CWE-129Variant

Improper Validation of Array Index

Draft in the CWE catalog · 312 CVEs mapped

312
CVEs mapped
7.8
Median CVSS
What it is

The product uses untrusted input when calculating or using an array index, but the product does not validate or incorrectly validates the index to ensure the index references a valid position within the array.

Recent examples
8.7cvss
CVE-2026-0799

CVE-2026-0799 - HIGH Severity Vulnerability

In BPF instructions that load/store a value from/to a scratch memory register the register index is an unsigned 32-bit integer and must not exceed 15, but libpcap BPF interpreter does not validate the value. In particular uncommon use cases a crafted filter program can cause the interpreter to try reading and writing the OS process memory in the 16GiB starting at the current stack frame on 64-bit architectures and in the entire address space on 32-bit architectures.

HIGHno explanation yet
epss
none
CVE-2026-57159

CVE-2026-57159 - UNKNOWN Severity Vulnerability

PJSIP is a free and open source multimedia communication library written in C. Prior to commit 673b978, a remote out-of-bounds read and write can occur in the SDP negotiator when the remote payload-type map maintenance feature is enabled. assign_pt_and_update_map() in pjmedia/src/pjmedia/sdp_neg.c uses payload-type numbers taken from a remote SDP offer or answer to index fixed-size internal tables without sufficient bounds validation, so a crafted remote SDP can cause memory access outside those tables. The practical impact is memory corruption and denial of service; code execution is not demonstrated. This path is only reached when PJMEDIA_SDP_NEG_MAINTAIN_REMOTE_PT_MAP is enabled. The default is disabled, so default builds are not affected; the feature is an interoperability option that integrating products may enable. This issue has been patched via commit 673b978.

no explanation yet
0%
epss
6.3cvss
CVE-2026-85084

CVE-2026-85084 - MEDIUM Severity Vulnerability

Out-of-bounds Write and Improper Validation of Array Index vulnerability in Samsung Open Source TizenFX Samsung/TizenFX allows Overflow Buffers.

MEDIUMno explanation yet
0%
epss
The record
Technical detail
CWE ID
CWE-129
Abstraction
Variant
Structure
Simple
Status
Draft
References (15)