No exploitation reported

CVE-2021-22519

No exploitation reported by the sources we read.

Published2021-05-28

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

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.

Timeline

dates in UTC

2021-05-2820:15CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-10-23 18:48 UTC

Indicators tagged with this CVE, per day0 indicators over 7 days

Block these indicators

Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2021-22519?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2021-22519?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD

Microfocus sitescope

Branch	Affected	Fixed in	Source
11.40	= 11.40	no fix published	NVD
11.41	= 11.41	no fix published	NVD
11.50	= 11.50	no fix published	NVD
11.51	= 11.51	no fix published	NVD
11.60	= 11.60	no fix published	NVD
11.70	= 11.70	no fix published	NVD
11.80	= 11.80	no fix published	NVD
11.90	= 11.90	no fix published	NVD
11.91	= 11.91	no fix published	NVD
11.92	= 11.92	no fix published	NVD
11.93	= 11.93	no fix published	NVD

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

No fix published by the sources we read yet. NVD record

Detection

Nuclei template: none so far
Exploit-DB: no entry
Proof-of-concept repositories: none listed

Sources

NVDCVSS 3.19.8read 2026-10-23
NVDCVSS 2.07.5read 2026-10-23
FIRST EPSSEPSS score2.0 %2026-10-22

Technical details

CVSS v3 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published: 2021-05-28
Last Modified: 2026-06-17
NVD status: Modified

Frequently asked questions

What is CVE-2021-22519?

Is CVE-2021-22519 actively exploited?

Active exploitation of CVE-2021-22519 has not been confirmed. Its EPSS score was 2.0% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2021-22519?

CVE-2021-22519 has a CVSS v3 base score of 9.8 (CRITICAL severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

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