CVE-2022-44755 — HCL Notes is susceptible to a stack based buffer overflow vulnerability in lasr

HCL Notes is susceptible to a stack based buffer overflow vulnerability in lasr.dll in Micro Focus KeyView. This could allow a remote unauthenticated attacker to crash the application or execute arbitrary code via a crafted Lotus Ami Pro file. This is different from the vulnerabi

01What is this vulnerability?

HCL Notes is susceptible to a stack based buffer overflow vulnerability in lasr.dll in Micro Focus KeyView. This could allow a remote unauthenticated attacker to crash the application or execute arbitrary code via a crafted Lotus Ami Pro file. This is different from the vulnerability described in CVE-2022-44751. This vulnerability applies to software previously licensed by IBM.

02Affected products

Vendor	Product	Versions
HCL Software	Notes	9, 10

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

08Timeline

• Published: 2022-12-17T01:57:45.446Z
• Last modified: 2025-04-17T14:31:34.058Z

09References

• support.hcltechsw.com — https://support.hcltechsw.com/csm?id=kb_article&sysparm_article=KB0100260