How severe is CVE-2016-8704?

CVE-2016-8704 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2016-8704 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 23% (97th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2016-8704?

CVE-2016-8704 affects Memcached. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2016-8704?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2016-8704 published?

CVE-2016-8704 was published on 2017-01-06 and last updated on 2026-06-17.

CVE-2016-8704

CVE-2016-8704 is a critical-severity vulnerability in Memcached with a CVSS 3.x base score of 9.8. Its EPSS exploit-prediction score of 23% places it in the 97th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-190.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 23% (97th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-190
Affected product: Memcached
Published: 2017-01-06
Last modified: 2026-06-17

Description

An integer overflow in the process_bin_append_prepend function in Memcached, which is responsible for processing multiple commands of Memcached binary protocol, can be abused to cause heap overflow and lead to remote code execution.

Frequently asked questions

What is CVE-2016-8704?: An integer overflow in the process_bin_append_prepend function in Memcached, which is responsible for processing multiple commands of Memcached binary protocol, can be abused to cause heap overflow and lead to remote code execution.
How severe is CVE-2016-8704?: CVE-2016-8704 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2016-8704 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 23% (97th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2016-8704?: CVE-2016-8704 affects Memcached. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2016-8704?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2016-8704 published?: CVE-2016-8704 was published on 2017-01-06 and last updated on 2026-06-17.

References

Affected products (1)

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

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