How severe is CVE-2018-11218?

CVE-2018-11218 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-2018-11218 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 59% (99th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-11218?

CVE-2018-11218 primarily affects Redislabs Redis. In total, 7 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2018-11218?

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-2018-11218 published?

CVE-2018-11218 was published on 2018-06-17 and last updated on 2026-06-17.

CVE-2018-11218

CVE-2018-11218 is a critical-severity vulnerability in Redislabs Redis with a CVSS 3.x base score of 9.8. Its EPSS exploit-prediction score of 59% places it in the 99th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-787.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 59% (99th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-787
Affected product: Redislabs Redis
Published: 2018-06-17
Last modified: 2026-06-17

Description

Memory Corruption was discovered in the cmsgpack library in the Lua subsystem in Redis before 3.2.12, 4.x before 4.0.10, and 5.x before 5.0 RC2 because of stack-based buffer overflows.

Frequently asked questions

What is CVE-2018-11218?: Memory Corruption was discovered in the cmsgpack library in the Lua subsystem in Redis before 3.2.12, 4.x before 4.0.10, and 5.x before 5.0 RC2 because of stack-based buffer overflows.
How severe is CVE-2018-11218?: CVE-2018-11218 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-2018-11218 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 59% (99th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-11218?: CVE-2018-11218 primarily affects Redislabs Redis. In total, 7 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2018-11218?: 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-2018-11218 published?: CVE-2018-11218 was published on 2018-06-17 and last updated on 2026-06-17.

References

Affected products (7)

cpe:2.3:a:redislabs:redis:*:*:*:*:*:*:*:*
cpe:2.3:a:redislabs:redis:5.0:rc1:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
cpe:2.3:a:oracle:communications_operations_monitor:3.4:*:*:*:*:*:*:*
cpe:2.3:a:oracle:communications_operations_monitor:4.0:*:*:*:*:*:*:*
cpe:2.3:a:redhat:openstack:10:*:*:*:*:*:*:*
cpe:2.3:a:redhat:openstack:13:*:*:*:*:*:*:*

More vulnerabilities in Redislabs Redis

CVE-2015-4335 — Critical (CVSS 10.0): Redis before 2.8.21 and 3.x before 3.0.2 allows remote attackers to execute arbitrary Lua bytecode via the eval command.
CVE-2018-11219 — Critical (CVSS 9.8): An Integer Overflow issue was discovered in the struct library in the Lua subsystem in Redis before 3.2.12, 4.x before…
CVE-2017-15047 — Critical (CVSS 9.8): The clusterLoadConfig function in cluster.c in Redis 4.0.2 allows attackers to cause a denial of service (out-of-bounds…
CVE-2016-8339 — Critical (CVSS 9.8): A buffer overflow in Redis 3.2.x prior to 3.2.4 causes arbitrary code execution when a crafted command is sent. An out…
CVE-2018-12326 — High (CVSS 8.4): Buffer overflow in redis-cli of Redis before 4.0.10 and 5.x before 5.0 RC3 allows an attacker to achieve code execution…
CVE-2020-14147 — High (CVSS 7.7): An integer overflow in the getnum function in lua_struct.c in Redis before 6.0.3 allows context-dependent attackers…

All CVEs affecting Redislabs Redis →

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