What is CVE-2018-10392?

CVE-2018-10392 is a high-severity vulnerability in Xiph.org Libvorbis, classified under Out-of-bounds Read. CVSS score: 8.8/10. Published 2018-04-26.

How severe is CVE-2018-10392?

High severity. CVSS v3 base score is 8.8 out of 10.

Is CVE-2018-10392 known to be exploited?

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

Out-of-bounds Read in Xiph.org Libvorbis

CVE-2018-10392

mapping0_forward in mapping0.c in Xiph.Org libvorbis 1.3.6 does not validate the number of channels, which allows remote attackers to cause a denial of service (heap-based buffer overflow or over-read) or possibly have unspecified other impact via a crafted file.

Vulnerability class: Buffer Overflow

Published 2018-04-26 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.033 (88.6th percentile), scored 2026-11-01.

Low probability of exploitation in the next 30 days, but still tracked. 89th percentile — 88.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.033 · newest: 0.033 · change: -0.000

Affected products

Xiph.org Libvorbis — versions 1.3.6
Debian Linux — versions 8.0, 9.0
Red Hat Enterprise Linux — versions 8.0
Red Hat Enterprise Linux Eus — versions 8.1, 8.2, 8.4
Red Hat Enterprise Linux Server Aus — versions 8.2, 8.4
Red Hat Enterprise Linux Server Tus — versions 8.2, 8.4

Weakness classification (CWE)

Public proof-of-concept exploits

andir/nixos-issue-db-example

References

gitlab.xiph.org/xiph/vorbis/issues/2335 (Exploit, Issue Tracking, Vendor Advisory)
access.redhat.com/errata/RHSA-2019:3703 (vendor-advisory, Third Party Advisory)
lists.debian.org/debian-lts-announce/2019/11/msg00031.html (mailing-list, Mailing List, Third Party Advisory)
security.gentoo.org/glsa/202003-36 (vendor-advisory, Third Party Advisory)
lists.debian.org/debian-lts-announce/2021/11/msg00023.html (mailing-list, Mailing List, Third Party Advisory)

Frequently asked questions

What is CVE-2018-10392?: CVE-2018-10392 is a high-severity vulnerability in Xiph.org Libvorbis, classified under Out-of-bounds Read. CVSS score: 8.8/10. Published 2018-04-26.
How severe is CVE-2018-10392?: High severity. CVSS v3 base score is 8.8 out of 10.
Is CVE-2018-10392 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.