CVE-2021-30121 is a semi-authenticated local file inclusion vulnerability affecting Kaseya VSA, allowing an attacker to retrieve arbitrary files from the web server. With a CVSS score of 6.5 (Medium), this vulnerability requires a valid session ID, which can be easily acquired through a separate vulnerability (CVE-2021-30118), making it a low-complexity attack with high confidentiality impact. While not listed in CISA's KEV catalog, this vulnerability has garnered significant community discussion and media coverage due to its use in REvil ransomware attacks, despite no public exploit code being readily available.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 9.5.6CPE matchmatch criteria | cpe:2.3:a:kaseya:vsa:*:*:*:*:-:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 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.