CVE-2026-88807— libXrender RenderQueryPictFormats Reply Heap-based Buffer Overflow
Quick assessment
Affected
X.org libXrender
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.
libXrender 在 0.9.13 之前版本中， 函数存在堆溢出漏洞，恶意 X 服务器可利用该漏洞向已连接的 X 客户端注入并执行代码。
Affected Version Matrix 1
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| X.org | libXrender | < 0.9.13 |
affected |
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I. Basic Information for CVE-2026-88807
Vulnerability Information
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Vulnerability Title
libXrender RenderQueryPictFormats Reply Heap-based Buffer Overflow
Source: CVE Program / CVE List V5
Vulnerability Description
A heap overflow in libXrender before 0.9.13 in RenderQueryPictFormats could be used by malicious X servers to inject code into attached X clients.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
Source: CVE Program / CVE List V5
Vulnerability Type
堆缓冲区溢出
Source: CVE Program / CVE List V5
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| X.org | libXrender | 0 ~ 0.9.13 | - |
|
II. Public POCs for CVE-2026-88807
| # | POC Description | Source Link | Shenlong Link |
|---|
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Other References for CVE-2026-88807 (1)
-
🔗 Sign in · GitLab patch
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V. Comments for CVE-2026-88807
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