EUVD-2026-26415Severity by source
CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:P/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:P/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Lifecycle Timeline
7DescriptionCVE.org
CVE-2026-33447 is a buffer overflow in a message parsing function of the Secure Access client prior to 14.50. Attackers with control of a modified server can send a special packet that can overwrite a small portion of memory conceivably leading to memory corruption or denial of service.
AnalysisAI
Buffer overflow in Secure Access message parsing prior to version 14.50 allows remote attackers with control of a modified server to send specially crafted packets that corrupt memory, potentially causing denial of service or limited information disclosure. Attack requires network access, high complexity, and user interaction; CVSS 2.3 reflects limited real-world impact despite the vulnerability class.
Technical ContextAI
The vulnerability resides in a message parsing function within the Secure Access client application, a privilege management and secure access solution by Absolute Software. The buffer overflow occurs during packet processing when the client communicates with a server. The condition involves a bounded but insufficient buffer allocation, allowing a remote entity controlling or impersonating a server to craft packets exceeding expected bounds. The overflow is classified as a buffer overflow (CWE category implied by description), which typically results from improper bounds checking in C/C++ parsing routines. The impact is constrained to integrity and availability-not confidentiality-suggesting the overflow affects internal state or stack canaries rather than sensitive data exposure.
RemediationAI
Upgrade Absolute Secure Access to version 14.50 or later, which is available from the vendor. Organizations should deploy this patch immediately across all client instances communicating with Secure Access servers. If immediate patching is not feasible, implement network-level controls to restrict client-server communications to trusted, verified endpoints and monitor for unexpected server certificate changes or unusual packet patterns. Monitor server infrastructure for compromise indicators, as the attack surface is limited to scenarios where an attacker controls or intercepts the server-client channel. Patch deployment has no documented negative side effects given the security focus of the fix.
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View allSame technique Buffer Overflow
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External POC / Exploit Code
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