Medium severity · published Jan 29, 2023
CVE-2021-46873
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.,…
5.3
CVSS
0.5%
EPSS
No
On KEV
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 vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
Low
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 41% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
WI
Wireguard · Wireguard
0.5.3 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-46873
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-46873
Mailing List
https://lists.zx2c4.com/pipermail/wireguard/2021-August/006916.html
More from Wireguard
5.7
CVE-2023-35838
The WireGuard client 0.5.3 on Windows insecurely configures the operating system and firewall such that traffic to a local network that uses non-RFC1918 IP addresses is blocked