Client crash via authentication packet buffer overflow
Published Apr 30, 2026 · Updated Apr 30, 2026
Buffer overflow in the authentication subsystem of Absolute Secure Access before 14.50 allows attackers controlling a modified server to crash the client. The subsystem processes a specially formed server packet without enforcing the destination buffer bounds, overwriting a small memory region. Exploitation requires control of the server contacted by the client; the disclosed consequence is memory corruption or a client crash, not data access.
Summary
What happened
Buffer overflow in the authentication subsystem of Absolute Secure Access before 14.50 allows attackers controlling a modified server to crash the client. The subsystem processes a specially formed server packet without enforcing the destination buffer bounds, overwriting a small memory region. Exploitation requires control of the server contacted by the client; the disclosed consequence is memory corruption or a client crash, not data access.
The record
- CVE
- CVE-2026-33446
- Published
- Apr 30, 2026
- Updated
- Apr 30, 2026
- Vendor
- Absolute Security
- Product
- Absolute Secure Access
- Classifications
- CWE-120, T1499.004
- Attack vector
- adjacent
- Privileges
- unauthenticated
Timeline
How it unfolded
- Apr 30, 2026CVE publishedPublication date reported by the CVE source.
- Apr 30, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
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- Affected versionversion=0 <14.50
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
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Weakness, pattern, technique
Public exploit references
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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