CVE-2011-3946

mediumpriority · track · 29EPSS 0.057 · 93 %ileEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

5.71% (93rd) EPSS

CVSS 6.8 · medium

Is it mine?

52 products

Check your exposure

Who says so?

2 sources

enisa_euvd · nvd

EPSS · scored 2026-10-27

The ff_h264_decode_sei function in libavcodec/h264_sei.c in FFmpeg before 0.10 allows remote attackers to have an unspecified impact via crafted Supplemental enhancement information (SEI) data, which triggers an infinite loop.

cvss

Technical severity, 0–10. One row per scoring source.

6.8

010

base score 0–10 · higher = more severe · hover a vector to decode

v2.06.8mediumAV:N/AC:M/Au:N/C:P/I:P/A:Pprimary · NVD / NIST USexploitability 8.6 · impact 6.4

v2.05.8mediumAV:N/AC:M/Au:N/C:P/I:P/A:P/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-399USprimary

affected products (52)

Products and version ranges known to be affected.

n/a n/a≤ n/aenisa_euvdEU
ffmpeg ffmpeg≤ 0.9.1nvdUScpe:2.3:a:ffmpeg:ffmpeg:*:*:*:*:*:*:*:*
ffmpeg ffmpeg= 0.3nvdUScpe:2.3:a:ffmpeg:ffmpeg:*:*:*:*:*:*:*:*
ffmpeg ffmpeg= 0.3.1nvdUScpe:2.3:a:ffmpeg:ffmpeg:*:*:*:*:*:*:*:*
ffmpeg ffmpeg= 0.3.2nvdUScpe:2.3:a:ffmpeg:ffmpeg:*:*:*:*:*:*:*:*
ffmpeg ffmpeg= 0.3.3nvdUScpe:2.3:a:ffmpeg:ffmpeg:*:*:*:*:*:*:*:*
ffmpeg ffmpeg= 0.3.4nvdUScpe:2.3:a:ffmpeg:ffmpeg:*:*:*:*:*:*:*:*
ffmpeg ffmpeg= 0.4.0nvdUScpe:2.3:a:ffmpeg:ffmpeg:*:*:*:*:*:*:*:*
ffmpeg ffmpeg= 0.4.2nvdUScpe:2.3:a:ffmpeg:ffmpeg:*:*:*:*:*:*:*:*
ffmpeg ffmpeg= 0.4.3nvdUScpe:2.3:a:ffmpeg:ffmpeg:*:*:*:*:*:*:*:*
ffmpeg ffmpeg= 0.4.4nvdUScpe:2.3:a:ffmpeg:ffmpeg:*:*:*:*:*:*:*:*
ffmpeg ffmpeg= 0.4.5nvdUScpe:2.3:a:ffmpeg:ffmpeg:*:*:*:*:*:*:*:*
ffmpeg ffmpeg= 0.4.6nvdUScpe:2.3:a:ffmpeg:ffmpeg:*:*:*:*:*:*:*:*
ffmpeg ffmpeg= 0.4.7nvdUScpe:2.3:a:ffmpeg:ffmpeg:*:*:*:*:*:*:*:*
ffmpeg ffmpeg= 0.4.8nvdUScpe:2.3:a:ffmpeg:ffmpeg:*:*:*:*:*:*:*:*
ffmpeg ffmpeg= 0.4.9nvdUScpe:2.3:a:ffmpeg:ffmpeg:*:*:*:*:*:*:*:*
ffmpeg ffmpeg= 0.5nvdUScpe:2.3:a:ffmpeg:ffmpeg:*:*:*:*:*:*:*:*
ffmpeg ffmpeg= 0.5.1nvdUScpe:2.3:a:ffmpeg:ffmpeg:*:*:*:*:*:*:*:*
ffmpeg ffmpeg= 0.5.2nvdUScpe:2.3:a:ffmpeg:ffmpeg:*:*:*:*:*:*:*:*
ffmpeg ffmpeg= 0.5.3nvdUScpe:2.3:a:ffmpeg:ffmpeg:*:*:*:*:*:*:*:*

showing 20 of 52

also known as (2)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

enisa_euvd nvd NVD CVE.org MITRE

published 2013-12-09modified 2026-06-16

related (3,726)

Related entries.

ID	severity	EPSS	exploitable	published
CVE-2018-0180US	medium5.9OT critical	4.93% (92nd)	KEV	2018-03-28
Multiple vulnerabilities in the Login Enhancements (Login Block) feature of Cisco IOS Software could allow an unauthenticated, remote attacker to trigger a reload of an affected sy…
CVE-2018-0179US	medium5.9OT critical	4.93% (92nd)	KEV	2018-03-28
Multiple vulnerabilities in the Login Enhancements (Login Block) feature of Cisco IOS Software could allow an unauthenticated, remote attacker to trigger a reload of an affected sy…
CVE-2018-0161US	medium6.3OT critical	4.12% (91st)	KEV	2018-03-28
A vulnerability in the Simple Network Management Protocol (SNMP) subsystem of Cisco IOS Software running on certain models of Cisco Catalyst Switches could allow an authenticated,…
CVE-2018-0156US	high7.5OT critical	9.36% (95th)	KEV	2018-03-28
A vulnerability in the Smart Install feature of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to trigger a reload of an affected devi…
CVE-2018-0154US	high7.5OT critical	7.07% (94th)	KEV	2018-03-28
A vulnerability in the crypto engine of the Cisco Integrated Services Module for VPN (ISM-VPN) running Cisco IOS Software could allow an unauthenticated, remote attacker to cause a…

+3721 more

references (4)

External citations — patches, advisories, analysis.

scry

Attackers weaponise vulnerabilities like this against internet-exposed services. See what is exposed on your perimeter with a free passive scan.

Free scan