CVE-2020-29443

Name: CVE-2020-29443
Creator: NVD / NIST
Published: 2021-01-26T18:15:51.85+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

LOWCVSS 3.9/10EPSS 0.37%

Last modified Jun 17, 2026

CVE-2020-29443 is a low-severity vulnerability rated 3.9/10 on the CVSS scale. ide_atapi_cmd_reply_end in hw/ide/atapi.c in QEMU 5.1.0 allows out-of-bounds read access because a buffer index is not validated.. EPSS estimates a 0.37% chance of exploitation in the next 30 days.

Description

ide_atapi_cmd_reply_end in hw/ide/atapi.c in QEMU 5.1.0 allows out-of-bounds read access because a buffer index is not validated.

Metrics

CVSS 3.1

3.9/10

CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:L/I:N/A:L

EPSS Probability

0.37%

28.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-125

Affected Software

Vendor	Product	Versions
Qemu	Qemu	5.1.0
Debian	Debian Linux	9.0
Debian	Debian Linux	10.0

References

http://www.openwall.com/lists/oss-security/2021/01/18/2Mailing List, Patch, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2021/02/msg00024.htmlMailing List, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2022/09/msg00008.htmlMailing List, Third Party Advisory
https://lists.nongnu.org/archive/html/qemu-devel/2020-11/msg04685.htmlMailing List, Patch, Third Party Advisory
https://security.netapp.com/advisory/ntap-20210304-0003/Third Party Advisory
http://www.openwall.com/lists/oss-security/2021/01/18/2Mailing List, Patch, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2021/02/msg00024.htmlMailing List, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2022/09/msg00008.htmlMailing List, Third Party Advisory
https://lists.nongnu.org/archive/html/qemu-devel/2020-11/msg04685.htmlMailing List, Patch, Third Party Advisory
https://security.netapp.com/advisory/ntap-20210304-0003/Third Party Advisory

Timeline

Published: Jan 26, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-29443?

ide_atapi_cmd_reply_end in hw/ide/atapi.c in QEMU 5.1.0 allows out-of-bounds read access because a buffer index is not validated.

How severe is CVE-2020-29443?

CVE-2020-29443 has a CVSS score of 3.9/10 (LOW severity). The EPSS model estimates a 0.37% probability of exploitation in the next 30 days.

How do I fix CVE-2020-29443?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-29443?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST