CVE-2020-4089 describes an information leakage vulnerability in HCL Notes versions 9, 10, and 11, stemming from its handling of the 'mailto' protocol. This flaw allows for the potential exfiltration of files from a user's local or connected network filesystems to a third party. Rated 6.5 Medium on CVSS, the vulnerability is network-exploitable with low attack complexity, requiring user interaction to achieve high confidentiality impact. There is no evidence of active exploitation, nor are public exploit codes like Metasploit or Nuclei modules available, though it has garnered some community discussion and media coverage.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
9.0CPE matchmatch criteria | cpe:2.3:a:hcltech:notes:9.0:*:*:*:*:*:*:* | ||
10.0CPE matchmatch criteria | cpe:2.3:a:hcltech:notes:10.0:*:*:*:*:*:*:* | ||
11.0CPE matchmatch criteria | cpe:2.3:a:hcltech:notes:11.0:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
No social media mentions found for this CVE.
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 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.