CVSS v3
8.8
HIGH
EPSS Score
3.5 %
exploit probability, as of 2026-09-25
CISA KEV
No
known exploited
Exploitation
—
SSVC status
Description
An exploitable code execution vulnerability exists in the XCF image rendering functionality of SDL2_image-2.0.3. A specially crafted XCF image can cause a heap overflow, resulting in code execution. An attacker can display a specially crafted image to trigger this vulnerability.
Technical details
- Published
- 2018-11-01
Frequently asked questions
What is CVE-2018-3977?
An exploitable code execution vulnerability exists in the XCF image rendering functionality of SDL2_image-2.0.3. A specially crafted XCF image can cause a heap overflow, resulting in code execution. An attacker can display a specially crafted image to trigger this vulnerability.
Is CVE-2018-3977 actively exploited?
Active exploitation of CVE-2018-3977 has not been confirmed. Its EPSS score was 3.5% on 2026-09-25, the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2018-3977?
CVE-2018-3977 has a CVSS v3 base score of 8.8 (HIGH severity).
Is CVE-2018-3977 affecting your environment?
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