Imagination Graphics DDK up to 26.1 RTM1 Performance Counters use after free

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
8.4$0-$5k1.14-

Summaryinfo

A vulnerability was found in Imagination Graphics DDK up to 1.18 RTM1/23.2 RTM1/24.2 RTM2/25.3 RTM/26.1 RTM1 and classified as very critical. Affected by this vulnerability is an unknown functionality of the component Performance Counters. Executing a manipulation can lead to use after free. The identification of this vulnerability is CVE-2026-15466. The attack can only be executed locally. There is no exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability classified as very critical was found in Imagination Graphics DDK up to 1.18 RTM1/23.2 RTM1/24.2 RTM2/25.3 RTM/26.1 RTM1. This vulnerability affects an unknown code of the component Performance Counters. The manipulation with an unknown input leads to a use after free vulnerability. The CWE definition for the vulnerability is CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

Software installed and run as a non-privileged user may conduct improper GPU system calls to cause race condition in hardware performance counters buffer’s destruction path leading to read and/or write UAF. The race condition in the destruction path could lead to reference counter being decremented in non-atomical way allowing other code paths using a freed object to read and/or write kernel heap memory.

The advisory is shared for download at imaginationtech.com. This vulnerability was named CVE-2026-15466 since 07/10/2026. The exploitation appears to be easy. The attack needs to be approached locally. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 10/30/2026).

Upgrading to version 1.18 RTM2, 23.2 RTM2 or 26.1 RTM2 eliminates this vulnerability.

VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.8
VulDB Meta Temp Score: 8.4

VulDB Base Score: 8.8
VulDB Temp Score: 8.4
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Use after free
CWE: CWE-416 / CWE-119
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: No

Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Graphics DDK 1.18 RTM2/23.2 RTM2/26.1 RTM2

Timelineinfo

07/10/2026 CVE reserved
10/30/2026 +112 days Advisory disclosed
10/30/2026 +0 days VulDB entry created
10/30/2026 +0 days VulDB entry last update

Sourcesinfo

Advisory: imaginationtech.com
Status: Confirmed

CNA: imaginationtech
CVE: CVE-2026-15466 (🔒)

GCVE (CVE): GCVE-0-2026-15466
GCVE (VulDB): GCVE-100-428824

Entryinfo

Created: 10/30/2026 02:39
Changes: 10/30/2026 02:39 (54)
Complete: 🔍
Cache ID: 216::103

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