How severe is CVE-2023-46852?

CVE-2023-46852 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-2023-46852 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (51st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-46852?

CVE-2023-46852 affects Memcached. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-46852?

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-2023-46852 published?

CVE-2023-46852 was published on 2023-10-27 and last updated on 2026-06-17.

CVE-2023-46852

CVE-2023-46852 is a high-severity vulnerability in Memcached 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-120.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 1% (51st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-120
Affected product: Memcached
Published: 2023-10-27
Last modified: 2026-06-17

Description

In Memcached before 1.6.22, a buffer overflow exists when processing multiget requests in proxy mode, if there are many spaces after the "get" substring.

Frequently asked questions

What is CVE-2023-46852?: In Memcached before 1.6.22, a buffer overflow exists when processing multiget requests in proxy mode, if there are many spaces after the "get" substring.
How severe is CVE-2023-46852?: CVE-2023-46852 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-2023-46852 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (51st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-46852?: CVE-2023-46852 affects Memcached. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-46852?: 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-2023-46852 published?: CVE-2023-46852 was published on 2023-10-27 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:memcached:memcached:*:*:*:*:*:*:*:*

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