How severe is CVE-2021-28580?

CVE-2021-28580 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2021-28580 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 8% (94th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-28580?

CVE-2021-28580 affects Adobe Medium. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-28580?

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-2021-28580 published?

CVE-2021-28580 was published on 2021-09-08 and last updated on 2026-06-17.

CVE-2021-28580

CVE-2021-28580 is a high-severity vulnerability in Adobe Medium with a CVSS 3.x base score of 8.8. 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-120.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v2: 9.3
EPSS exploit prediction: 8% (94th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-120
Affected product: Adobe Medium
Published: 2021-09-08
Last modified: 2026-06-17

Description

Medium by Adobe version 2.4.5.331 (and earlier) is affected by a buffer overflow vulnerability when parsing a crafted file. An unauthenticated attacker could leverage this vulnerability to achieve remote code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.

Frequently asked questions

What is CVE-2021-28580?: Medium by Adobe version 2.4.5.331 (and earlier) is affected by a buffer overflow vulnerability when parsing a crafted file. An unauthenticated attacker could leverage this vulnerability to achieve remote code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.
How severe is CVE-2021-28580?: CVE-2021-28580 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2021-28580 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 8% (94th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-28580?: CVE-2021-28580 affects Adobe Medium. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-28580?: 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-2021-28580 published?: CVE-2021-28580 was published on 2021-09-08 and last updated on 2026-06-17.

References

https://helpx.adobe.com/security/products/medium/apsb21-34.html

Affected products (1)

cpe:2.3:a:adobe:medium:*:*:*:*:*:*:*:*

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