What is CVE-2020-7703?

CVE-2020-7703 is a critical-severity vulnerability in Nis-Utils Project, classified under Improperly Controlled Modification of Object Prototype Attributes (Prototype Pollution). CVSS score: 9.8/10. Published 2020-08-17.

How severe is CVE-2020-7703?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Is CVE-2020-7703 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Prototype Pollution in Nis-Utils Project

CVE-2020-7703

All versions of package nis-utils are vulnerable to Prototype Pollution via the setValue function.

Vulnerability class: Prototype Pollution

EPSS: 0.019 (77.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Nis-utils_project Nis-utils
N/a Nis-utils — versions 0

Weakness classification (CWE)

CWE-1321 — Improperly Controlled Modification of Object Prototype Attributes (Prototype Pollution)

Public proof-of-concept exploits

Live-Hack-CVE/CVE-2020-7703

References

report@snyk.io (Exploit, Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2020-7703?: CVE-2020-7703 is a critical-severity vulnerability in Nis-Utils Project, classified under Improperly Controlled Modification of Object Prototype Attributes (Prototype Pollution). CVSS score: 9.8/10. Published 2020-08-17.
How severe is CVE-2020-7703?: Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2020-7703 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.