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CVE-2019-15942

26
FAUCET Score

CVE-2019-15942 is a high-severity vulnerability affecting FFmpeg through version 4.2, specifically within the h2645_parse function due to mishandling of rbsp_buffer in libavcodec/h2645_parse.c. This flaw, categorized as a "Conditional jump or move depends on uninitialised value" (CWE-252), could lead to significant impacts on confidentiality, integrity, and availability. With a CVSS score of 8.8 (HIGH), it can be exploited remotely with low attack complexity, requiring user interaction. Despite its severity, there is currently no evidence of active exploitation, publicly available exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
<= 4.2CPE matchmatch criteria
cpe:2.3:a:ffmpeg:ffmpeg:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

8.8HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
2.02%
Probability of exploitation in next 30 days
EPSS Percentile
79.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0202 is in the 78th percentile among its peer group of 14,875 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.1 Security Researcher mentions.

Remediation

Vendor Advisories (1)

redhatCVE-2019-15942Low

ffmpeg: conditional jump or move depends on uninitialised value

Apr 18, 2020

References

lists.opensuse.org / opensuse-security-announce/2020-01/msg00012.html
Broken Link
security.gentoo.org / glsa/202007-58
Third Party Advisory
trac.ffmpeg.org / ticket/8093
ExploitThird Party Advisory