CWE-823

Use of Out-of-range Pointer Offset

The product performs pointer arithmetic on a valid pointer, but it uses an offset that can point outside of the intended range of valid memory locations for the resulting pointer.

CVE-2026-34193 (GCVE-0-2026-34193)

Vulnerability from cvelistv5 – Published: 2026-06-01 11:14 – Updated: 2026-06-01 14:29
VLAI
Title
GPU DDK - Arbitrary write via UFO updates due insufficient pointer validation in rgxfw_to_ptr()
Summary
Kernel software installed and running inside a Guest/Host VM may post improper commands to the GPU Firmware to trigger a write of data outside the intended GPU memory. A logic error in the address translation allowed a compromised Host (Kernel) to perform arbitrary writes to firmware memory.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-823 - CWE - CWE-823: Use of Out-of-range Pointer Offset (4.16)
Assigner
Impacted products
Vendor Product Version
Imagination Technologies Graphics DDK Affected: 1.18 RTM (custom)
Affected: 23.2 RTM (custom)
Affected: 24.2 RTM (custom)
Affected: 25.1 RTM , ≤ 25.3 RTM (custom)
Affected: 26.1 RTM1 (custom)
Unaffected: 26.1 RTM2 (custom)
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Show details on NVD website

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CVE-2026-41907 (GCVE-0-2026-41907)

Vulnerability from cvelistv5 – Published: 2026-04-24 18:09 – Updated: 2026-04-27 13:35
VLAI
Title
uuid: Missing buffer bounds check in `v3`/`v5`/`v6` when `buf` is provided
Summary
uuid is for the creation of RFC9562 (formerly RFC4122) UUIDs. Prior to 14.0.0, v3, v5, and v6 accept external output buffers but do not reject out-of-range writes (small buf or large offset). This allows silent partial writes into caller-provided buffers. This vulnerability is fixed in 14.0.0.
SSVC
Exploitation: poc Automatable: yes Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
  • CWE-823 - Use of Out-of-range Pointer Offset
  • CWE-787 - Out-of-bounds Write
Assigner
References
Impacted products
Vendor Product Version
uuidjs uuid Affected: < 14.0.0
Create a notification for this product.
Show details on NVD website

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CVE-2026-42946 (GCVE-0-2026-42946)

Vulnerability from cvelistv5 – Published: 2026-05-13 14:12 – Updated: 2026-05-13 16:06
VLAI
Title
NGINX ngx_http_scgi_module and ngx_http_uwsgi_module vulnerability
Summary
A vulnerability exists in the ngx_http_scgi_module and ngx_http_uwsgi_module modules that may result in excessive memory allocation or an over-read of data. When scgi_pass or uwsgi_pass is configured, an unauthenticated attacker with man-in-the-middle (MITM) ability to control responses from an upstream server may be able to read the memory of the NGINX worker process or restart it.  Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-789 - Memory Allocation with Excessive Size Value
  • CWE-823 - Use of Out-of-range Pointer Offset
Assigner
f5
References
URL Tags
https://my.f5.com/manage/s/article/K000161027 vendor-advisorypatch
Impacted products
Vendor Product Version
F5 NGINX Plus Unaffected: R37 , < * (custom)
Affected: R36 , < R36 P4 (custom)
Affected: R32 , < R32 P6 (custom)
Create a notification for this product.
F5 NGINX Open Source Unaffected: 1.31.0 , < * (semver)
Affected: 0.8.42 , < 1.30.1 (semver)
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Date Public
2026-05-13 14:00
Credits
F5 acknowledges Zhenpeng (Leo) Lin of depthfirst for bringing this issue to our attention and following the highest standards of coordinated disclosure.
Show details on NVD website

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No mitigation information available for this CWE.

CAPEC-129: Pointer Manipulation

This attack pattern involves an adversary manipulating a pointer within a target application resulting in the application accessing an unintended memory location. This can result in the crashing of the application or, for certain pointer values, access to data that would not normally be possible or the execution of arbitrary code. Since pointers are simply integer variables, Integer Attacks may often be used in Pointer Attacks.

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