How severe is CVE-2020-11797?

CVE-2020-11797 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2020-11797 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (64th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-11797?

CVE-2020-11797 affects Mitel Micollab Audio, Web & Video Conferencing. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-11797?

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-2020-11797 published?

CVE-2020-11797 was published on 2020-08-26 and last updated on 2026-06-17.

CVE-2020-11797

CVE-2020-11797 is a high-severity vulnerability in Mitel Micollab Audio, Web & Video Conferencing with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 1% (64th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Mitel Micollab Audio, Web & Video Conferencing
Published: 2020-08-26
Last modified: 2026-06-17

Description

An Authentication Bypass vulnerability in the Published Area of the web conferencing component of Mitel MiCollab AWV before 8.1.2.4 and 9.x before 9.1.3 could allow an unauthenticated attacker to gain access to unauthorized information due to insufficient access validation. A successful exploit could allow an attacker to access sensitive shared files.

Frequently asked questions

What is CVE-2020-11797?: An Authentication Bypass vulnerability in the Published Area of the web conferencing component of Mitel MiCollab AWV before 8.1.2.4 and 9.x before 9.1.3 could allow an unauthenticated attacker to gain access to unauthorized information due to insufficient access validation. A successful exploit could allow an attacker to access sensitive shared files.
How severe is CVE-2020-11797?: CVE-2020-11797 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2020-11797 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (64th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-11797?: CVE-2020-11797 affects Mitel Micollab Audio, Web & Video Conferencing. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-11797?: 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-2020-11797 published?: CVE-2020-11797 was published on 2020-08-26 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:mitel:micollab_audio\,_web_\&_video_conferencing:*:*:*:*:*:*:*:*

More vulnerabilities in Mitel Micollab Audio, Web & Video Conferencing

CVE-2019-19608 — Critical (CVSS 9.8): A SQL injection vulnerability in in the web conferencing component of Mitel MiCollab AWV before 8.1.2.2 could allow an…
CVE-2019-19607 — Critical (CVSS 9.8): A SQL injection vulnerability in the web conferencing component of Mitel MiCollab AWV before 8.1.2.2 could allow an…
CVE-2019-12165 — Critical (CVSS 9.8): MiCollab 7.3 PR2 (7.3.0.204) and earlier, 7.2 (7.2.2.13) and earlier, and 7.1 (7.1.0.57) and earlier and MiCollab AWV…
CVE-2019-19371 — Medium (CVSS 6.1): A cross-site scripting (XSS) vulnerability in the web conferencing component of Mitel MiCollab AWV before 8.1.2.2 could…
CVE-2020-11798 — Medium (CVSS 5.3): A Directory Traversal vulnerability in the web conference component of Mitel MiCollab AWV before 8.1.2.4 and 9.x before…

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