How severe is CVE-2021-43746?

CVE-2021-43746 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2021-43746 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (75th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-43746?

CVE-2021-43746 affects Adobe Premiere Rush. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-43746?

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

When was CVE-2021-43746 published?

CVE-2021-43746 was published on 2021-12-20 and last updated on 2026-06-17.

CVE-2021-43746

CVE-2021-43746 is a medium-severity vulnerability in Adobe Premiere Rush with a CVSS 3.x base score of 5.5. 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-824.

Key facts

Severity: Medium (CVSS 3.x base score 5.5)
CVSS v2: 4.3
EPSS exploit prediction: 2% (75th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-824
Affected product: Adobe Premiere Rush
Published: 2021-12-20
Last modified: 2026-06-17

Description

Adobe Premiere Rush versions 1.5.16 (and earlier) allows access to an uninitialized pointer vulnerability that allows remote attackers to disclose sensitive information on affected installations. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the parsing of MP4 files. The issue results from the lack of proper initialization of memory prior to accessing it.

Frequently asked questions

What is CVE-2021-43746?: Adobe Premiere Rush versions 1.5.16 (and earlier) allows access to an uninitialized pointer vulnerability that allows remote attackers to disclose sensitive information on affected installations. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the parsing of MP4 files. The issue results from the lack of proper initialization of memory prior to accessing it.
How severe is CVE-2021-43746?: CVE-2021-43746 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2021-43746 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (75th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-43746?: CVE-2021-43746 affects Adobe Premiere Rush. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-43746?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-43746 published?: CVE-2021-43746 was published on 2021-12-20 and last updated on 2026-06-17.

References

https://helpx.adobe.com/security/products/premiere_rush/apsb21-101.html

Affected products (1)

cpe:2.3:a:adobe:premiere_rush:*:*:*:*:*:*:*:*

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