Intel Hyperscan: Denial of service via untrusted pointer dereference
Summary
Hyperscan versions before v5.4.2.1 contain an untrusted pointer dereference within user applications running in Ring 3. A local attacker with an unprivileged, unauthenticated account can trigger a denial of service, such as a crash or hang of an application that uses Hyperscan. No user interaction is required, but the attack requires specific conditions and no special internal knowledge.
Affected
- Intel Hyperscan before v5.4.2.1
Fixed in
- Fixed in v5.4.2.1 (inferred from the stated affected range; verify in Intel advisory INTEL-SA-01511)
Workaround
- Unknown. Intel's advisory text was not available for review.
- Limit local access to trusted users until a fix is applied.
Exploitation
- Not known to be exploited (third-party tracker).
- No public proof of concept found.
Our recommendation
- Inventory all hosts and applications that bundle Hyperscan, including security appliances and third-party software.
- Apply the vendor update that includes Hyperscan v5.4.2.1 or later, or the updated product version from the software vendor.
- Restrict local access to trusted users and monitor for application crashes.
- Track Intel advisory INTEL-SA-01511 for updates.
- Priority: medium, following the CVSS score.
Public exploits
PoC-in-GitHub, Metasploit and Exploit-DB list nothing for this CVE.
Research sources
- Intel advisory INTEL-SA-01511 intel.com
- Intel security center advisory index www.intel.com
- Strix.ai CVE-2026-34489 www.strix.ai
- OffSeq radar CVE-2026-34489 radar.offseq.com
Researched and written up in English and German by an AI (Claude by Anthropic) based on NVD, CISA, EPSS and the sources listed. The vendor information is authoritative. Researched on 11 Nov 2026, 15:33.
Original description (NVD)
Untrusted pointer dereference for some Hyperscan before version v5.4.2.1 within Ring 3: User Applications may allow a denial of service. Unprivileged software adversary with an unauthenticated user combined with a low complexity attack may enable denial of service. This result may potentially occur via local access when attack requirements are present without special internal knowledge and requires no user interaction. The potential vulnerability may impact the confidentiality (none), integrity (low) and availability (high) of the vulnerable system, resulting in subsequent system confidentiality (none), integrity (none) and availability (none) impacts.
Sources
The tracker combines official, freely usable data sources – updated continuously:
- NVD (NIST) – CVEs, rating (CVSS), affected products
- CISA KEV – vulnerabilities confirmed by CISA as actively exploited
- CISA Vulnrichment – CISA assessment (SSVC) in the official CVE record
- FIRST EPSS – probability of exploitation
- Microsoft MSRC – Patch Tuesday: vulnerabilities, severity, updates
- PoC-in-GitHub – public proof-of-concept repositories
- Metasploit (Rapid7) – modules of the Metasploit Framework
- Exploit-DB (OffSec) – archive of public exploits (links only)
- Patch days: official vendor pages (linked per vendor) (Vendor patch days)
This product uses data from the NVD API but is not endorsed or certified by the NVD. EPSS data © FIRST.org.
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