CVE-2018-16376: uclouvain openjpeg Out-of-bounds Write
Vulnerability summary
CVE-2018-16376 is a high (CVSS 8.8) Out-of-bounds Write vulnerability in uclouvain openjpeg. EPSS estimates a 2.84% chance of exploitation in the next 30 days, higher than 86.6% of scored vulnerabilities.
Not severe (CVSS 8.8, network access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 3 · Related 3Timeline
- 03-09-2018PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
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 metrics
4 scores · 3 sources · 2 versions- OSV · UbuntuEcosystem advisory · calculated8.8HighCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated8.8HighCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS trend
Probability
2.84%
Chance of exploitation in the next 30 days
Percentile
87%
Versus all other CVEs
30-day change
Increase +0.19 pp
From 2.65% on 04-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Known conditions: network-reachable, no authentication, user interaction (CVSS vector). Other conditions: not stated in public data.
Debian1 product
- openjpeg2All versions (No fix recorded)
Ubuntu1 product
- openjpegAll versions (No fix recorded)
Uclouvain1 product
- openjpeg2.3.0
3 vendors · 3 products
