How severe is CVE-2020-8541?

CVE-2020-8541 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2020-8541 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (60th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-8541?

CVE-2020-8541 primarily affects Open-xchange Open-xchange Appsuite. In total, 16 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2020-8541?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2020-8541 published?

CVE-2020-8541 was published on 2020-06-16 and last updated on 2026-06-17.

CVE-2020-8541

CVE-2020-8541 is a medium-severity vulnerability in Open-xchange Open-xchange Appsuite with a CVSS 3.x base score of 6.5. 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: Medium (CVSS 3.x base score 6.5)
CVSS v2: 4.0
EPSS exploit prediction: 1% (60th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-611
Affected product: Open-xchange Open-xchange Appsuite
Published: 2020-06-16
Last modified: 2026-06-17

Description

OX App Suite through 7.10.3 allows XXE attacks.

Frequently asked questions

What is CVE-2020-8541?: OX App Suite through 7.10.3 allows XXE attacks.
How severe is CVE-2020-8541?: CVE-2020-8541 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2020-8541 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (60th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-8541?: CVE-2020-8541 primarily affects Open-xchange Open-xchange Appsuite. In total, 16 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2020-8541?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2020-8541 published?: CVE-2020-8541 was published on 2020-06-16 and last updated on 2026-06-17.

References

Affected products (16)

cpe:2.3:a:open-xchange:open-xchange_appsuite:7.10.1:*:*:*:*:*:*:*
cpe:2.3:a:open-xchange:open-xchange_appsuite:7.10.1:rev1:*:*:*:*:*:*
cpe:2.3:a:open-xchange:open-xchange_appsuite:7.10.1:rev2:*:*:*:*:*:*
cpe:2.3:a:open-xchange:open-xchange_appsuite:7.10.1:rev3:*:*:*:*:*:*
cpe:2.3:a:open-xchange:open-xchange_appsuite:7.10.1:rev4:*:*:*:*:*:*
cpe:2.3:a:open-xchange:open-xchange_appsuite:7.10.1:rev5:*:*:*:*:*:*
cpe:2.3:a:open-xchange:open-xchange_appsuite:7.10.2:*:*:*:*:*:*:*
cpe:2.3:a:open-xchange:open-xchange_appsuite:7.10.2:rev1:*:*:*:*:*:*
cpe:2.3:a:open-xchange:open-xchange_appsuite:7.10.2:rev2:*:*:*:*:*:*
cpe:2.3:a:open-xchange:open-xchange_appsuite:7.10.2:rev3:*:*:*:*:*:*
cpe:2.3:a:open-xchange:open-xchange_appsuite:7.10.2:rev4:*:*:*:*:*:*
cpe:2.3:a:open-xchange:open-xchange_appsuite:7.10.3:*:*:*:*:*:*:*
cpe:2.3:a:open-xchange:open-xchange_appsuite:7.10.3:rev1:*:*:*:*:*:*
cpe:2.3:a:open-xchange:open-xchange_appsuite:7.10.3:rev2:*:*:*:*:*:*
cpe:2.3:a:open-xchange:open-xchange_appsuite:7.10.3:rev3:*:*:*:*:*:*
cpe:2.3:a:open-xchange:open-xchange_appsuite:7.10.3:rev4:*:*:*:*:*:*

More vulnerabilities in Open-xchange Open-xchange Appsuite

CVE-2017-13667 — Critical (CVSS 9.9): OX Software GmbH OX App Suite 7.8.4 and earlier is affected by: SSRF.
CVE-2020-12645 — Critical (CVSS 9.8): OX App Suite 7.10.1 to 7.10.3 has improper input validation for rate limits with a crafted User-Agent header, spoofed…
CVE-2019-7158 — Critical (CVSS 9.8): OX App Suite 7.10.0 and earlier has Incorrect Access Control.
CVE-2017-5212 — Critical (CVSS 9.8): Open-Xchange GmbH OX App Suite 7.8.3 is affected by: Incorrect Access Control.
CVE-2017-5210 — Critical (CVSS 9.8): Open-Xchange GmbH OX App Suite 7.8.3 and earlier is affected by: Information Exposure.
CVE-2017-17060 — Critical (CVSS 9.8): OX Software GmbH OX App Suite 7.8.4 and earlier is affected by: Insecure Permissions.

All CVEs affecting Open-xchange Open-xchange Appsuite →

Other CWE-611 (Improper Restriction of XML External Entity Reference (XXE)) vulnerabilities

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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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