CVE-2026-54437
MEDIUMCVSS 6.2/10
Last modified
CVE-2026-54437 is a medium-severity vulnerability rated 6.2/10 on the CVSS scale. Improper Input Validation in the io-char library's DCMD_CHR_TCINJECTC devctl() handler could allow an attacker with local access to cause data tampering in the memory input buffer of the Character I/O device driver..
Description
Improper Input Validation in the io-char library's DCMD_CHR_TCINJECTC devctl() handler could allow an attacker with local access to cause data tampering in the memory input buffer of the Character I/O device driver.
Metrics
Weakness Enumeration
Affected Software
Source: CNA advisory (CVE.org). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| BlackBerry Ltd | QNX Software Development Platform | cpe:2.3:a:blackberry:qnx_software_development_platform:8.0:*:*:*:*:*:*:*; cpe:2.3:a:blackberry:qnx_software_development_platform:7.1:*:*:*:*:*:*:*; cpe:2.3:a:blackberry:qnx_software_development_platform:7.0:*:*:*:*:*:*:* |
References
Timeline
- Published
- Last Modified
- Status
- Received
Frequently Asked Questions
What is CVE-2026-54437?
Improper Input Validation in the io-char library's
DCMD_CHR_TCINJECTC devctl() handler could allow an attacker with local access
to cause data tampering in the memory input buffer of the Character I/O device
driver.
How severe is CVE-2026-54437?
CVE-2026-54437 has a CVSS score of 6.2/10 (MEDIUM severity).
How do I fix CVE-2026-54437?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2026
- CVE-2026-5443A heap buffer overflow vulnerability exists during the decod…9.8
- CVE-2026-54430liboauth2 is vulnerable to Server-Side Request Forgery in oa…5.1
- CVE-2026-54431In liboauth2 the Demonstrating Proof-of-Possession (DPoP) ve…5.1
- CVE-2026-54432Roundcube Webmail before 1.6.17 and 1.7.x before 1.7.2 allow…4.7
- CVE-2026-54433In Roundcube Webmail before 1.6.17 and 1.7.x before 1.7.2, t…10
- CVE-2026-54436Heap-based Buffer Overflow in the io-char library's DCMD_CHR…7.4
- CVE-2026-5444A heap buffer overflow vulnerability exists in the PAM image…7.1
- CVE-2026-54442Emissary is a P2P based data-driven workflow engine. Prior t…4.8
- CVE-2026-54443Dashy is a self-hostable personal dashboard. From 1.9.4 unti…5.9
- CVE-2026-54444Rejected reason: ]** REJECT ** DO NOT USE THIS CANDIDATE NUM…
- CVE-2026-54445vantage6 is an open-source infrastructure for privacy preser…6.9
- CVE-2026-54446NetLicensing MCP Server is a natural-language interface that…8.1
Are you affected by CVE-2026-54437?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST