PatchTheCVECVE-2024-32017: RIOT is a real-time multi-threading operating system that supports a range of devices that are typically 8-bit
CVE-2024-32017 is a critical-severity flaw (CVSS 9.8) affecting riot. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
RIOT is a real-time multi-threading operating system that supports a range of devices that are typically 8-bit, 16-bit and 32-bit microcontrollers. The size check in the `gcoap_dns_server_proxy_get()` function contains a small typo that may lead to a buffer overflow in the subsequent `strcpy()`. In detail, the length of the `_uri` string is checked instead of the length of the `_proxy` string. The `_gcoap_forward_proxy_copy_options()` function do
Why this priority
- Critical severity
- Public exploit reference
- Remotely exploitable, no login, no user action
A fixed release or distro patch exists.
Risk facts
| CVSS score | 9.8 (Critical) |
| Attack vector | Network (remote) |
| Attack complexity | Low |
| Privileges needed | None |
| User interaction | None |
| EPSS exploit chance | 1.6% (top 25%) |
| CISA exploited list | No |
| Weakness | CWE-120 |
| Published | 2024-05-01 |
| Last modified | 2026-06-17 |
Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2024-32017?
riot: upgrade to newer than 2024.01. Exact commands for each OS are on this page.
Is CVE-2024-32017 being exploited?
CVE-2024-32017 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2024-32017 affect?
CVE-2024-32017 affects riot. Severity is critical (CVSS 9.8). RIOT is a real-time multi-threading operating system that supports a range of devices that are typically 8-bit, 16-bit and 32-bit microcontrollers. The size check in the `gcoap_dns_server_proxy_get()` function contains a small typo that may
How urgent is CVE-2024-32017?
Priority 63/100. Critical severity; Public exploit reference; Remotely exploitable, no login, no user action
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