CVE-2021-46873 — MEDIUM (5.3)

Vulnerability Description

WireGuard, such as WireGuard 0.5.3 on Windows, does not fully account for the possibility that an adversary might be able to set a victim's system time to a future value, e.g., because unauthenticated NTP is used. This can lead to an outcome in which one static private key becomes permanently useless.

CVSS Score

5.3

MEDIUM

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

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

NONE

Integrity

NONE

Availability

LOW

Affected Products

Vendor	Product	Versions
Wireguard	Wireguard	0.5.3
Microsoft	Windows	-

Related Weaknesses (CWE)

CWE-362

References

https://lists.zx2c4.com/pipermail/wireguard/2021-August/006916.htmlMailing ListThird Party Advisory
https://lists.zx2c4.com/pipermail/wireguard/2021-August/006916.htmlMailing ListThird Party Advisory

FAQ

What is CVE-2021-46873?

CVE-2021-46873 is a vulnerability with a CVSS score of 5.3 (MEDIUM). WireGuard, such as WireGuard 0.5.3 on Windows, does not fully account for the possibility that an adversary might be able to set a victim's system time to a future value, e.g., because unauthenticated...

How severe is CVE-2021-46873?

CVE-2021-46873 has been rated MEDIUM with a CVSS base score of 5.3/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2021-46873?

Check the references section above for vendor advisories and patch information. Affected products include: Wireguard Wireguard, Microsoft Windows.