The vmnc decoder in the gstreamer does not initialize the render canvas, which allows remote attackers to obtain sensitive information as demonstrated by thumbnailing a simple 1 frame vmnc movie that does not draw to the allocated render canvas.
CVE-2016-9446
Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2022-05-13. NVD baseline CVSS 7.5; sources differ by 0.0.
- High severity, but no confirmed exploitation yet
A fix is available — apply it.
- CVSS v3
- 7.5
- EG Score
- 7.5(medium)
- EG Risk
- 40(Track)EG Risk 40/100SSVC: Track
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity75% × 45%Exploitation4% × 40%Automatability30% × 15%Action: Routine — remediate on your standard cadence. - EPSS PROB
- 4%
- EPSS %ILE
- 89%
- KEV
- Not listed
Published
January 23, 2017
Last Modified
June 17, 2026
References (18)
- security@opentexthttp://www.openwall.com/lists/oss-security/2016/11/18/12
- security@opentexthttp://www.openwall.com/lists/oss-security/2016/11/18/13
- security@opentexthttp://www.securityfocus.com/bid/94423
- security@opentexthttps://access.redhat.com/errata/RHSA-2017:2060
- security@opentexthttps://bugzilla.gnome.org/show_bug.cgi?id=774533
- security@opentexthttps://cgit.freedesktop.org/gstreamer/gst-plugins-bad/commit/gst/vmnc/vmncdec.c?id=4cb1bcf1422bbcd79c0f683edb7ee85e3f7a31fe
- security@opentexthttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UM7IXFGHV66KNWGWG6ZBDNKXD2UJL2VQ/
- security@opentexthttps://scarybeastsecurity.blogspot.de/2016/11/0day-poc-risky-design-decisions-in.html
- security@opentexthttps://security.gentoo.org/glsa/201705-10
- af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2016/11/18/12
- af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2016/11/18/13
- af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/94423
- af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/errata/RHSA-2017:2060
- af854a3a-2127-422b-91ae-364da2661108https://bugzilla.gnome.org/show_bug.cgi?id=774533
- af854a3a-2127-422b-91ae-364da2661108https://cgit.freedesktop.org/gstreamer/gst-plugins-bad/commit/gst/vmnc/vmncdec.c?id=4cb1bcf1422bbcd79c0f683edb7ee85e3f7a31fe
Patch Availability(1)
| Vendor / Ecosystem | Fixed in / Patch | Released | Source |
|---|---|---|---|
| redhat | orc-0:0.4.26-1.el7 | 2017-08-01 | redhat |
Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.
Affected Packages
(7 across 6 ecosystems)
Debian:8(2)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| gst-plugins-bad0.10 | 0.10.23-7.4, 0.10.23-7.4+deb8u1 | 0.10.23-7.4+deb8u2 | — |
| gst-plugins-bad1.0 | 1.4.4-2.1 | 1.4.4-2.1+deb8u1 | — |
Debian:11(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| gst-plugins-bad1.0 | — | 1.10.1-1 | — |
Debian:12(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| gst-plugins-bad1.0 | — | 1.10.1-1 | — |
Debian:13(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| gst-plugins-bad1.0 | — | 1.10.1-1 | — |
Debian:14(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| gst-plugins-bad1.0 | — | 1.10.1-1 | — |
Debian:7(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| gst-plugins-bad0.10 | 0.10.23-7.1, 0.10.23-7.1+deb7u1, 0.10.23-7.1+deb7u2 | 0.10.23-7.1+deb7u3 | — |
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
All Vendor Advisories
(1)
Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.
Data Freshness Timeline
(refreshed 6× in last 7d / 20× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
Showing the most recent 100 of 142 total refreshes for this CVE.
