CVE-2021-22523
CVE-2021-22523 is a high-severity vulnerability in Microfocus Verastream Host Integrator with a CVSS 3.x base score of 7.6. 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-611.
Key facts
- Severity: High (CVSS 3.x base score 7.6)
- CVSS v2: 6.8
- EPSS exploit prediction: 1% (53rd percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-611
- Affected product: Microfocus Verastream Host Integrator
- Published:
- Last modified:
Description
XML External Entity vulnerability in Micro Focus Verastream Host Integrator, affecting version 7.8 Update 1 and earlier versions. The vulnerability could allow the control of web browser and hijacking user sessions.
Frequently asked questions
- What is CVE-2021-22523?
- XML External Entity vulnerability in Micro Focus Verastream Host Integrator, affecting version 7.8 Update 1 and earlier versions. The vulnerability could allow the control of web browser and hijacking user sessions.
- How severe is CVE-2021-22523?
- CVE-2021-22523 has a CVSS 3.x base score of 7.6, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity low, and availability low.
- Is CVE-2021-22523 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (53rd percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2021-22523?
- CVE-2021-22523 primarily affects Microfocus Verastream Host Integrator. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2021-22523?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- When was CVE-2021-22523 published?
- CVE-2021-22523 was published on 2021-07-22 and last updated on 2026-06-17.
References
Affected products (3)
- cpe:2.3:a:microfocus:verastream_host_integrator:*:*:*:*:*:*:*:*
- cpe:2.3:a:microfocus:verastream_host_integrator:7.8:-:*:*:*:*:*:*
- cpe:2.3:a:microfocus:verastream_host_integrator:7.8:update_1:*:*:*:*:*:*
More vulnerabilities in Microfocus Verastream Host Integrator
- CVE-2020-11842 — High (CVSS 7.5): Information disclosure vulnerability in Micro Focus Verastream Host Integrator (VHI) product, affecting versions…
- CVE-2019-11654 — High (CVSS 7.5): Path traversal vulnerability in Micro Focus Verastream Host Integrator (VHI), versions 7.7 SP2 and earlier, The…
- CVE-2021-22522 — High (CVSS 7.1): Reflected Cross-Site Scripting vulnerability in Micro Focus Verastream Host Integrator, affecting version version 7.8…
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- CVE-2019-14678 — Critical (CVSS 10.0): SAS XML Mapper 9.45 has an XML External Entity (XXE) vulnerability that can be leveraged by malicious attackers in…
- CVE-2015-9280 — Critical (CVSS 10.0): MailEnable before 8.60 allows XXE via an XML document in the request.aspx Options parameter.
- CVE-2018-1000838 — Critical (CVSS 10.0): autopsy version <= 4.9.0 contains a XML External Entity (XXE) vulnerability in CaseMetadata XML Parser that can result…
- CVE-2018-1000837 — Critical (CVSS 10.0): UML Designer version <= 8.0.0 contains a XML External Entity (XXE) vulnerability in XML parser for plugins that can…
- CVE-2018-1000835 — Critical (CVSS 10.0): KeePassDX version <= 2.5.0.0beta17 contains a XML External Entity (XXE) vulnerability in kdbx file parser that can…
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