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CWE-908 (对未经初始化资源的使用) — Vulnerability Class 180

180 vulnerabilities classified as CWE-908 (对未经初始化资源的使用). AI Chinese analysis included.

CWE-908 represents a critical software weakness where an application accesses or utilizes a resource that has not been properly initialized. This flaw typically arises when developers fail to set default values or allocate necessary memory before first use, leading to unpredictable system behavior. Attackers often exploit this vulnerability by triggering specific code paths that expose uninitialized data, potentially causing application crashes, invalid memory access errors, or information disclosure of sensitive residual data from previous operations. To mitigate this risk, developers must enforce strict initialization protocols, ensuring all variables, pointers, and objects are explicitly assigned valid states before any read or write operations occur. Implementing comprehensive static analysis tools and rigorous code reviews further helps identify these gaps, ensuring robust resource management and preventing the execution of undefined logic that could compromise system stability or security.

MITRE CWE Description
The product uses or accesses a resource that has not been initialized. When a resource has not been properly initialized, the product may behave unexpectedly. This may lead to a crash or invalid memory access, but the consequences vary depending on the type of resource and how it is used within the product.
Common Consequences (2)
Confidentiality Read Memory, Read Application Data
When reusing a resource such as memory or a program variable, the original contents of that resource may not be cleared before it is sent to an untrusted party.
Availability DoS: Crash, Exit, or Restart
The uninitialized resource may contain values that cause program flow to change in ways that the programmer did not intend.
Mitigations (4)
Implementation Explicitly initialize the resource before use. If this is performed through an API function or standard procedure, follow all required steps.
Implementation Pay close attention to complex conditionals that affect initialization, since some branches might not perform the initialization.
Implementation Avoid race conditions (CWE-362) during initialization routines.
Build and Compilation Run or compile the product with settings that generate warnings about uninitialized variables or data.
Examples (2)
Here, a boolean initiailized field is consulted to ensure that initialization tasks are only completed once. However, the field is mistakenly set to true during static initialization, so the initialization code is never reached.
private boolean initialized = true; public void someMethod() { if (!initialized) { // perform initialization tasks ... initialized = true; }
Bad · Java
The following code intends to limit certain operations to the administrator only.
$username = GetCurrentUser(); $state = GetStateData($username); if (defined($state)) { $uid = ExtractUserID($state); } # do stuff if ($uid == 0) { DoAdminThings(); }
Bad · Perl
CVE ID Title CVSS Severity Published
CVE-2026-19448 Vulnerabilities in IBM AIX and PowerVM VIOS — AIX 6.5 Medium 2026-08-20
CVE-2026-63381 Libevent: Dangling Pointer in `evbuffer_add_buffer_reference` — libevent 5.8 Medium 2026-08-20
CVE-2026-16827 Vulnerabilities in IBM AIX and PowerVM VIOS — AIX 5.9 Medium 2026-08-19
CVE-2026-58084 Kernel stack disclosure via timer_settime(2) — FreeBSD - - 2026-08-19
CVE-2026-49425 Kernel stack disclosure in 32-bit compatibility support — FreeBSD - - 2026-08-19
CVE-2026-49424 Kernel stack disclosure in Linux compatibility layer — FreeBSD - - 2026-08-19
CVE-2026-49423 Remote DOS via uninitialized memory access in KTLS receive — FreeBSD - - 2026-08-19
CVE-2026-76042 Google Chrome 资源管理错误漏洞 — Chrome - - 2026-08-18
CVE-2026-16868 IBM i is Affected By Multiple Vulnerabilities in NetServer — i 8.1 High 2026-08-13
CVE-2026-70459 rsync 3.0.0 < 3.5.0 Daemon Crash via Malformed File List Entry — rsync 5.3 Medium 2026-08-13
CVE-2026-0301 PAN-OS: Information Disclosure Vulnerability in URL Filtering — Cloud NGFW 0.5 Low 2026-08-13
CVE-2026-68799 Microsoft Excel Information Disclosure Vulnerability — Microsoft 365 Apps for Enterprise 5.5 Medium 2026-08-11
CVE-2026-62709 Windows GDI+ Information Disclosure Vulnerability — Windows 10 Version 1607 5.5 Medium 2026-08-11
CVE-2026-70317 Microsoft Office Information Disclosure Vulnerability — Microsoft 365 Apps for Enterprise 5.5 Medium 2026-08-11
CVE-2026-62740 Windows Imaging Component Information Disclosure Vulnerability — Windows 10 Version 1607 5.5 Medium 2026-08-11
CVE-2026-59137 Windows Event Logging Service Information Disclosure Vulnerability — Windows 10 Version 1607 5.5 Medium 2026-08-11
CVE-2026-59136 Microsoft COM for Windows Information Disclosure Vulnerability — Windows 10 Version 1607 5.5 Medium 2026-08-11
CVE-2026-58247 Memory Corruption vulnerability in SAP ABAP Platform — SAP ABAP Platform 5.3 Medium 2026-08-11
CVE-2026-6368 wordexp with WRDE_APPEND can return or use invalid memory — glibc 2.1 Low 2026-08-10
CVE-2026-70631 FFmpeg 0.5 < 9.0 Uninitialized Heap Memory Read in TIFF Decoder — FFmpeg 5.5 Medium 2026-08-06
CVE-2026-70630 FFmpeg 3.0 < 9.0 Uninitialized Heap Memory Read in Screenpresso Decoder — FFmpeg 5.5 Medium 2026-08-06
CVE-2026-70629 FFmpeg 3.0 < 9.0 Uninitialized Heap Memory Read in RSCC Decoder — FFmpeg 5.5 Medium 2026-08-06
CVE-2026-68744 Sssd: sssd: nss responder uninitialized heap disclosure in initgroups reply — Red Hat Enterprise Linux 10 3.3 Low 2026-08-04
CVE-2026-66038 FFmpeg LCL/ZLIB Video Decoder Information Disclosure via lcldec.c — FFmpeg 6.5 Medium 2026-07-24
CVE-2026-60005 NGINX ngx_http_slice_module vulnerability — NGINX Plus 8.2 High 2026-07-15
CVE-2026-58546 Windows Remote Desktop Client Information Disclosure Vulnerability — Windows 10 Version 1607 6.5 Medium 2026-07-14
CVE-2026-58535 Windows Remote Desktop Client Information Disclosure Vulnerability — Windows 10 Version 1607 6.5 Medium 2026-07-14
CVE-2026-58533 Windows Remote Desktop Client Information Disclosure Vulnerability — Windows 10 Version 1607 6.5 Medium 2026-07-14
CVE-2026-57982 Windows Remote Desktop Protocol (RDP) Information Disclosure Vulnerability — Windows 10 Version 1607 6.5 Medium 2026-07-14
CVE-2026-57084 Windows File Explorer Information Disclosure Vulnerability — Windows 10 Version 1607 5.5 Medium 2026-07-14

Vulnerabilities classified as CWE-908 (对未经初始化资源的使用) represent 180 CVEs. The CWE taxonomy describes the weakness; review individual CVEs for product-specific impact.