CVE-2026-3497
Vulnerability Scoring
Analysis In Progress
CVE-2026-3497 Vulnerability Analysis & Exploit Details
CVE-2026-3497
Attack Complexity Details
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Attack Complexity:
Attack Complexity Analysis In Progress
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Attack Vector:
Attack Vector Under Analysis
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Privileges Required:
None
No authentication is required for exploitation.
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Scope:
Impact is confined to the initially vulnerable component.
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User Interaction:
None
No user interaction is necessary for exploitation.
CVE-2026-3497 Details
Status: Awaiting Analysis
Last updated: 🕖 16 Apr 2026, 19:16 UTC
Originally published on: 🕖 12 Mar 2026, 19:16 UTC
Time between publication and last update: 35 days
CVSS Release:
CVE-2026-3497 Vulnerability Summary
CVE-2026-3497: Vulnerability in the OpenSSH GSSAPI delta included in various Linux distributions. This vulnerability affects the GSSAPI patches added by various Linux distributions and does not affect the OpenSSH upstream project itself. The usage of sshpkt_disconnect() on an error, which does not terminate the process, allows an attacker to send an unexpected GSSAPI message type during the GSSAPI key exchange to the server, which will call the underlying function and continue the execution of the program without setting the related connection variables. As the variables are not initialized to NULL the code later accesses those uninitialized variables, accessing random memory, which could lead to undefined behavior. The recommended workaround is to use ssh_packet_disconnect() instead, which does terminate the process. The impact of the vulnerability depends heavily on the compiler flag hardening configuration.
Assessing the Risk of CVE-2026-3497
Access Complexity Graph
The exploitability of CVE-2026-3497 depends on two key factors: attack complexity (the level of effort required to execute an exploit) and privileges required (the access level an attacker needs).
Exploitability Analysis for CVE-2026-3497
No exploitability data is available for CVE-2026-3497.
Understanding AC and PR
A lower complexity and fewer privilege requirements make exploitation easier. Security teams should evaluate these aspects to determine the urgency of mitigation strategies, such as patch management and access control policies.
Attack Complexity (AC) measures the difficulty in executing an exploit. A high AC means that specific conditions must be met, making an attack more challenging, while a low AC means the vulnerability can be exploited with minimal effort.
Privileges Required (PR) determine the level of system access necessary for an attack. Vulnerabilities requiring no privileges are more accessible to attackers, whereas high privilege requirements limit exploitation to authorized users with elevated access.
CVSS Score Breakdown Chart
Above is the CVSS Sub-score Breakdown for CVE-2026-3497, illustrating how Base, Impact, and Exploitability factors combine to form the overall severity rating. A higher sub-score typically indicates a more severe or easier-to-exploit vulnerability.
CIA Impact Analysis
Below is the Impact Analysis for CVE-2026-3497, showing how Confidentiality, Integrity, and Availability might be affected if the vulnerability is exploited. Higher values usually signal greater potential damage.
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Confidentiality:
None
CVE-2026-3497 does not compromise confidentiality.
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Integrity:
None
CVE-2026-3497 does not impact data integrity.
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Availability:
None
CVE-2026-3497 does not affect system availability.
CVE-2026-3497 References
External References
- https://ubuntu.com/security/CVE-2026-3497
- https://www.openwall.com/lists/oss-security/2026/03/12/3
- http://www.openwall.com/lists/oss-security/2026/03/12/3
- http://www.openwall.com/lists/oss-security/2026/03/14/3
- http://www.openwall.com/lists/oss-security/2026/03/14/4
- http://www.openwall.com/lists/oss-security/2026/03/18/2
- http://www.openwall.com/lists/oss-security/2026/03/18/4
- http://www.openwall.com/lists/oss-security/2026/03/18/5
- http://www.openwall.com/lists/oss-security/2026/03/18/7
- https://lists.debian.org/debian-lts-announce/2026/04/msg00014.html
CWE Common Weakness Enumeration
CWE-908Protect Your Infrastructure against CVE-2026-3497: Combat Critical CVE Threats
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