How severe is CVE-2021-43012?

CVE-2021-43012 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2021-43012 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (78th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-43012?

CVE-2021-43012 affects Adobe Prelude. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-43012?

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-2021-43012 published?

CVE-2021-43012 was published on 2021-11-16 and last updated on 2026-06-17.

CVE-2021-43012

CVE-2021-43012 is a high-severity vulnerability in Adobe Prelude with a CVSS 3.x base score of 7.8. 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-119.

Key facts

Severity: High (CVSS 3.x base score 7.8)
CVSS v2: 9.3
EPSS exploit prediction: 2% (78th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-119
Affected product: Adobe Prelude
Published: 2021-11-16
Last modified: 2026-06-17

Description

Adobe Prelude version 10.1 (and earlier) are affected by a memory corruption vulnerability. An unauthenticated attacker could leverage this vulnerability to achieve arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious M4A file.

Frequently asked questions

What is CVE-2021-43012?: Adobe Prelude version 10.1 (and earlier) are affected by a memory corruption vulnerability. An unauthenticated attacker could leverage this vulnerability to achieve arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious M4A file.
How severe is CVE-2021-43012?: CVE-2021-43012 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2021-43012 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (78th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-43012?: CVE-2021-43012 affects Adobe Prelude. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-43012?: 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-2021-43012 published?: CVE-2021-43012 was published on 2021-11-16 and last updated on 2026-06-17.

References

https://helpx.adobe.com/security/products/prelude/apsb21-96.html

Affected products (1)

cpe:2.3:a:adobe:prelude:*:*:*:*:*:*:*:*

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