What’s Vulnerable › Vulnerabilities

CVE-2020-15859

• Severity: low (CVSS 3.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2020-07-21 · updated 2026-06-17
• Weakness: CWE-416

Description

QEMU 4.2.0 has a use-after-free in hw/net/e1000e_core.c because a guest OS user can trigger an e1000e packet with the data's address set to the e1000e's MMIO address.

Affected products

• Debian Linux: 9.0, 10.0
• QEMU: 4.2.0

References

• https://bugs.launchpad.net/qemu/+bug/1886362
• https://lists.debian.org/debian-lts-announce/2021/02/msg00024.html
• https://lists.debian.org/debian-lts-announce/2022/09/msg00008.html
• https://lists.gnu.org/archive/html/qemu-devel/2020-07/msg05304.html
• https://security.gentoo.org/glsa/202208-27
• https://www.openwall.com/lists/oss-security/2020/07/21/3
• https://bugs.launchpad.net/qemu/+bug/1886362
• https://lists.debian.org/debian-lts-announce/2021/02/msg00024.html
• https://lists.debian.org/debian-lts-announce/2022/09/msg00008.html
• https://lists.gnu.org/archive/html/qemu-devel/2020-07/msg05304.html
• https://security.gentoo.org/glsa/202208-27
• https://www.openwall.com/lists/oss-security/2020/07/21/3

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