Dashboard / CVE-2026-54436

CVE-2026-54436

HIGH
MEDIUM Priority: 0.01 BB Relevance: 40/100
Published: 2026-11-10 Modified: 2026-11-12 First seen: 2026-11-10 Status: active

Attack Surface

No Auth No Interaction Conf. Impact Integ. Impact

CVSS Vector Breakdown

AV: Local
AC: High
PR: None
UI: None
S: Unchanged
C: High
I: High
A: High

Description

Heap-based Buffer Overflow in the io-char library's DCMD_CHR_WAITINFO devctl() handler could allow an attacker with local access to cause data tampering, arbitrary code execution, or a crash in the Character I/O device driver.

Weakness Classification (1)

Affected Software (3)

VendorProductVersion
BlackBerry Ltd QNX Software Development Platform cpe:2.3:a:blackberry:qnx_software_development_platform:8.0:*:*:*:*:*:*:*
BlackBerry Ltd QNX Software Development Platform cpe:2.3:a:blackberry:qnx_software_development_platform:7.1:*:*:*:*:*:*:*
BlackBerry Ltd QNX Software Development Platform cpe:2.3:a:blackberry:qnx_software_development_platform:7.0:*:*:*:*:*:*:*

References & Advisories (1)

Bug Bounty Relevance

40 / 100
✓ No authentication
✓ No user interaction

CVSS Score

7.4 / 10.0 v3.1
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS — Exploitation Probability

0.11%
Raw Score 0.001120
Percentile 1.4%
Date 2026-11-14

EPSS Trend

2026-11-14
0.00112
2026-11-13
0.00112
2026-11-12
0.00112

Intelligence Sources

mitre ref →
nvd ref →

External Links