What is CVE-2017-8358?

CVE-2017-8358 is a critical-severity vulnerability in Libreoffice, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 9.8/10. Published 2017-04-30.

How severe is CVE-2017-8358?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Buffer overflow in Libreoffice

CVE-2017-8358

LibreOffice before 2017-03-17 has an out-of-bounds write caused by a heap-based buffer overflow related to the ReadJPEG function in vcl/source/filter/jpeg/jpegc.cxx.

Vulnerability class: Buffer Overflow

Published 2017-04-30 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.021 (80.9th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 81st percentile — 80.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.021 · newest: 0.021 · change: 0.000

Affected products

Libreoffice

Weakness classification (CWE)

References

github.com/LibreOffice/core/commit/6e6e54f944a5ebb49e9110bdeff844d00a96c56c (Patch, Third Party Advisory, Issue Tracking)
bugs.chromium.org/p/oss-fuzz/issues/detail (Third Party Advisory, Issue Tracking)
www.securityfocus.com/bid/98395 (vdb-entry)

Frequently asked questions

What is CVE-2017-8358?: CVE-2017-8358 is a critical-severity vulnerability in Libreoffice, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 9.8/10. Published 2017-04-30.
How severe is CVE-2017-8358?: Critical severity. CVSS v3 base score is 9.8 out of 10.