How severe is CVE-2022-34038?

CVE-2022-34038 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-2022-34038 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (67th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-34038?

CVE-2022-34038 affects Etcd. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2022-34038?

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-2022-34038 published?

CVE-2022-34038 was published on 2023-08-22 and last updated on 2026-06-17.

CVE-2022-34038

CVE-2022-34038 is a high-severity vulnerability in Etcd 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-787.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 1% (67th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-787
Affected product: Etcd
Published: 2023-08-22
Last modified: 2026-06-17

Description

Etcd v3.5.4 allows remote attackers to cause a denial of service via function PageWriter.write in pagewriter.go. NOTE: the vendor's position is that this is not a vulnerability.

Frequently asked questions

What is CVE-2022-34038?: Etcd v3.5.4 allows remote attackers to cause a denial of service via function PageWriter.write in pagewriter.go. NOTE: the vendor's position is that this is not a vulnerability.
How severe is CVE-2022-34038?: CVE-2022-34038 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-2022-34038 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (67th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-34038?: CVE-2022-34038 affects Etcd. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2022-34038?: 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-2022-34038 published?: CVE-2022-34038 was published on 2023-08-22 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:etcd:etcd:3.5.4:*:*:*:*:*:*:*

More vulnerabilities in Etcd

CVE-2021-28235 — Critical (CVSS 9.8): Authentication vulnerability found in Etcd-io v.3.4.10 allows remote attackers to escalate privileges via the debug…
CVE-2026-33413 — High (CVSS 8.8): etcd is a distributed key-value store for the data of a distributed system. Prior to versions 3.4.42, 3.5.28, and…
CVE-2018-16886 — High (CVSS 8.1): etcd versions 3.2.x before 3.2.26 and 3.3.x before 3.3.11 are vulnerable to an improper authentication issue when…
CVE-2020-15112 — Medium (CVSS 6.5): In etcd before versions 3.3.23 and 3.4.10, it is possible to have an entry index greater then the number of entries in…
CVE-2020-15106 — Medium (CVSS 6.5): In etcd before versions 3.3.23 and 3.4.10, a large slice causes panic in decodeRecord method. The size of a record is…
CVE-2020-15113 — Medium (CVSS 5.7): In etcd before versions 3.3.23 and 3.4.10, certain directory paths are created (etcd data directory and the directory…

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