CVE-2026-38638: n/a
Description
CVE-2026-38638 is a high-severity vulnerability in the with_argv function of relibc that allows attackers to cause a Denial of Service (DoS) via crafted input. The vulnerability does not affect confidentiality or integrity but impacts availability. No patch or official remediation information is currently available.
CVSS v3.1
Score 7.5high
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability exists in the with_argv function located in /unistd/mod.rs of relibc at commit 61f42d. An attacker can supply specially crafted input to trigger a Denial of Service condition, causing the affected software to become unavailable. The CVSS 3.1 base score is 7.5, reflecting network attack vector, low attack complexity, no privileges required, no user interaction, unchanged scope, no confidentiality or integrity impact, and high impact on availability. There is no known exploit in the wild and no vendor advisory or patch information has been provided.
Potential Impact
The impact is a Denial of Service, which affects the availability of the relibc component. There is no impact on confidentiality or integrity. The vulnerability can be exploited remotely without authentication or user interaction.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, consider limiting exposure of the affected component to untrusted inputs or networks where feasible.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- mitre
- Date Reserved
- 2026-04-06T00:00:00.000Z
- State
- PUBLISHED
Threat ID: 6a91ab5bacd9273b490abf9c
Added to database: 08/28/2026, 15:38:03 UTC
Last enriched: 09/08/2026, 03:52:39 UTC
Last updated: 10/13/2026, 18:48:19 UTC
Views: 72
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