How severe is CVE-2021-28589?

CVE-2021-28589 has a CVSS 3.x base score of 3.3, rated low severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2021-28589 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (79th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-28589?

CVE-2021-28589 affects Adobe Media Encoder. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-28589?

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

When was CVE-2021-28589 published?

CVE-2021-28589 was published on 2021-08-20 and last updated on 2026-06-17.

CVE-2021-28589

CVE-2021-28589 is a low-severity vulnerability in Adobe Media Encoder with a CVSS 3.x base score of 3.3. 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-125.

Key facts

Severity: Low (CVSS 3.x base score 3.3)
CVSS v2: 6.8
EPSS exploit prediction: 2% (79th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-125
Affected product: Adobe Media Encoder
Published: 2021-08-20
Last modified: 2026-06-17

Description

Adobe Media Encoder version 15.2 (and earlier) is affected by an Out-of-bounds Read vulnerability when parsing a specially crafted file. 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 file.

Frequently asked questions

What is CVE-2021-28589?: Adobe Media Encoder version 15.2 (and earlier) is affected by an Out-of-bounds Read vulnerability when parsing a specially crafted file. 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 file.
How severe is CVE-2021-28589?: CVE-2021-28589 has a CVSS 3.x base score of 3.3, rated low severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2021-28589 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (79th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-28589?: CVE-2021-28589 affects Adobe Media Encoder. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-28589?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-28589 published?: CVE-2021-28589 was published on 2021-08-20 and last updated on 2026-06-17.

References

https://helpx.adobe.com/security/products/media-encoder/apsb21-43.html

Affected products (1)

cpe:2.3:a:adobe:media_encoder:*:*:*:*:*:*:*:*

More vulnerabilities in Adobe Media Encoder

CVE-2019-8246 — Critical (CVSS 9.8): Adobe Media Encoder versions 13.1 and earlier have an out-of-bounds write vulnerability. Successful exploitation could…
CVE-2019-7842 — High (CVSS 8.8): Adobe Media Encoder version 13.0.2 has a use-after-free vulnerability. Successful exploitation could lead to remote…
CVE-2026-34640 — High (CVSS 7.8): Media Encoder versions 26.0.2, 25.6.4 and earlier are affected by an Integer Overflow or Wraparound vulnerability that…
CVE-2026-34639 — High (CVSS 7.8): Media Encoder versions 26.0.2, 25.6.4 and earlier are affected by an out-of-bounds write vulnerability that could…
CVE-2025-27195 — High (CVSS 7.8): Media Encoder versions 25.1, 24.6.4 and earlier are affected by a Heap-based Buffer Overflow vulnerability that could…
CVE-2025-27194 — High (CVSS 7.8): Media Encoder versions 25.1, 24.6.4 and earlier are affected by an out-of-bounds write vulnerability that could result…

All CVEs affecting Adobe Media Encoder →

Other CWE-125 (Out-of-bounds Read) vulnerabilities

CVE-2026-24826 — Critical (CVSS 10.0): Out-of-bounds Write, Divide By Zero, NULL Pointer Dereference, Use of Uninitialized Resource, Out-of-bounds Read,…
CVE-2024-22004 — Critical (CVSS 10.0): Due to length check, an attacker with privilege access on a Linux Nonsecure operating system can trigger a…
CVE-2021-41556 — Critical (CVSS 10.0): sqclass.cpp in Squirrel through 2.2.5 and 3.x through 3.1 allows an out-of-bounds read (in the core interpreter) that…
CVE-2021-21777 — Critical (CVSS 10.0): An information disclosure vulnerability exists in the Ethernet/IP UDP handler functionality of EIP Stack Group OpENer…
CVE-2017-14451 — Critical (CVSS 10.0): An exploitable out-of-bounds read vulnerability exists in libevm (Ethereum Virtual Machine) of CPP-Ethereum. A…
CVE-2013-0767 — Critical (CVSS 10.0): The nsSVGPathElement::GetPathLengthScale function in Mozilla Firefox before 18.0, Firefox ESR 10.x before 10.0.12 and…

Browse all CWE-125 (Out-of-bounds Read) vulnerabilities →