CVE-2024-31497 is a critical vulnerability in PuTTY versions 0.68 through 0.80, and affects related products like FileZilla, WinSCP, TortoiseGit, and TortoiseSVN. It stems from biased ECDSA nonce generation, allowing an attacker to recover a user's NIST P-521 secret key after approximately 60 signatures. This vulnerability carries a CVSS score of 5.9 (Medium) due to its network attack vector and high impact on confidentiality, though it requires high attack complexity. While there is no evidence of active exploitation or publicly available exploit code, the vulnerability has garnered significant community attention and media coverage, indicating a high potential for future exploitation.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
>= 0.68, < 0.81CPE matchmatch criteria | cpe:2.3:a:putty:putty:*:*:*:*:*:*:*:* | ||
< 3.67.0CPE matchmatch criteria | cpe:2.3:a:filezilla-project:filezilla_client:*:*:*:*:*:*:*:* | ||
< 6.3.3CPE matchmatch criteria | cpe:2.3:a:winscp:winscp:*:*:*:*:*:*:*:* | ||
< 2.15.0.1CPE matchmatch criteria | cpe:2.3:a:tortoisegit:tortoisegit:*:*:*:*:*:*:*:* | ||
< 1.14.6CPE matchmatch criteria | cpe:2.3:a:tigris:tortoisesvn:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.
The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.