CVE-2018-3847
CVSS v3
8.8
HIGH
EPSS Score
2.8 %
exploit probability, as of 2026-09-25
CISA KEV
No
known exploited
Exploitation
—
SSVC status
Description
Multiple exploitable buffer overflow vulnerabilities exist in image parsing functionality of the CFITSIO library version 3.42. Specially crafted images parsed via the library, can cause a stack-based buffer overflow overwriting arbitrary data. An attacker can deliver an FIT image to trigger this vulnerability and potentially gain code execution.
Technical details
- Published
- 2018-08-01
Frequently asked questions
What is CVE-2018-3847?
Multiple exploitable buffer overflow vulnerabilities exist in image parsing functionality of the CFITSIO library version 3.42. Specially crafted images parsed via the library, can cause a stack-based buffer overflow overwriting arbitrary data. An attacker can deliver an FIT image to trigger this vulnerability and potentially gain code execution.
Is CVE-2018-3847 actively exploited?
Active exploitation of CVE-2018-3847 has not been confirmed. Its EPSS score was 2.8% on 2026-09-25, the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2018-3847?
CVE-2018-3847 has a CVSS v3 base score of 8.8 (HIGH severity).
Is CVE-2018-3847 affecting your environment?
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