLE for "not leader") upon an attempt to start a node in a situation where the context deadline is exceeded

Frequently asked questions

What is CVE-2023-30636?: TiKV 6.1.2 allows remote attackers to cause a denial of service (fatal error, with RpcStatus UNAVAILABLE for "not leader") upon an attempt to start a node in a situation where the context deadline is exceeded
How severe is CVE-2023-30636?: CVE-2023-30636 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-2023-30636 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (57th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-30636?: CVE-2023-30636 affects Tikv. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-30636?: 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-2023-30636 published?: CVE-2023-30636 was published on 2023-04-13 and last updated on 2026-06-17.

References

https://github.com/tikv/tikv/issues/14517

Affected products (1)

cpe:2.3:a:tikv:tikv:6.1.2:*:*:*:*:*:*:*

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