# Redox OS Relibc vulnerabilities

Source: https://junglewise.ai/threats/technologies/relibc  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Updated: 9 November 2026, 03:07 UTC. Rebuilt every hour.  
Data: https://junglewise.ai/threats/technologies/relibc.json  
License: CC BY 4.0 with a link back

Junglewise Threat Intelligence has tracked 6 vulnerabilities in Redox OS Relibc: 0 in the last 7 days and 2 in the last 90 days, 0 of them critical and 0 exploited in the wild. The most recent, CVE-2026-38638, was published on 28 August 2026. Nothing was published in the last eight weeks.

## Counts

- Last 7 days: 0
- Last 30 days: 0
- Last 90 days: 2
- All time: 6 (0 critical, 0 exploited in the wild)

## About Redox OS Relibc

A C standard library written in Rust for the Redox OS and Linux.

## Latest Redox OS Relibc vulnerabilities

- [CVE-2026-38638: relibc index out of bounds in with_argv](https://junglewise.ai/threats/cve-2026-38638-relibc-index-out-of-bounds-in-with-argv) (high, CVSS 7.5, published 28 Aug 2026)
- [CVE-2026-38636: relibc seekdir() denial of service via invalid offset](https://junglewise.ai/threats/cve-2026-38636-relibc-seekdir-denial-of-service-via-invalid-offset) (high, CVSS 7.5, published 28 Aug 2026)
- [CVE-2026-38641: Redox OS relibc denial of service in DSO::mmap_and_copy](https://junglewise.ai/threats/cve-2026-38641-redox-os-relibc-denial-of-service-in-dso-mmap-and-copy) (info, published 26 Jun 2026)
- [CVE-2026-38639: Redox OS relibc Denial of Service in strptime via multibyte characters](https://junglewise.ai/threats/cve-2026-38639-redox-os-relibc-denial-of-service-in-strptime-via-multibyte) (info, published 26 Jun 2026)
- [CVE-2026-38640: Redox OS relibc Denial of Service in __assert_fail](https://junglewise.ai/threats/cve-2026-38640-redox-os-relibc-denial-of-service-in-assert-fail) (info, CVSS 5.5, published 25 Jun 2026)
- [CVE-2026-38637: Redox OS relibc Denial of Service in pthread_rwlockattr_setpshared](https://junglewise.ai/threats/cve-2026-38637-redox-os-relibc-denial-of-service-in-pthread-rwlockattr) (info, CVSS 4, published 25 Jun 2026)

## Most severe Redox OS Relibc vulnerabilities

- [CVE-2026-38638: relibc index out of bounds in with_argv](https://junglewise.ai/threats/cve-2026-38638-relibc-index-out-of-bounds-in-with-argv) (high, CVSS 7.5, published 28 Aug 2026)
- [CVE-2026-38636: relibc seekdir() denial of service via invalid offset](https://junglewise.ai/threats/cve-2026-38636-relibc-seekdir-denial-of-service-via-invalid-offset) (high, CVSS 7.5, published 28 Aug 2026)
- [CVE-2026-38640: Redox OS relibc Denial of Service in __assert_fail](https://junglewise.ai/threats/cve-2026-38640-redox-os-relibc-denial-of-service-in-assert-fail) (info, CVSS 5.5, published 25 Jun 2026)
- [CVE-2026-38637: Redox OS relibc Denial of Service in pthread_rwlockattr_setpshared](https://junglewise.ai/threats/cve-2026-38637-redox-os-relibc-denial-of-service-in-pthread-rwlockattr) (info, CVSS 4, published 25 Jun 2026)
- [CVE-2026-38641: Redox OS relibc denial of service in DSO::mmap_and_copy](https://junglewise.ai/threats/cve-2026-38641-redox-os-relibc-denial-of-service-in-dso-mmap-and-copy) (info, published 26 Jun 2026)
- [CVE-2026-38639: Redox OS relibc Denial of Service in strptime via multibyte characters](https://junglewise.ai/threats/cve-2026-38639-redox-os-relibc-denial-of-service-in-strptime-via-multibyte) (info, published 26 Jun 2026)

## Vulnerabilities per week

Nothing was published in the last eight weeks.

| Week of | Vulns | Critical | Exploited |
| --- | --- | --- | --- |
| 17 Aug 2026 | 0 | 0 | 0 |
| 24 Aug 2026 | 2 | 0 | 0 |
| 31 Aug 2026 | 0 | 0 | 0 |
| 7 Sep 2026 | 0 | 0 | 0 |
| 14 Sep 2026 | 0 | 0 | 0 |
| 21 Sep 2026 | 0 | 0 | 0 |
| 28 Sep 2026 | 0 | 0 | 0 |
| 5 Oct 2026 | 0 | 0 | 0 |
| 12 Oct 2026 | 0 | 0 | 0 |
| 19 Oct 2026 | 0 | 0 | 0 |
| 26 Oct 2026 | 0 | 0 | 0 |
| 2 Nov 2026 | 0 | 0 | 0 |
| 9 Nov 2026 | 0 | 0 | 0 |

## Sources

NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories. Rebuilt every hour. Cite as: Junglewise Threat Intelligence, "Redox OS Relibc vulnerabilities", https://junglewise.ai/threats/technologies/relibc, 9 November 2026.