CVE-2026-38641
Relibc DSO Mmap And Copy Denial of Service
Description
An issue in the DSO::mmap_and_copy function of relibc commit 61f42d allows attackers to cause a Denial of Service (DoS) via loading a crafted shared library.
INFO
Published Date :
June 26, 2026, 9:16 p.m.
Last Modified :
June 29, 2026, 7:27 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
Affected Products
The following products are affected by CVE-2026-38641
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | |||||
| CVSS 3.1 | HIGH | 134c704f-9b21-4f2e-91b3-4a467353bcc0 |
Solution
- Update relibc to the latest version.
- Apply the provided patch for relibc commit 61f42d.
- Review shared library loading processes.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-38641.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-38641 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-38641
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-38641 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-38641 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Jun. 29, 2026
Action Type Old Value New Value Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Added CWE CWE-404 Added Reference https://gitlab.redox-os.org/redox-os/relibc/-/work_items/263 Added SSVC {'id': 'CVE-2026-38641', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'poc'}, {'automatable': 'yes'}, {'technicalImpact': 'partial'}], 'version': '2.0.3', 'timestamp': '2026-06-29T13:45:34.466296Z'} -
New CVE Received by [email protected]
Jun. 26, 2026
Action Type Old Value New Value Added Affected [{'vendor': 'n/a', 'product': 'n/a', 'versions': [{'status': 'affected', 'version': 'n/a'}]}] Added Description An issue in the DSO::mmap_and_copy function of relibc commit 61f42d allows attackers to cause a Denial of Service (DoS) via loading a crafted shared library. Added Reference https://github.com/Marsman1996/pocs/tree/master/redox/CVE-2026-38641 Added Reference https://gitlab.redox-os.org/redox-os/relibc/-/issues/263 Added Reference https://gitlab.redox-os.org/redox-os/relibc/-/merge_requests/1046 Added Reference https://gitlab.redox-os.org/redox-os/relibc/-/work_items/263