SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2017-18242

The apply_dependent_coupling function in libavcodec/aacdec.c in Libav 12.2 allows remote attackers to cause a denial of service (out-of-bounds read) via a crafted aac file.

MEDIUM 6.5EPSS 1.17%

Does this matter?

Lower severity and a low EPSS score (1.17%). Track it; it rarely justifies an emergency change on its own.

Description

The apply_dependent_coupling function in libavcodec/aacdec.c in Libav 12.2 allows remote attackers to cause a denial of service (out-of-bounds read) via a crafted aac 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
1.17% probability · 67th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Weakness
CWE-125
Affected
libav/libav
Source
cve@mitre.org
EPSS trend
0%3%5%27 October 2026: 1.17%27 October 202627 October 2026

EPSS 1.2% since 27 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

References

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