CVE-2018-20253
CVSS v3
7.8
HIGH
EPSS Score
4.0 %
exploit probability, as of 2026-09-25
CISA KEV
No
known exploited
Exploitation
—
SSVC status
Description
In WinRAR versions prior to and including 5.60, There is an out-of-bounds write vulnerability during parsing of a crafted LHA / LZH archive formats. Successful exploitation could lead to arbitrary code execution in the context of the current user.
Technical details
- Published
- 2019-02-13
Frequently asked questions
What is CVE-2018-20253?
In WinRAR versions prior to and including 5.60, There is an out-of-bounds write vulnerability during parsing of a crafted LHA / LZH archive formats. Successful exploitation could lead to arbitrary code execution in the context of the current user.
Is CVE-2018-20253 actively exploited?
Active exploitation of CVE-2018-20253 has not been confirmed. Its EPSS score was 4.0% on 2026-09-25, the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2018-20253?
CVE-2018-20253 has a CVSS v3 base score of 7.8 (HIGH severity).
Is CVE-2018-20253 affecting your environment?
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