What’s Vulnerable › Vulnerabilities

CVE-2018-3847

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.8% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2018-08-01 · updated 2026-06-17
• Weakness: CWE-787

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.

Affected products

• HEASARC cfitsio: 3.42

References

• https://security.gentoo.org/glsa/202101-24
• https://www.talosintelligence.com/vulnerability_reports/TALOS-2018-0530
• https://security.gentoo.org/glsa/202101-24
• https://www.talosintelligence.com/vulnerability_reports/TALOS-2018-0530

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