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CVE-2019-8378

22
FAUCET Score

CVE-2019-8378 is a heap-based buffer over-read vulnerability in Bento4 versions 1.5.1-628, specifically within the AP4_BitStream::ReadBytes() function. This flaw can be triggered by processing a specially crafted file with the aac2mp4 binary, affecting axiosys bento4 products. It carries a high CVSS score of 8.8, indicating a severe risk due to its network-based attack vector, low attack complexity, and potential for a complete denial of service (segmentation fault) or other unspecified impacts. Currently, there is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
1.5.1-628CPE matchmatch criteria
cpe:2.3:a:axiosys:bento4:1.5.1-628:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

8.8HIGH

CVSS:3.0/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
3.0

Exploit Intelligence

EPSS Score
1.60%
Probability of exploitation in next 30 days
EPSS Percentile
73.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0160 is in the 72nd percentile among its peer group of 14,875 CVEs.

Social Chatter

No social media mentions found for this CVE.

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

Remediation records are not available for this CVE.

References

github.com / axiomatic-systems/Bento4/issues/363
ExploitThird Party Advisory
research.loginsoft.com / bugs/a-heap-buffer-overflow-vulnerability-in-the-function-ap4_bitstreamreadbytes-bento4-1-5-1-628
ExploitThird Party Advisory