How severe is CVE-2020-11876?

CVE-2020-11876 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-2020-11876 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (74th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-11876?

CVE-2020-11876 affects Zoom Meetings. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-11876?

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-2020-11876 published?

CVE-2020-11876 was published on 2020-04-17 and last updated on 2026-06-17.

CVE-2020-11876

CVE-2020-11876 is a high-severity vulnerability in Zoom Meetings 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. The underlying weakness is classified as CWE-327.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 2% (74th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-327
Affected product: Zoom Meetings
Published: 2020-04-17
Last modified: 2026-06-17

Description

airhost.exe in Zoom Client for Meetings 4.6.11 uses the SHA-256 hash of 0123425234234fsdfsdr3242 for initialization of an OpenSSL EVP AES-256 CBC context. NOTE: the vendor states that this initialization only occurs within unreachable code

Frequently asked questions

What is CVE-2020-11876?: airhost.exe in Zoom Client for Meetings 4.6.11 uses the SHA-256 hash of 0123425234234fsdfsdr3242 for initialization of an OpenSSL EVP AES-256 CBC context. NOTE: the vendor states that this initialization only occurs within unreachable code
How severe is CVE-2020-11876?: CVE-2020-11876 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-2020-11876 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (74th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-11876?: CVE-2020-11876 affects Zoom Meetings. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-11876?: 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-2020-11876 published?: CVE-2020-11876 was published on 2020-04-17 and last updated on 2026-06-17.

References

https://dev.io/posts/zoomzoo/

Affected products (1)

cpe:2.3:a:zoom:meetings:4.6.11:*:*:*:*:windows:*:*

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