How severe is CVE-2018-10115?

CVE-2018-10115 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2018-10115 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (91st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-10115?

CVE-2018-10115 affects 7-zip. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-10115?

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-2018-10115 published?

CVE-2018-10115 was published on 2018-05-02 and last updated on 2026-06-17.

CVE-2018-10115

CVE-2018-10115 is a high-severity vulnerability in 7-zip with a CVSS 3.x base score of 7.8. 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-665.

Key facts

Severity: High (CVSS 3.x base score 7.8)
CVSS v2: 6.8
EPSS exploit prediction: 5% (91st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-665
Affected product: 7-zip
Published: 2018-05-02
Last modified: 2026-06-17

Description

Incorrect initialization logic of RAR decoder objects in 7-Zip 18.03 and before can lead to usage of uninitialized memory, allowing remote attackers to cause a denial of service (segmentation fault) or execute arbitrary code via a crafted RAR archive.

Frequently asked questions

What is CVE-2018-10115?: Incorrect initialization logic of RAR decoder objects in 7-Zip 18.03 and before can lead to usage of uninitialized memory, allowing remote attackers to cause a denial of service (segmentation fault) or execute arbitrary code via a crafted RAR archive.
How severe is CVE-2018-10115?: CVE-2018-10115 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2018-10115 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (91st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-10115?: CVE-2018-10115 affects 7-zip. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-10115?: 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-2018-10115 published?: CVE-2018-10115 was published on 2018-05-02 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:7-zip:7-zip:*:*:*:*:*:*:*:*

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