In ssh in OpenSSH before 10.5, a use-after-free for realloc data can occur if a certain pair of remote-forwarding operations are concurrent.
A use-after-free vulnerability exists in OpenSSH versions before 10.5, triggered by concurrent remote-forwarding operations. This flaw can cause memory corruption due to improper handling of realloc data. It affects OpenSSH implementations including Microsoft Azure Linux 3.0. No explicit patch information is provided. The severity is assessed as medium based on the described impact.
AI Analysis
Technical Summary
CVE-2026-73282 describes a use-after-free vulnerability in OpenSSH prior to version 10.5. The issue arises when a specific pair of remote-forwarding operations occur concurrently, leading to a use-after-free condition on realloc data structures. This vulnerability is categorized under CWE-416 (Use After Free). The affected products include OpenSSH versions before 10.5, including Microsoft Azure Linux 3.0. No vendor advisory or patch links are provided in the input data.
Potential Impact
The vulnerability can lead to memory corruption due to use-after-free conditions during concurrent remote-forwarding operations in OpenSSH. This may cause crashes or potentially allow an attacker to execute arbitrary code or disrupt service. However, no known exploits in the wild are reported, and the severity is medium.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a patch is available, avoid concurrent remote-forwarding operations that could trigger the vulnerability if feasible.
In ssh in OpenSSH before 10.5, a use-after-free for realloc data can occur if a certain pair of remote-forwarding operations are concurrent.
Description
A use-after-free vulnerability exists in OpenSSH versions before 10.5, triggered by concurrent remote-forwarding operations. This flaw can cause memory corruption due to improper handling of realloc data. It affects OpenSSH implementations including Microsoft Azure Linux 3.0. No explicit patch information is provided. The severity is assessed as medium based on the described impact.
Affected software
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Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-73282 describes a use-after-free vulnerability in OpenSSH prior to version 10.5. The issue arises when a specific pair of remote-forwarding operations occur concurrently, leading to a use-after-free condition on realloc data structures. This vulnerability is categorized under CWE-416 (Use After Free). The affected products include OpenSSH versions before 10.5, including Microsoft Azure Linux 3.0. No vendor advisory or patch links are provided in the input data.
Potential Impact
The vulnerability can lead to memory corruption due to use-after-free conditions during concurrent remote-forwarding operations in OpenSSH. This may cause crashes or potentially allow an attacker to execute arbitrary code or disrupt service. However, no known exploits in the wild are reported, and the severity is medium.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a patch is available, avoid concurrent remote-forwarding operations that could trigger the vulnerability if feasible.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-jwc3-6qvm-4r66
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-73282"]
- Database Specific Severity
- MODERATE
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6a7c9b6dbf8831d539cdffaf
Added to database: 08/12/2026, 16:12:29 UTC
Last enriched: 09/14/2026, 01:11:09 UTC
Last updated: 09/27/2026, 13:47:47 UTC
Views: 50
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