VulnerabilityModified
CVE-2023-22308
An integer underflow vulnerability exists in the vpnserver OvsProcessData functionality of SoftEther VPN 5.01.9674 and 5.02.
HIGH 7.5EPSS 0.73%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.73%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
An integer underflow vulnerability exists in the vpnserver OvsProcessData functionality of SoftEther VPN 5.01.9674 and 5.02. A specially crafted network packet can lead to denial of service. An attacker can send a malicious packet to trigger this vulnerability.
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.73% probability · 52th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-191
- Affected
- softether/vpn
- Source
- talos-cna@cisco.com
References
- https://talosintelligence.com/vulnerability_reports/TALOS-2023-1737Exploit, Third Party Advisory
- https://talosintelligence.com/vulnerability_reports/TALOS-2023-1737Exploit, Third Party Advisory
- https://www.talosintelligence.com/vulnerability_reports/TALOS-2023-1737
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.