Cyber Resilience

CVE-2026-33447

Low

Published: 30 April 2026

Published
30 April 2026
Modified
05 May 2026
KEV Added
—
Patch
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CVSS Score v4 2.3 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
EPSS Score 0.0025 16.5th percentile
Risk Priority 15 floored blend · peak EPSS

Summary

CVE-2026-33447 is a low-severity Stack-based Buffer Overflow (CWE-121) vulnerability in Absolute Secure Access. Its CVSS base score is 2.3 (Low).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploitation for Client Execution (T1203); ranked at the 16.5th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

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…

more

to memory corruption or denial of service.

CWE(s)
CWE-121

Related Threats

MITRE ATT&CK Enterprise TechniquesAI

T1203 Exploitation for Client Execution Execution
Adversaries may exploit software vulnerabilities in client applications to execute code.
attack.mitre.org →
T1499.004 Application or System Exploitation Impact
Adversaries may exploit software vulnerabilities that can cause an application or system to crash and deny availability to users.
attack.mitre.org →
Why these techniques?

Buffer overflow in client message parsing enables server-controlled exploitation for client execution (T1203) or endpoint DoS via application exploitation (T1499.004).

Confidence: MEDIUM · MITRE ATT&CK Enterprise v19.0

Affected Assets

absolute
secure access
≤ 14.50

Mitigating Controls

No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.

References