What is CVE-2018-12418?

CVE-2018-12418 is a medium-severity vulnerability in Junrar Project, classified under Loop with Unreachable Exit Condition (Infinite Loop). CVSS score: 5.5/10. Published 2018-06-14.

How severe is CVE-2018-12418?

Medium severity. CVSS v3 base score is 5.5 out of 10.

Is CVE-2018-12418 known to be exploited?

21 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in Junrar Project

CVE-2018-12418

Archive.java in Junrar before 1.0.1, as used in Apache Tika and other products, is affected by a denial of service vulnerability due to an infinite loop when handling corrupt RAR files.

Published 2018-06-14 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.012 (66.7th percentile), scored 2026-10-01.

Low probability of exploitation in the next 30 days, but still tracked. 67th percentile — 66.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.012 · newest: 0.012 · change: 0.000

Affected products

Junrar Project

Weakness classification (CWE)

CWE-835 — Loop with Unreachable Exit Condition (Infinite Loop)

Public proof-of-concept exploits

References

github.com/junrar/junrar/pull/8 (Third Party Advisory)
github.com/junrar/junrar/commit/ad8d0ba8e155630da8a1215cee3f253e0af45817 (Patch, Third Party Advisory)

Frequently asked questions

What is CVE-2018-12418?: CVE-2018-12418 is a medium-severity vulnerability in Junrar Project, classified under Loop with Unreachable Exit Condition (Infinite Loop). CVSS score: 5.5/10. Published 2018-06-14.
How severe is CVE-2018-12418?: Medium severity. CVSS v3 base score is 5.5 out of 10.
Is CVE-2018-12418 known to be exploited?: 21 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.