CVE-2020-13765

Name: CVE-2020-13765
Creator: NVD / NIST
Published: 2020-06-04T16:15:12.733+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.6/10EPSS 2.41%

Last modified Jun 17, 2026

CVE-2020-13765 is a medium-severity vulnerability rated 5.6/10 on the CVSS scale. rom_copy() in hw/core/loader.c in QEMU 4.0 and 4.1.0 does not validate the relationship between two addresses, which allows attackers to trigger an invalid memory copy operation.. EPSS estimates a 2.41% chance of exploitation in the next 30 days.

Description

rom_copy() in hw/core/loader.c in QEMU 4.0 and 4.1.0 does not validate the relationship between two addresses, which allows attackers to trigger an invalid memory copy operation.

Metrics

CVSS 3.1

5.6/10

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

EPSS Probability

2.41%

82.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-787

Affected Software

Vendor	Product	Versions
Qemu	Qemu	4.0.0
Qemu	Qemu	4.1.0
Canonical	Ubuntu Linux	16.04
Canonical	Ubuntu Linux	18.04
Canonical	Ubuntu Linux	20.04
Debian	Debian Linux	8.0
Debian	Debian Linux	9.0

References

https://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=e423455c4f23a1a828901c78fe6d03b7dde79319
https://github.com/qemu/qemu/commit/4f1c6cb2f9afafda05eab150fd2bd284edce6676Patch, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2020/06/msg00032.htmlMailing List, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2020/07/msg00020.htmlMailing List, Third Party Advisory
https://security.netapp.com/advisory/ntap-20200619-0006/Third Party Advisory
https://usn.ubuntu.com/4467-1/Third Party Advisory
https://www.openwall.com/lists/oss-security/2020/06/03/6Mailing List, Third Party Advisory
https://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=e423455c4f23a1a828901c78fe6d03b7dde79319
https://github.com/qemu/qemu/commit/4f1c6cb2f9afafda05eab150fd2bd284edce6676Patch, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2020/06/msg00032.htmlMailing List, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2020/07/msg00020.htmlMailing List, Third Party Advisory
https://security.netapp.com/advisory/ntap-20200619-0006/Third Party Advisory
https://usn.ubuntu.com/4467-1/Third Party Advisory
https://www.openwall.com/lists/oss-security/2020/06/03/6Mailing List, Third Party Advisory

Timeline

Published: Jun 4, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-13765?

rom_copy() in hw/core/loader.c in QEMU 4.0 and 4.1.0 does not validate the relationship between two addresses, which allows attackers to trigger an invalid memory copy operation.

How severe is CVE-2020-13765?

CVE-2020-13765 has a CVSS score of 5.6/10 (MEDIUM severity). The EPSS model estimates a 2.41% probability of exploitation in the next 30 days.

How do I fix CVE-2020-13765?

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-2020-13765?

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

Scan your code now

Source: NVD / NIST