PatchTheCVECVE-2020-7673: node-extend through 0.2.0 is vulnerable to Arbitrary Code Execution
CVE-2020-7673 is a critical-severity flaw (CVSS 9.8) affecting node-extend. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
node-extend through 0.2.0 is vulnerable to Arbitrary Code Execution. User input provided to the argument `A` of `extend` function`(A,B,as,isAargs)` located within `lib/extend.js` is executed by the `eval` function, resulting in code execution.
Why this priority
- Critical severity
- Public exploit reference
- Remotely exploitable, no login, no user action
A fixed release or distro patch exists.
Risk facts
| CVSS score | 9.8 (Critical) |
| Attack vector | Network (remote) |
| Attack complexity | Low |
| Privileges needed | None |
| User interaction | None |
| EPSS exploit chance | 2.6% (top 15%) |
| CISA exploited list | No |
| Weakness | CWE-94 |
| Published | 2020-06-10 |
| 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-2020-7673?
node-extend: upgrade to newer than 0.2.0. Exact commands for each OS are on this page.
Is CVE-2020-7673 being exploited?
CVE-2020-7673 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-2020-7673 affect?
CVE-2020-7673 affects node-extend. Severity is critical (CVSS 9.8). node-extend through 0.2.0 is vulnerable to Arbitrary Code Execution. User input provided to the argument `A` of `extend` function`(A,B,as,isAargs)` located within `lib/extend.js` is executed by the `eval` function, resulting in code executi
How urgent is CVE-2020-7673?
Priority 66/100. Critical severity; Public exploit reference; Remotely exploitable, no login, no user action