Cyber Resilience

CVE-2021-28918

CriticalPublic PoC

Published: 01 April 2021

Published
01 April 2021
Modified
21 November 2024
KEV Added
—
Patch
—
CVSS Score v3.1 9.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
EPSS Score 0.8590 99.4th percentile
Risk Priority 70 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2021-28918 is a critical-severity Incorrect Type Conversion or Cast (CWE-704) vulnerability in Netmask Project Netmask. Its CVSS base score is 9.1 (Critical).

Operationally, ranked in the top 0.6% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

EU & UK References

Vulnerability details

Improper input validation of octal strings in netmask npm package v1.0.6 and below allows unauthenticated remote attackers to perform indeterminate SSRF, RFI, and LFI attacks on many of the dependent packages. A remote unauthenticated attacker can bypass packages relying on…

more

netmask to filter IPs and reach critical VPN or LAN hosts.

CWE(s)
CWE-704

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

netmask project
netmask
≤ 1.0.6

Mitigating Controls

No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.

References