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CVE-2021-20181
🗓️ 13 May 2021 15:24:15Reported by Alpine Linux Development TeamType 
alpinelinux🔗 security.alpinelinux.org👁 47 Views
| Reporter | Title | Published | Views | Family All 111 |
|---|---|---|---|---|
 | Astra Linux – Vulnerability in Qemu | 20 May 202605:53 | – | astralinux |
 | The vulnerability of the 9pfs server emulator’s hardware emulation implementation, based on QEMU, arises from the use of memory after it is freed. This allows a perpetrator to gain access to confidential data, compromise its integrity, and cause service failures. | 2 Nov 202100:00 | – | bdu_fstec |
 | CVE-2021-20181 affecting package qemu-kvm 4.2.0-48 | 8 Jul 202121:56 | – | cbl_mariner |
 | CVE-2021-20181 | 24 Oct 202107:38 | – | circl |
 | QEMU 竞争条件问题漏洞 | 8 Feb 202100:00 | – | cnnvd |
 | QEMU competitive conditions loophole (CNVD-2021-39777) | 8 Mar 202100:00 | – | cnvd |
 | CVE-2021-20181 | 13 May 202115:24 | – | cve |
 | CVE-2021-20181 | 13 May 202115:24 | – | cvelist |
 | [SECURITY] [DLA 2560-1] qemu security update | 18 Feb 202116:57 | – | debian |
| [SECURITY] [DLA 3099-1] qemu security update | 5 Sep 202203:28 | – | debian |
10
| OS | OS Version | Architecture | Package | Package Version | Filename |
|---|---|---|---|---|---|
| Alpine Linux | any | any | qemu | 6.0.0-r1 | qemu-6.0.0-r1.apk |
| Alpine Linux | 3.16 | any | qemu | 6.0.0-r1 | qemu-6.0.0-r1.apk |
| Alpine Linux | 3.17 | any | qemu | 6.0.0-r1 | qemu-6.0.0-r1.apk |
| Alpine Linux | 3.18 | any | qemu | 6.0.0-r1 | qemu-6.0.0-r1.apk |
| Alpine Linux | 3.19 | any | qemu | 6.0.0-r1 | qemu-6.0.0-r1.apk |
| Alpine Linux | 3.20 | any | qemu | 6.0.0-r1 | qemu-6.0.0-r1.apk |
| Alpine Linux | 3.21 | any | qemu | 6.0.0-r1 | qemu-6.0.0-r1.apk |
| Alpine Linux | 3.22 | any | qemu | 6.0.0-r1 | qemu-6.0.0-r1.apk |
| Alpine Linux | 3.23 | any | qemu | 6.0.0-r1 | qemu-6.0.0-r1.apk |
| Alpine Linux | 3.24 | any | qemu | 6.0.0-r1 | qemu-6.0.0-r1.apk |
10
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17 Jun 2026 03:33Current
7.3High risk
Vulners AI Score7.3
CVSS 26.9
CVSS 3.17.5
EPSS0.00317