What is CVE-2015-1239?

CVE-2015-1239 is a medium-severity vulnerability in Google Chrome, classified under Double Free. CVSS score: 6.5/10. Published 2017-10-18.

How severe is CVE-2015-1239?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Is CVE-2015-1239 known to be exploited?

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

Double Free in Google Chrome

CVE-2015-1239

Double free vulnerability in the j2k_read_ppm_v3 function in OpenJPEG before r2997, as used in PDFium in Google Chrome, allows remote attackers to cause a denial of service (process crash) via a crafted PDF.

Vulnerability class: Double Free

Published 2017-10-18 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.010 (62.5th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 63rd percentile — 62.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.010 · newest: 0.010 · change: 0.000

Affected products

Weakness classification (CWE)

CWE-415 — Double Free

Public proof-of-concept exploits

References

lists.debian.org/debian-lts-announce/2018/07/msg00025.html (mailing-list, Third Party Advisory)
bugs.chromium.org/p/chromium/issues/detail (Exploit)
bugs.chromium.org/p/chromium/issues/detail (Exploit)

Frequently asked questions

What is CVE-2015-1239?: CVE-2015-1239 is a medium-severity vulnerability in Google Chrome, classified under Double Free. CVSS score: 6.5/10. Published 2017-10-18.
How severe is CVE-2015-1239?: Medium severity. CVSS v3 base score is 6.5 out of 10.
Is CVE-2015-1239 known to be exploited?: 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.