CVE-2020-28895

Name: CVE-2020-28895
Creator: NVD / NIST
Published: 2021-02-03T16:15:13.633+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.3/10EPSS 1.47%

Last modified Jun 17, 2026

CVE-2020-28895 is a high-severity vulnerability rated 7.3/10 on the CVSS scale. In Wind River VxWorks, memory allocator has a possible overflow in calculating the memory block's size to be allocated by calloc(). As a result, the actual memory allocated is smaller than the buffer size specified by the arguments, leading to memory corruption.. EPSS estimates a 1.47% chance of exploitation in the next 30 days.

Description

In Wind River VxWorks, memory allocator has a possible overflow in calculating the memory block's size to be allocated by calloc(). As a result, the actual memory allocated is smaller than the buffer size specified by the arguments, leading to memory corruption.

Metrics

CVSS 3.1

7.3/10

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

EPSS Probability

1.47%

70.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Windriver	Vxworks	>= 6.9, < 6.9.4.12
Windriver	Vxworks	6.9.4.12
Oracle	Communications Eagle	>= 46.8.0, <= 48.6.2
Oracle	Communications Eagle	>= 46.9.1, <= 46.9.3
Oracle	Communications Eagle	46.7.0

References

https://support2.windriver.com/index.php?page=cve&on=view&id=CVE-2020-28895Vendor Advisory
https://support2.windriver.com/index.php?page=defects&on=view&id=V7LIBC-1327Permissions Required
https://www.oracle.com/security-alerts/cpuapr2022.htmlPatch, Third Party Advisory
https://support2.windriver.com/index.php?page=cve&on=view&id=CVE-2020-28895Vendor Advisory
https://support2.windriver.com/index.php?page=defects&on=view&id=V7LIBC-1327Permissions Required
https://www.oracle.com/security-alerts/cpuapr2022.htmlPatch, Third Party Advisory

Timeline

Published: Feb 3, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-28895?

How severe is CVE-2020-28895?

CVE-2020-28895 has a CVSS score of 7.3/10 (HIGH severity). The EPSS model estimates a 1.47% probability of exploitation in the next 30 days.

How do I fix CVE-2020-28895?

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-2020-28895?

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

Scan your code now

Source: NVD / NIST