CVE-2020-1751

Name: CVE-2020-1751
Creator: NVD / NIST
Published: 2020-04-17T19:15:14.437+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7/10EPSS 0.54%

Last modified Jun 17, 2026

CVE-2020-1751 is a high-severity vulnerability rated 7/10 on the CVSS scale. An out-of-bounds write vulnerability was found in glibc before 2.31 when handling signal trampolines on PowerPC. Specifically, the backtrace function did not properly check the array bounds when storing the frame address, resulting in a denial of service or potential code execution. EPSS estimates a 0.54% chance of exploitation in the next 30 days.

Description

An out-of-bounds write vulnerability was found in glibc before 2.31 when handling signal trampolines on PowerPC. Specifically, the backtrace function did not properly check the array bounds when storing the frame address, resulting in a denial of service or potential code execution. The highest threat from this vulnerability is to system availability.

Metrics

CVSS 3.1

7/10

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

EPSS Probability

0.54%

41.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Gnu	Glibc	< 2.31
Redhat	Enterprise Linux	8.0
Canonical	Ubuntu Linux	16.04
Canonical	Ubuntu Linux	18.04
Canonical	Ubuntu Linux	19.10

References

https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-1751Issue Tracking, Patch, Third Party Advisory
https://security.gentoo.org/glsa/202006-04Third Party Advisory
https://security.netapp.com/advisory/ntap-20200430-0002/Third Party Advisory
https://sourceware.org/bugzilla/show_bug.cgi?id=25423Issue Tracking, Third Party Advisory
https://usn.ubuntu.com/4416-1/Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-1751Issue Tracking, Patch, Third Party Advisory
https://security.gentoo.org/glsa/202006-04Third Party Advisory
https://security.netapp.com/advisory/ntap-20200430-0002/Third Party Advisory
https://sourceware.org/bugzilla/show_bug.cgi?id=25423Issue Tracking, Third Party Advisory
https://usn.ubuntu.com/4416-1/Third Party Advisory

Timeline

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

Frequently Asked Questions

What is CVE-2020-1751?

How severe is CVE-2020-1751?

CVE-2020-1751 has a CVSS score of 7/10 (HIGH severity). The EPSS model estimates a 0.54% probability of exploitation in the next 30 days.

How do I fix CVE-2020-1751?

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-2020-1751?

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

Scan your code now

Source: NVD / NIST