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CVE-2019-9544

22
FAUCET Score

CVE-2019-9544 is an out-of-bounds write vulnerability affecting Bento4 versions up to 1.5.1-628. Specifically, the AP4_CttsTableEntry::AP4_CttsTableEntry() function in Core/Ap4Array.h is susceptible to a crafted file, such as one sent to the mp42hls binary. This vulnerability carries a high CVSS score of 8.8, indicating a critical risk due to its network-based attack vector, low attack complexity, and potential for high impact on confidentiality, integrity, and availability, including denial of service (segmentation fault) and possibly other unspecified effects. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

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
1.61%
Probability of exploitation in next 30 days
EPSS Percentile
73.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0161 is in the 73rd 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/374
ExploitThird Party Advisory
research.loginsoft.com / bugs/out-of-bounds-write-in-function-ap4_cttstableentryap4_cttstableentry-bento4-1-5-1-0
ExploitThird Party Advisory