CVE-2018-10115

7 Zip vulnerability

CVSS

7.8

EPSS

4.7%

EPSS pct

91th

Exploited

No known

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.

Affected vendor

7 Zip

Affected product

7 Zip

CVSS vector

CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Weakness type (CWE)

CWE-665 — Improper Initialization
CWE-908 — Use of Uninitialized Resource

Published

2018-05-02

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable with local access, low attack complexity, requiring no privileges, user interaction. Successful exploitation leads to high impact to confidentiality, high impact to integrity, high impact to availability.

Its EPSS score of 4.7% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 91% of all scored CVEs.

Check your external exposure to CVE-2018-10115

Confirm whether 7 Zip 7 Zip is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2018-10115.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2018-10115

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2018-10115 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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