CVE-2020-7748

Name: CVE-2020-7748
Creator: NVD / NIST
Published: 2020-10-20T11:15:12.583+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.1/10EPSS 1.70%

Last modified Jun 17, 2026

CVE-2020-7748 is a high-severity vulnerability rated 8.1/10 on the CVSS scale. This affects the package @tsed/core before 5.65.7. This vulnerability relates to the deepExtend function which is used as part of the utils directory. EPSS estimates a 1.70% chance of exploitation in the next 30 days.

Description

This affects the package @tsed/core before 5.65.7. This vulnerability relates to the deepExtend function which is used as part of the utils directory. Depending on if user input is provided, an attacker can overwrite and pollute the object prototype of a program.

Metrics

CVSS 3.1

8.1/10

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

EPSS Probability

1.70%

74.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-1321

Affected Software

Vendor	Product	Versions
Ts.Ed Project	Ts.Ed	< 5.65.7

References

https://github.com/TypedProject/tsed/blob/production/packages/core/src/utils/deepExtends.ts%23L36Broken Link, Patch, Third Party Advisory
https://github.com/TypedProject/tsed/commit/1395773ddac35926cf058fc6da9fb8e82266761bPatch, Third Party Advisory
https://snyk.io/vuln/SNYK-JS-TSEDCORE-1019382Exploit, Patch, Third Party Advisory
https://github.com/TypedProject/tsed/blob/production/packages/core/src/utils/deepExtends.ts%23L36Broken Link, Patch, Third Party Advisory
https://github.com/TypedProject/tsed/commit/1395773ddac35926cf058fc6da9fb8e82266761bPatch, Third Party Advisory
https://snyk.io/vuln/SNYK-JS-TSEDCORE-1019382Exploit, Patch, Third Party Advisory

Timeline

Published: Oct 20, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-7748?

How severe is CVE-2020-7748?

CVE-2020-7748 has a CVSS score of 8.1/10 (HIGH severity). The EPSS model estimates a 1.70% probability of exploitation in the next 30 days.

How do I fix CVE-2020-7748?

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-2020-7748?

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

Scan your code now

Source: NVD / NIST