CVE-2023-26964
HIGHCVSS 7.5/10EPSS 1.11%
Last modified
CVE-2023-26964 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. An issue was discovered in hyper v0.13.7. h2-0.2.4 Stream stacking occurs when the H2 component processes HTTP2 RST_STREAM frames. EPSS estimates a 1.11% chance of exploitation in the next 30 days.
Description
An issue was discovered in hyper v0.13.7. h2-0.2.4 Stream stacking occurs when the H2 component processes HTTP2 RST_STREAM frames. As a result, the memory and CPU usage are high which can lead to a Denial of Service (DoS).
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Hyper | H2 | 0.2.4 |
| Hyper | Hyper | 0.13.7 |
References
- https://github.com/hyperium/hyper/issues/2877Exploit, Issue Tracking
- https://github.com/hyperium/hyper/issues/2877Exploit, Issue Tracking
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2023-26964?
An issue was discovered in hyper v0.13.7. h2-0.2.4 Stream stacking occurs when the H2 component processes HTTP2 RST_STREAM frames. As a result, the memory and CPU usage are high which can lead to a Denial of Service (DoS).
How severe is CVE-2023-26964?
CVE-2023-26964 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 1.11% probability of exploitation in the next 30 days.
How do I fix CVE-2023-26964?
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.
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Are you affected by CVE-2023-26964?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST