CVE-2026-21733— GPU DDK - Incorrect flags validation in RGXDerivePTEProt8 can allow GPU to overwrite read-only shared memory (e.g. libc.so)
Possible ATT&CK Techniques 1AI
T1190 · Exploit Public-Facing ApplicationAffected Version Matrix 5
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Imagination Technologies | Graphics DDK | 1.18 RTM | affected |
23.2 RTM | affected | ||
24.1 RTM≤ 24.2 RTM | affected | ||
25.1 RTM≤ 25.3 RTM | affected | ||
26.1 RTM | unaffected |
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I. Basic Information for CVE-2026-21733
Vulnerability Information
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Vulnerability Title
GPU DDK - Incorrect flags validation in RGXDerivePTEProt8 can allow GPU to overwrite read-only shared memory (e.g. libc.so)
Source: CVE Program / CVE List V5
Vulnerability Description
Software installed and run as a non-privileged user may conduct improper GPU system calls to gain write permission to read-only wrapped user-mode memory and files. This is caused by improper handling of GPU memory reservation protections.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
不充分权限或特权的处理不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Imagination Graphics DDK 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Imagination Graphics DDK是英国Imagination公司的一款GPU驱动工具套件。 Imagination Graphics DDK存在安全漏洞，该漏洞源于GPU内存保留保护处理不当，可能导致以非特权用户身份运行的软件获得对只读内存和文件的写入权限。
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 |
|---|---|---|---|---|
| Imagination Technologies | Graphics DDK | 1.18 RTM | - |
II. Public POCs for CVE-2026-21733
| # | POC Description | Source Link | Shenlong Link |
|---|
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News Coverage for CVE-2026-21733 (1)
IV. Related Vulnerabilities
Same product: Graphics DDK
- CVE-2026-49746
GPU DDK - Dimension Mismatch and Integer Truncation in PMRDe - CVE-2026-45204
GPU DDK - Out of bounds memory access and kernel NULL pointe - CVE-2026-45198
GPU DDK - RGXFWIF_SYSINIT::sCorememDataStore is untrusted - CVE-2026-16280
GPU DDK - Integer overflow in _PMRLogicalOffsetToPhysicalOff - CVE-2026-49745
GPU DDK - Unvalidated sHWPerfCtlDMABuf GPU-VA, DMA-write int
Same vendor: Imagination Technologies
- CVE-2026-49746
GPU DDK - Dimension Mismatch and Integer Truncation in PMRDe - CVE-2026-45204
GPU DDK - Out of bounds memory access and kernel NULL pointe - CVE-2026-45198
GPU DDK - RGXFWIF_SYSINIT::sCorememDataStore is untrusted - CVE-2026-16280
GPU DDK - Integer overflow in _PMRLogicalOffsetToPhysicalOff - CVE-2026-49745
GPU DDK - Unvalidated sHWPerfCtlDMABuf GPU-VA, DMA-write int
Same weakness: CWE-280
- CVE-2026-58416
Fork-PR Actions task can read a third private repository via - CVE-2026-73239
Apache Allura: Missing permission checks IDOR - CVE-2026-18860
Velociraptor incorrect Org deletion permissions check - CVE-2026-11804
Program Module Vulnerability - CVE-2026-62393
Apache Kylin: Improper authorization in job information retr
V. Comments for CVE-2026-21733
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