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CVE-2026-34639— Media Encoder | Out-of-bounds Write (CWE-787)

Quick assessment

Affected
Adobe Adobe Media Encoder
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Adobe Media Encoder是美国奥多比（Adobe）公司的一款音、视频编码应用程序。 Adobe Media Encoder 26.0.2版本、25.6.4版本及之前版本存在缓冲区错误漏洞，该漏洞源于越界写入，可能导致在当前用户环境中执行任意代码，利用此漏洞需要用户交互，受害者必须打开恶意文件。

CVSS 7.8 · High EPSS 0.26% · P16

Affected Version Matrix 4

VendorProduct Version RangeStatus
Adobe Adobe Media Encoder ≤ 26.0.2 affected
26.2 unaffected
≤ 25.6.4 affected
25.6.5 unaffected
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I. Basic Information for CVE-2026-34639

Vulnerability Information
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Vulnerability Title
Media Encoder | Out-of-bounds Write (CWE-787)
Source: CVE Program / CVE List V5
Vulnerability Description
Media Encoder versions 26.0.2, 25.6.4 and earlier are affected by an out-of-bounds write vulnerability that could result in 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
跨界内存写
Source: CVE Program / CVE List V5
Vulnerability Title
Adobe Media Encoder 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Adobe Media Encoder是美国奥多比（Adobe）公司的一款音、视频编码应用程序。 Adobe Media Encoder 26.0.2版本、25.6.4版本及之前版本存在缓冲区错误漏洞，该漏洞源于越界写入，可能导致在当前用户环境中执行任意代码，利用此漏洞需要用户交互，受害者必须打开恶意文件。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Adobe Adobe Media Encoder 0 ~ 26.0.2 -

II. Public POCs for CVE-2026-34639

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III. Intelligence Information for CVE-2026-34639

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Vendor Advisories for CVE-2026-34639 (1)

Same Patch Batch · Adobe · 2026-05-12 · 51 CVEs total

CVE-2026-34659 9.6 CRITICAL Adobe Connect | Deserialization of Untrusted Data (CWE-502)
CVE-2026-34660 9.3 CRITICAL Adobe Connect | Incorrect Authorization (CWE-863)
CVE-2026-34653 8.7 HIGH Adobe Commerce | Improper Limitation of a Pathname to a Restricted Directory ('Path Traver
CVE-2026-34686 8.7 HIGH Adobe Commerce | Cross-site Scripting (Stored XSS) (CWE-79)
CVE-2026-34676 7.8 HIGH Substance3D - Painter | Out-of-bounds Write (CWE-787)
CVE-2026-34636 7.8 HIGH Premiere Pro | Out-of-bounds Write (CWE-787)
CVE-2026-34644 7.8 HIGH After Effects | Integer Overflow or Wraparound (CWE-190)
CVE-2026-34661 7.8 HIGH Illustrator | Out-of-bounds Write (CWE-787)
CVE-2026-34675 7.8 HIGH Substance3D - Painter | Out-of-bounds Write (CWE-787)
CVE-2026-34643 7.8 HIGH After Effects | Out-of-bounds Write (CWE-787)
CVE-2026-34642 7.8 HIGH After Effects | Heap-based Buffer Overflow (CWE-122)
CVE-2026-34640 7.8 HIGH Media Encoder | Integer Overflow or Wraparound (CWE-190)
CVE-2026-34637 7.8 HIGH Premiere Pro | Out-of-bounds Write (CWE-787)
CVE-2026-34638 7.8 HIGH Premiere Pro | Use After Free (CWE-416)
CVE-2026-34687 7.8 HIGH Illustrator | Heap-based Buffer Overflow (CWE-122)
CVE-2026-34683 7.8 HIGH Substance3D - Designer | Out-of-bounds Write (CWE-787)
CVE-2026-34684 7.8 HIGH Substance3D - Designer | Out-of-bounds Write (CWE-787)
CVE-2026-34681 7.8 HIGH Substance3D - Designer | Out-of-bounds Write (CWE-787)
CVE-2026-34682 7.8 HIGH Substance3D - Designer | Out-of-bounds Write (CWE-787)
CVE-2026-34690 7.8 HIGH After Effects | Stack-based Buffer Overflow (CWE-121)

Showing top 20 of 51 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: Adobe Media Encoder
Same vendor: Adobe
Same weakness: CWE-787

V. Comments for CVE-2026-34639

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