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CVE-2018-18443

18
FAUCET Score

CVE-2018-18443 describes a memory leak vulnerability in OpenEXR version 2.3.0, specifically within the ThreadPool component of IlmBase/IlmThread/IlmThreadPool.cpp, as demonstrated by exrmultiview. This vulnerability has a CVSS score of 4.3 (Medium), indicating it can be exploited remotely with low attack complexity, requiring user interaction, and primarily leading to a denial of service. 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
2.3.0CPE matchmatch criteria
cpe:2.3:a:ilm:openexr:2.3.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

4.3MEDIUM

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
LOW
Exploitability Score
2.8
Impact Score
1.4
CvssVersion
3.0

Exploit Intelligence

EPSS Score
2.11%
Probability of exploitation in next 30 days
EPSS Percentile
79.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0211 is in the 90th percentile among its peer group of 26,219 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (1)

redhatvendor investigatingvia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: OpenEXR

Vendor Advisories (1)

redhatCVE-2018-18443Low

OpenEXR: Memory leak in ThreadPool in in IlmBase/IlmThread/IlmThreadPool.cpp

Oct 17, 2018

References

github.com / openexr/openexr/issues/350
ExploitThird Party Advisory
github.com / openexr/openexr/releases/tag/v2.4.0
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/5E2OZU4ZSF5W4ODBU4L547HX5A4WOBFV
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/IZN7WUH3SR6DSRODRB4SLFTBKP74FVC5