CVE-2021-3435
LOWCVSS 3.3/10EPSS 0.21%
Last modified
CVE-2021-3435 is a low-severity vulnerability rated 3.3/10 on the CVSS scale. Information leakage in le_ecred_conn_req(). Zephyr versions >= v2.4.0 Use of Uninitialized Resource (CWE-908). EPSS estimates a 0.21% chance of exploitation in the next 30 days.
Description
Information leakage in le_ecred_conn_req(). Zephyr versions >= v2.4.0 Use of Uninitialized Resource (CWE-908). For more information, see https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-xhg3-gvj6-4rqh
Metrics
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Zephyrproject | Zephyr | >= 2.4.0, < 2.6.0 |
References
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2021-3435?
Information leakage in le_ecred_conn_req(). Zephyr versions >= v2.4.0 Use of Uninitialized Resource (CWE-908). For more information, see https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-xhg3-gvj6-4rqh
How severe is CVE-2021-3435?
CVE-2021-3435 has a CVSS score of 3.3/10 (LOW severity). The EPSS model estimates a 0.21% probability of exploitation in the next 30 days.
How do I fix CVE-2021-3435?
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 2021
- CVE-2021-34343A stack buffer overflow vulnerability has been reported to a…7.2
- CVE-2021-34344A stack buffer overflow vulnerability has been reported to a…9.8
- CVE-2021-34345A stack buffer overflow vulnerability has been reported to a…9.8
- CVE-2021-34346A stack buffer overflow vulnerability has been reported to a…9.8
- CVE-2021-34348A command injection vulnerability has been reported to affec…9.8
- CVE-2021-34349A command injection vulnerability has been reported to affec…7.2
- CVE-2021-34351A command injection vulnerability has been reported to affec…9.8
- CVE-2021-34352A command injection vulnerability has been reported to affec…9.8
- CVE-2021-34354A cross-site scripting (XSS) vulnerability has been reported…5.4
- CVE-2021-34355A cross-site scripting (XSS) vulnerability has been reported…5.4
- CVE-2021-34356A cross-site scripting (XSS) vulnerability has been reported…5.4
- CVE-2021-34357A cross-site scripting (XSS) vulnerability has been reported…6.1
Are you affected by CVE-2021-3435?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST