CVE-2017-1000460

In line libavcodec/h264dec.c:500 in libav(v13_dev0), ffmpeg(n3.4), chromium(56 prior Feb 13, 2017...

6.5 MediumFix available

In line libavcodec/h264dec.c:500 in libav(v13_dev0), ffmpeg(n3.4), chromium(56 prior Feb 13, 2017), the return value of init_get_bits is ignored and get_ue_golomb(&gb) is called on an uninitialized get_bits context, which causes a NULL deref exception.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: Required

What an attacker can affect

Confidentiality: None
Integrity: None
Availability: High

Exploit likelihood

0.49%Up 0.1 points since Apr 14, 2021

What each source reports

NVD Score used 6.5

Record: CVE-2017-1000460
CVSS 3.0: 6.5 MediumCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
CVSS 2.0: 4.3 MediumAV:N/AC:M/Au:N/C:N/I:N/A:P
Weakness: CWE-476
Updated: 2026-11-02

CVE List No score

Record: CVE-2017-1000460
Updated: 2026-11-02

EUVDEUVD-2017-1587 No score

Record: EUVD-2017-1587
Updated: 2026-11-03

GitHub AdvisoriesGHSA-m7gw-r3vf-gf9w 6.5

In line libavcodec/h264dec.c:500 in libav(v13_dev0), ffmpeg(n3.4), chromium(56 prior Feb 13, 2017...

Record: GHSA-m7gw-r3vf-gf9w
CVSS 3.0: 6.5 MediumCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Weakness: CWE-476
Updated: 2026-11-02

OSV 6.5

Record: CVE-2017-1000460
CVSS 3.0: 6.5 MediumCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Updated: 2026-11-06

OSVDEBIAN-CVE-2017-1000460 6.5

Record: DEBIAN-CVE-2017-1000460
CVSS 3.0: 6.5 MediumCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Updated: 2026-11-02

Affected products

Affected packages

Affected packages
Package	Affected	Fixed
`ffmpeg` Debian:12	before 7:3.1.1-1	7:3.1.1-1
`ffmpeg` Debian:13	before 7:3.1.1-1	7:3.1.1-1
`ffmpeg` Debian:14	before 7:3.1.1-1	7:3.1.1-1
`libav` Debian:8 From an advisory covering 5 CVEs	before 6:11.12-1~deb8u6, plus listed versions 6:11.11-1~deb8u16:11.12-1~deb8u16:11.12-1~deb8u26:11.12-1~deb8u36:11.12-1~deb8u4 Show 13 moreShow less 6:11.12-1~deb8u56:11.3-16:11.3-1+deb8u16:11.3-26:11.3-36:11.4-16:11.4-1~deb8u16:11.4-26:11.4-2+x32.16:11.6-1~deb8u16:11.7-1~deb8u16:11.8-1~deb8u16:11.9-1~deb8u1	6:11.12-1~deb8u6

History

History
Recorded	Changed	Sources
Nov 6, 2026	affected, facts
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2017-1000460 is a medium vulnerability (CVSS 6.5) in Ffmpeg, published January 3, 2018. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.49%, the 42nd percentile. Fixed in ffmpeg 7:3.1.1-1.