CVE-2021-22519

CVE-2021-22519 is a critical-severity vulnerability in Microfocus Sitescope 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.

Key facts

Description

Execute arbitrary code vulnerability in Micro Focus SiteScope product, affecting versions 11.40,11.41 , 2018.05(11.50), 2018.08(11.51), 2018.11(11.60), 2019.02(11.70), 2019.05(11.80), 2019.08(11.90), 2019.11(11.91), 2020.05(11.92), 2020.10(11.93). The vulnerability could allow remote attackers to execute arbitrary code on affected installations of SiteScope.

Frequently asked questions

What is CVE-2021-22519?
Execute arbitrary code vulnerability in Micro Focus SiteScope product, affecting versions 11.40,11.41 , 2018.05(11.50), 2018.08(11.51), 2018.11(11.60), 2019.02(11.70), 2019.05(11.80), 2019.08(11.90), 2019.11(11.91), 2020.05(11.92), 2020.10(11.93). The vulnerability could allow remote attackers to execute arbitrary code on affected installations of SiteScope.
How severe is CVE-2021-22519?
CVE-2021-22519 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-2021-22519 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (78th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-22519?
CVE-2021-22519 primarily affects Microfocus Sitescope. In total, 11 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2021-22519?
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-2021-22519 published?
CVE-2021-22519 was published on 2021-05-28 and last updated on 2026-06-17.

References

Affected products (11)