- 2026-09-18 19:22 UTCEPSS rescore
- 2026-09-18 16:36 UTCOSV refresh
- 2026-09-17 19:22 UTCEPSS rescore
- 2026-09-16 05:05 UTCEPSS rescore
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- 2026-09-01 03:31 UTCEPSS rescore
- 2026-08-30 20:08 UTCOSV refresh
- 2026-08-28 21:35 UTCEPSS rescore
- 2026-08-27 14:20 UTCEPSS rescore
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- 2026-08-15 01:25 UTCEPSS rescore
- 2026-08-14 06:59 UTCOSV refresh
- 2026-08-12 13:46 UTCEPSS rescore
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- 2026-08-09 13:42 UTCEPSS rescore
- 2026-08-08 16:32 UTCEPSS rescore
- 2026-08-07 16:22 UTCEPSS rescore
- 2026-08-06 13:42 UTCEPSS rescore
- 2026-08-05 19:12 UTCEPSS rescore
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- 2026-08-01 04:11 UTCEPSS rescore
- 2026-07-30 16:24 UTCEPSS rescore
- 2026-07-30 01:26 UTCEPSS rescore
- 2026-07-30 01:26 UTCEPSS rescore
- 2026-07-29 14:07 UTCOSV refresh
- 2026-07-28 15:31 UTCEPSS rescore
- 2026-07-26 14:50 UTCEPSS rescore
- 2026-07-25 14:13 UTCEPSS rescore
- 2026-07-24 14:13 UTCEPSS rescore
- 2026-07-23 14:15 UTCEPSS rescore
- 2026-07-23 01:24 UTCEG score recompute
- 2026-07-22 22:04 UTCEG score recompute
- 2026-07-22 14:04 UTCEPSS rescore
- 2026-07-21 15:21 UTCEPSS rescore
- 2026-07-21 15:21 UTCEPSS rescore
- 2026-07-20 17:04 UTCEPSS rescore
- 2026-07-19 14:28 UTCEPSS rescore
- 2026-07-19 14:28 UTCEPSS rescore
- 2026-07-19 02:26 UTCEPSS rescore
- 2026-07-19 02:26 UTCEPSS rescore
- 2026-07-18 10:00 UTCEPSS rescore
- 2026-07-18 10:00 UTCEPSS rescore
- 2026-07-16 16:59 UTCEPSS rescore
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- 2026-07-15 16:54 UTCEPSS rescore
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- 2026-07-15 01:56 UTCEPSS rescore
- 2026-07-13 22:26 UTCEPSS rescore
- 2026-07-13 06:09 UTCEPSS rescore
- 2026-07-12 05:43 UTCEPSS rescore
- 2026-07-12 05:43 UTCEPSS rescore
- 2026-07-12 04:41 UTCOSV refresh
- 2026-07-11 08:24 UTCEPSS rescore
- 2026-07-09 19:06 UTCEPSS rescore
- 2026-07-08 15:10 UTCEPSS rescore
- 2026-07-07 13:42 UTCEPSS rescore
- 2026-07-06 16:24 UTCEPSS rescore
- 2026-07-06 16:24 UTCEPSS rescore
- 2026-07-06 02:20 UTCEPSS rescore
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- 2026-07-04 06:28 UTCEPSS rescore
- 2026-07-01 15:02 UTCEPSS rescore
- 2026-06-30 23:19 UTCEPSS rescore
- 2026-06-30 23:19 UTCEPSS rescore
- 2026-06-29 14:03 UTCEPSS rescore
- 2026-06-28 14:04 UTCEPSS rescore
- 2026-06-28 04:53 UTCEPSS rescore
- 2026-06-27 03:05 UTCEPSS rescore
- 2026-06-25 13:47 UTCEPSS rescore
- 2026-06-24 14:02 UTCEPSS rescore
- 2026-06-23 21:30 UTCEPSS rescore
- 2026-06-23 10:58 UTCOSV refresh
- 2026-06-22 14:23 UTCEPSS rescore
- 2026-06-21 01:57 UTCEPSS rescore
- 2026-06-21 01:57 UTCEPSS rescore
- 2026-06-18 17:50 UTCEPSS rescore
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- 2026-06-15 17:45 UTCEPSS rescore
- 2026-06-14 23:14 UTCEPSS rescore
- 2026-06-14 23:14 UTCEPSS rescore
Frequently asked(5)
What is CVE-2016-9446?
When was CVE-2016-9446 disclosed?
Is CVE-2016-9446 actively exploited?
What is the CVSS score of CVE-2016-9446?
How do I remediate CVE-2016-9446?
Dependency Blast Radius
See which npm, PyPI, Go, and Maven packages are affected by CVE-2016-9446
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