CVE-2020-25085

Name: CVE-2020-25085
Creator: NVD / NIST
Published: 2020-09-25T05:15:12.82+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5/10EPSS 0.64%

Last modified Jun 17, 2026

CVE-2020-25085 is a medium-severity vulnerability rated 5/10 on the CVSS scale. QEMU 5.0.0 has a heap-based Buffer Overflow in flatview_read_continue in exec.c because hw/sd/sdhci.c mishandles a write operation in the SDHC_BLKSIZE case.. EPSS estimates a 0.64% chance of exploitation in the next 30 days.

Description

QEMU 5.0.0 has a heap-based Buffer Overflow in flatview_read_continue in exec.c because hw/sd/sdhci.c mishandles a write operation in the SDHC_BLKSIZE case.

Metrics

CVSS 3.1

5/10

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

EPSS Probability

0.64%

45.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-787

Affected Software

Vendor	Product	Versions
Qemu	Qemu	5.0.0
Debian	Debian Linux	9.0
Debian	Debian Linux	10.0

References

http://www.openwall.com/lists/oss-security/2020/09/16/6Mailing List, Patch, Third Party Advisory
http://www.openwall.com/lists/oss-security/2021/03/09/1Mailing List, Patch, Third Party Advisory
https://bugs.launchpad.net/qemu/+bug/1892960Exploit, Issue Tracking, Patch, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2020/11/msg00047.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/2020-09/msg00733.htmlMailing List, Patch, Third Party Advisory
https://security.netapp.com/advisory/ntap-20201009-0005/Third Party Advisory
http://www.openwall.com/lists/oss-security/2020/09/16/6Mailing List, Patch, Third Party Advisory
http://www.openwall.com/lists/oss-security/2021/03/09/1Mailing List, Patch, Third Party Advisory
https://bugs.launchpad.net/qemu/+bug/1892960Exploit, Issue Tracking, Patch, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2020/11/msg00047.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/2020-09/msg00733.htmlMailing List, Patch, Third Party Advisory
https://security.netapp.com/advisory/ntap-20201009-0005/Third Party Advisory

Timeline

Published: Sep 25, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-25085?

QEMU 5.0.0 has a heap-based Buffer Overflow in flatview_read_continue in exec.c because hw/sd/sdhci.c mishandles a write operation in the SDHC_BLKSIZE case.

How severe is CVE-2020-25085?

CVE-2020-25085 has a CVSS score of 5/10 (MEDIUM severity). The EPSS model estimates a 0.64% probability of exploitation in the next 30 days.

How do I fix CVE-2020-25085?

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-2020-25085?

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

Scan your code now

Source: NVD / NIST