What is CVE-2017-14122?

CVE-2017-14122 is a critical-severity vulnerability in Rarlab Unrar, classified under Out-of-bounds Read. CVSS score: 9.1/10. Published 2017-09-03.

How severe is CVE-2017-14122?

Critical severity. CVSS v3 base score is 9.1 out of 10.

Out-of-bounds Read in Rarlab Unrar

CVE-2017-14122

unrar 0.0.1 (aka unrar-free or unrar-gpl) suffers from a stack-based buffer over-read in unrarlib.c, related to ExtrFile and stricomp.

Vulnerability class: Buffer Overflow

Published 2017-09-03 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H.

EPSS exploit prediction

EPSS: 0.018 (77.6th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 78th percentile — 77.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.018 · newest: 0.018 · change: 0.000

Affected products

Rarlab Unrar — versions 0.0.1
Debian Linux — versions 9.0

Weakness classification (CWE)

CWE-125 — Out-of-bounds Read

References

bugs.debian.org/874060 (Third Party Advisory, Issue Tracking)
www.openwall.com/lists/oss-security/2017/08/20/1 (Mailing List, Third Party Advisory)
lists.debian.org/debian-lts-announce/2021/02/msg00026.html (mailing-list, Mailing List, Third Party Advisory)

Frequently asked questions

What is CVE-2017-14122?: CVE-2017-14122 is a critical-severity vulnerability in Rarlab Unrar, classified under Out-of-bounds Read. CVSS score: 9.1/10. Published 2017-09-03.
How severe is CVE-2017-14122?: Critical severity. CVSS v3 base score is 9.1 out of 10.