What’s Vulnerable › Vulnerabilities

CVE-2020-25741

• Severity: low (CVSS 3.2 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2020-10-02 · updated 2026-06-17
• Weakness: CWE-476

Description

fdctrl_write_data in hw/block/fdc.c in QEMU 5.0.0 has a NULL pointer dereference via a NULL block pointer for the current drive.

Affected products

• QEMU: 5.0.0

References

• http://www.openwall.com/lists/oss-security/2020/09/29/1
• https://lists.nongnu.org/archive/html/qemu-devel/2020-09/msg05295.html
• https://ruhr-uni-bochum.sciebo.de/s/NNWP2GfwzYKeKwE?path=%2Ffdc_nullptr1
• https://security.netapp.com/advisory/ntap-20201009-0005/
• http://www.openwall.com/lists/oss-security/2020/09/29/1
• https://lists.nongnu.org/archive/html/qemu-devel/2020-09/msg05295.html
• https://ruhr-uni-bochum.sciebo.de/s/NNWP2GfwzYKeKwE?path=%2Ffdc_nullptr1
• https://security.netapp.com/advisory/ntap-20201009-0005/

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