SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2018-16376

A heap-based buffer overflow was discovered in the function t2_encode_packet in lib/openmj2/t2.c.

HIGH 8.8EPSS 2.84%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (2.84%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

An issue was discovered in OpenJPEG 2.3.0. A heap-based buffer overflow was discovered in the function t2_encode_packet in lib/openmj2/t2.c. The vulnerability causes an out-of-bounds write, which may lead to remote denial of service or possibly unspecified other impact.

CVSS 3.0
8.8 HIGHCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS
2.84% probability · 87th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Weakness
CWE-787
Affected
uclouvain/openjpeg
Source
cve@mitre.org
EPSS trend
0%3%5%27 October 2026: 2.84%27 October 202627 October 2026

EPSS 2.8% 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.

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