CVE-2018-3973
CVSS v3
7.8
HIGH
EPSS Score
1.9 %
exploit probability, as of 2026-09-25
CISA KEV
No
known exploited
Exploitation
—
SSVC status
Description
An exploitable out of bounds write exists in the CAL parsing functionality of Canvas Draw version 5.0.0. A specially crafted CAL image processed via the application can lead to an out of bounds write overwriting arbitrary data. An attacker can deliver a PCX image to trigger this vulnerability and gain code execution.
Technical details
- Published
- 2019-02-06
Frequently asked questions
What is CVE-2018-3973?
An exploitable out of bounds write exists in the CAL parsing functionality of Canvas Draw version 5.0.0. A specially crafted CAL image processed via the application can lead to an out of bounds write overwriting arbitrary data. An attacker can deliver a PCX image to trigger this vulnerability and gain code execution.
Is CVE-2018-3973 actively exploited?
Active exploitation of CVE-2018-3973 has not been confirmed. Its EPSS score was 1.9% on 2026-09-25, the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2018-3973?
CVE-2018-3973 has a CVSS v3 base score of 7.8 (HIGH severity).
Is CVE-2018-3973 affecting your environment?
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