CVE-2026-42799
CRITICALCVSS 9.8/10EPSS 0.28%
Last modified
CVE-2026-42799 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. Out-of-bounds read vulnerability in ASR Kestrel (nr_fw modules) allows Overflow Buffers. This vulnerability is associated with program files Code/Nr/nr_fw/RA/src/NrPwrCtrl.C. This issue affects Kestrel: before 2026/02/10.. EPSS estimates a 0.28% chance of exploitation in the next 30 days.
Description
Out-of-bounds read vulnerability in ASR Kestrel (nr_fw modules) allows Overflow Buffers. This vulnerability is associated with program files Code/Nr/nr_fw/RA/src/NrPwrCtrl.C. This issue affects Kestrel: before 2026/02/10.
Metrics
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Asrmicro | Asr1803 Firmware | < 1.216.002 |
References
- https://www.asrmicro.com/en/goods/psirt?cid=44Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
What is CVE-2026-42799?
Out-of-bounds read vulnerability in ASR Kestrel (nr_fw modules) allows Overflow Buffers.
This vulnerability is associated with program files Code/Nr/nr_fw/RA/src/NrPwrCtrl.C.
This issue affects Kestrel: before 2026/02/10.
How severe is CVE-2026-42799?
CVE-2026-42799 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 0.28% probability of exploitation in the next 30 days.
How do I fix CVE-2026-42799?
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.
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Are you affected by CVE-2026-42799?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST