PatchTheCVECVE-2020-7748: This affects the package @tsed/core before 5.65.7
CVE-2020-7748 is a medium-severity flaw (CVSS 5.6) affecting ts.ed. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
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.
Why this priority
- Public exploit reference
- Remotely exploitable, no login, no user action
A fixed release or distro patch exists.
Risk facts
| CVSS score | 5.6 (Medium) |
| Attack vector | Network (remote) |
| Attack complexity | High |
| Privileges needed | None |
| User interaction | None |
| EPSS exploit chance | 1.7% (top 23%) |
| CISA exploited list | No |
| Weakness | CWE-1321 |
| Published | 2020-10-20 |
| Last modified | 2026-06-17 |
Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2020-7748?
ts.ed: upgrade to 5.65.7. Exact commands for each OS are on this page.
Is CVE-2020-7748 being exploited?
CVE-2020-7748 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2020-7748 affect?
CVE-2020-7748 affects ts.ed. Severity is medium (CVSS 5.6). 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
How urgent is CVE-2020-7748?
Priority 49/100. Public exploit reference; Remotely exploitable, no login, no user action