BlackBerry QNX 7.0/7.1/8.0 traceparser library decode input validation

CVSS Meta Temp Score
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Current Exploit Price (≈)
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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.
9.6$5k-$25k1.75+

Summaryinfo

A vulnerability, which was classified as very critical, was found in BlackBerry QNX 7.0/7.1/8.0. This affects the function decode of the component traceparser library. Executing a manipulation can lead to input validation. This vulnerability is tracked as CVE-2026-40272. The attack can be launched remotely. No exploit exists.

Detailsinfo

A vulnerability has been found in BlackBerry QNX 7.0/7.1/8.0 and classified as very critical. This vulnerability affects the function decode of the component traceparser library. The manipulation with an unknown input leads to a input validation vulnerability. The CWE definition for the vulnerability is CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

Improper Input Validation in the decode() function of the traceparser library could allow an attacker with a corrupted kernel trace event log (.kev) file, to execute arbitrary code or cause a crash in processes that use libtraceparser in QNX hosts or targets.

The advisory is shared for download at support.blackberry.com. This vulnerability was named CVE-2026-40272 since 04/10/2026. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Successful exploitation requires user interaction by the victim. There are known technical details, but no exploit is available. The current price for an exploit might be approx. USD $5k-$25k (estimation calculated on 07/29/2026).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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

Productinfo

Type

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 9.6
VulDB Meta Temp Score: 9.6

VulDB Base Score: 9.6
VulDB Temp Score: 9.6
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: Input validation
CWE: CWE-20
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

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

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

04/10/2026 CVE reserved
07/29/2026 +110 days Advisory disclosed
07/29/2026 +0 days VulDB entry created
07/29/2026 +0 days VulDB entry last update

Sourcesinfo

Advisory: support.blackberry.com
Status: Confirmed

CVE: CVE-2026-40272 (🔒)
GCVE (CVE): GCVE-0-2026-40272
GCVE (VulDB): GCVE-100-384232

Entryinfo

Created: 07/29/2026 20:22
Changes: 07/29/2026 20:22 (54)
Complete: 🔍
Cache ID: 216::103

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

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