CVE-2020-4089 Information disclosure in HCL Notes
Attackers can leak local or network files via the mailto protocol in HCL Notes, exposing sensitive user data.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2020-4089?
CVE-2020-4089 is a medium-severity vulnerability in HCL Notes, published on 26 Jun 2020. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
HCL Notes is vulnerable to an information leakage vulnerability through its support for the 'mailto' protocol. This vulnerability could result in files from the user's filesystem or connected network filesystems being leaked to a third party. All versions of HCL Notes 9, 10 and 11 are affected.
Which versions are affected by CVE-2020-4089?
It affects 1 product.
Products include Hcltech Notes.
How do I fix CVE-2020-4089?
No fix has been published for CVE-2020-4089 yet. Limit exposure of the affected software until one is available.
Is CVE-2020-4089 being exploited?
There is no known exploitation of CVE-2020-4089 in the wild and no public exploit code.
Other vulnerabilities in HCL Notes
- CVE-2022-44751 HCL Notes is susceptible to a stack based buffer overflow vulnerability in lasr.dll in Micro Focus KeyView
- CVE-2022-44753 HCL Notes is susceptible to a stack based buffer overflow vulnerability in wp6sr.dll in Micro Focus KeyView
- CVE-2022-44755 HCL Notes is susceptible to a stack based buffer overflow vulnerability in lasr.dll in Micro Focus KeyView
- CVE-2020-14224 Memory corruption in HCL Notes
- CVE-2020-14268 Memory corruption in HCL Notes
Sources
Also known as GHSA-86j9-2vjw-f9pp.