SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2017-9127

The quicktime_user_atoms_read_atom function in useratoms.c in libquicktime 1.2.4 allows remote attackers to cause a denial of service (heap-based buffer overflow and application crash) via a crafted mp4 file.

EXPLOITMEDIUM 6.5EPSS 5.10%

Does this matter?

A public exploit is published in Exploit-DB, so the technical barrier is gone even though the severity is medium and EPSS is 5.1%. Treat it as high on anything reachable from the internet.

Description

The quicktime_user_atoms_read_atom function in useratoms.c in libquicktime 1.2.4 allows remote attackers to cause a denial of service (heap-based buffer overflow and application crash) via a crafted mp4 file.

CVSS 3.0
6.5 MEDIUMCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
EPSS
5.10% probability · 92th percentile
Public exploits
1 in Exploit-DB · first 9 June 2017
CISA KEV
Not listed
Weakness
CWE-119
Affected
libquicktime/libquicktime
Source
cve@mitre.org
EPSS trend
0%5%10%27 October 2026: 5.10%27 October 202627 October 2026

EPSS 5.1% since 27 October 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

Public exploits (1)

Entries in Exploit-DB that cite this CVE. Links go to the Exploit-DB page and to the file in the public repository; nothing is hosted here. A verified tick means the Exploit-DB team confirmed the exploit works against the stated version.

EDB-IDTitleTypePublishedVerified
EDB-42148source ↗libquicktime 1.2.4 - Denial of Servicelinux · qflb.wudos9 June 2017no

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.