How severe is CVE-2022-44751?

CVE-2022-44751 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2022-44751 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (47th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-44751?

CVE-2022-44751 primarily affects Hcltech Notes. In total, 39 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2022-44751?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2022-44751 published?

CVE-2022-44751 was published on 2022-12-19 and last updated on 2026-06-17.

CVE-2022-44751

CVE-2022-44751 is a critical-severity vulnerability in Hcltech Notes with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-787.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
EPSS exploit prediction: 1% (47th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-787
Affected product: Hcltech Notes
Published: 2022-12-19
Last modified: 2026-06-17

Description

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-2022-44755. This vulnerability applies to software previously licensed by IBM.

Frequently asked questions

What is CVE-2022-44751?: 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-2022-44755. This vulnerability applies to software previously licensed by IBM.
How severe is CVE-2022-44751?: CVE-2022-44751 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2022-44751 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (47th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-44751?: CVE-2022-44751 primarily affects Hcltech Notes. In total, 39 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2022-44751?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2022-44751 published?: CVE-2022-44751 was published on 2022-12-19 and last updated on 2026-06-17.

References

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

Affected products (39)

cpe:2.3:a:hcltech:notes:9.0.1:-:*:*:*:*:*:*
cpe:2.3:a:hcltech:notes:9.0.1:fp10:*:*:*:*:*:*
cpe:2.3:a:hcltech:notes:9.0.1:fp10if1:*:*:*:*:*:*
cpe:2.3:a:hcltech:notes:9.0.1:fp10if10:*:*:*:*:*:*
cpe:2.3:a:hcltech:notes:9.0.1:fp10if2:*:*:*:*:*:*
cpe:2.3:a:hcltech:notes:9.0.1:fp10if3:*:*:*:*:*:*
cpe:2.3:a:hcltech:notes:9.0.1:fp10if4:*:*:*:*:*:*
cpe:2.3:a:hcltech:notes:9.0.1:fp10if5:*:*:*:*:*:*
cpe:2.3:a:hcltech:notes:9.0.1:fp10if6:*:*:*:*:*:*
cpe:2.3:a:hcltech:notes:9.0.1:fp10if7:*:*:*:*:*:*
cpe:2.3:a:hcltech:notes:9.0.1:fp10if8:*:*:*:*:*:*
cpe:2.3:a:hcltech:notes:9.0.1:fp1if1:*:*:*:*:*:*
cpe:2.3:a:hcltech:notes:9.0.1:fp1if2:*:*:*:*:*:*
cpe:2.3:a:hcltech:notes:9.0.1:fp2if1:*:*:*:*:*:*
cpe:2.3:a:hcltech:notes:9.0.1:fp2if2:*:*:*:*:*:*
cpe:2.3:a:hcltech:notes:9.0.1:fp2if3:*:*:*:*:*:*
cpe:2.3:a:hcltech:notes:9.0.1:fp2if4:*:*:*:*:*:*
cpe:2.3:a:hcltech:notes:9.0.1:fp3if1:*:*:*:*:*:*
cpe:2.3:a:hcltech:notes:9.0.1:fp3if2:*:*:*:*:*:*
cpe:2.3:a:hcltech:notes:9.0.1:fp3if3:*:*:*:*:*:*
cpe:2.3:a:hcltech:notes:9.0.1:fp3if4:*:*:*:*:*:*
cpe:2.3:a:hcltech:notes:9.0.1:fp4if1:*:*:*:*:*:*
cpe:2.3:a:hcltech:notes:9.0.1:fp4if2:*:*:*:*:*:*
cpe:2.3:a:hcltech:notes:9.0.1:fp5if1:*:*:*:*:*:*
cpe:2.3:a:hcltech:notes:9.0.1:fp5if2:*:*:*:*:*:*
cpe:2.3:a:hcltech:notes:9.0.1:fp5if3:*:*:*:*:*:*
cpe:2.3:a:hcltech:notes:9.0.1:fp7if1:*:*:*:*:*:*
cpe:2.3:a:hcltech:notes:9.0.1:fp7if2:*:*:*:*:*:*
cpe:2.3:a:hcltech:notes:9.0.1:fp8if1:*:*:*:*:*:*
cpe:2.3:a:hcltech:notes:9.0.1:fp9if1:*:*:*:*:*:*
cpe:2.3:a:hcltech:notes:9.0.1:fp9if2:*:*:*:*:*:*
cpe:2.3:a:hcltech:notes:10.0.1:-:*:*:*:*:*:*
cpe:2.3:a:hcltech:notes:10.0.1:fp1:*:*:*:*:*:*
cpe:2.3:a:hcltech:notes:10.0.1:fp2:*:*:*:*:*:*
cpe:2.3:a:hcltech:notes:10.0.1:fp3:*:*:*:*:*:*
cpe:2.3:a:hcltech:notes:10.0.1:fp4:*:*:*:*:*:*
cpe:2.3:a:hcltech:notes:10.0.1:fp5:*:*:*:*:*:*
cpe:2.3:a:hcltech:notes:10.0.1:fp6:*:*:*:*:*:*
cpe:2.3:a:hcltech:notes:10.0.1:fp7:*:*:*:*:*:*

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CVE-2022-44755 — Critical (CVSS 9.8): HCL Notes is susceptible to a stack based buffer overflow vulnerability in lasr.dll in Micro Focus KeyView. This could…
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CVE-2020-14232 — High (CVSS 8.8): A vulnerability in the input parameter handling of HCL Notes v9 could potentially be exploited by an authenticated…
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