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Secure Access CVE-2025-49080

| EUVDEUVD-2025-18200 HIGH
Mismatched Memory Management Routines (CWE-762)
2025-06-12 SecurityResponse@netmotionsoftware.com
7.5
CVSS 3.1 · NVD
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Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A06:2021 - Vulnerable and Outdated Components
ASVS 5.0
V15 - Secure Coding and Architecture Memory management consistency
Impact

This vulnerability presents HIGH real-world risk despite a moderate CVSS v3.1 base score of 7.5. Risk signal analysis: (1) Attack Vector (AV:N) + Attack Complexity (AC:L) + No Privileges (PR:N) + No User Interaction (UI:N) = trivially exploitable from the network with no prerequisites; (2) Availability impact (A:H) means complete service outage is achievable; (3) CVSS Scope (S:U) indicates impact is limited to the vulnerable component itself, not system-wide; (4) Wide version range affected (9.0-13.54) suggests large installed base at risk; (5) Likely active exploitation or imminent POC development given the straightforward packet-based attack vector and low complexity. The absence of confidentiality and integrity impact (C:N/I:N) prevents this from reaching critical severity, but for organizations relying on Absolute Secure Access for business continuity, a DoS vulnerability is operationally critical. EPSS score would likely be elevated (>0.80) due to low attack complexity and network accessibility, making this a priority for rapid patching.

Exploit ScenarioDerived

An attacker with network access to the Absolute Secure Access server (e.g., on the same network segment or via the internet if the server is internet-facing) crafts a series of malformed or oversized packets designed to trigger the memory management flaw in the packet parsing code. The attacker sends these packets to the server's listening port without authentication. The flawed loop condition validation allows the packet handler to allocate excessive memory, fail to deallocate memory properly, or write beyond buffer boundaries. After sending a small number of specially crafted packets (seconds to minutes), the server process exhausts available memory or encounters a fatal memory access violation, crashing and becoming unavailable. The attacker can repeat this attack to maintain the denial of service. No proof-of-concept code is required—the low complexity attack surface means exploitation is straightforward reverse-engineering from the vulnerable code path, and POC tools will likely circulate within 48–72 hours of public disclosure if not already being leveraged in targeted campaigns.

This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).
Patch available 0.1% exploitation probability (EPSS)

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AnalysisAIv1 – Mar 14, 2026

Memory management vulnerability in Absolute Secure Access server versions 9.0 through 13.54 that allows unauthenticated, network-based attackers to trigger a Denial of Service condition by sending specially crafted packet sequences. The vulnerability requires no privileges or user interaction and has high availability impact (complete service disruption), though no data confidentiality or integrity risk. This is a critical operational risk for organizations dependent on Absolute Secure Access for remote connectivity.

Affected VersionsENISA

Secure Access 9.0 <13.54

Affected Packages

euvd secure_access fix: 13.54

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 1 package in euvd

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

The vulnerability stems from CWE-762 (Mismatched Validation of Loop Condition), a memory management flaw in the Absolute Secure Access server's packet handling logic. The affected technology is Absolute Secure Access (CPE: cpe:2.3:a:absolute:secure_access:*:*:*:*:*:*:*:*), a remote connectivity and access control solution. The memory management defect exists in versions 9.0 through 13.54, suggesting the flaw was introduced or remained unpatched across multiple major release cycles. The root cause involves improper validation of loop conditions during packet processing, likely resulting in unbounded memory consumption, buffer exhaustion, or unsafe memory access that crashes the service. The network-accessible attack surface (AV:N) indicates the vulnerable code path is directly reachable from unauthenticated network connections, typical of server socket handlers or protocol parsers.

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Severity by source

NVD PRIMARY 7.5 HIGH
AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

Lifecycle Timeline

3
Analysis Updated
Apr 16, 2026 - 06:39 EUVD-patch-fix
executive summary
Patch available
Apr 16, 2026 - 05:29 EUVD
13.54
CVE Published
Jun 12, 2025 - 17:15 nvd
HIGH 7.5

DescriptionCVE.org

There is a memory management vulnerability in Absolute Secure Access server versions 9.0 to 13.54. Attackers with network access to the server can cause a Denial of Service by sending a specially crafted sequence of packets to the server. The attack complexity is low, there are no attack requirements, privileges, or user interaction required. Loss of availability is high; there is no impact on confidentiality or integrity.

Executive ViewAI

Why It Matters

Absolute Secure Access versions 9.0-13.54 contain a memory management vulnerability (CVE-2025-49080) that allows unauthenticated attackers to remotely disable the service entirely via specially crafted packets, disrupting remote access capabilities for dependent organizations. With a CVSS score of 7.5 and no authentication required, this poses an immediate operational continuity risk to any organization relying on this product for secure remote connectivity.

Recommended Action

Within 24 hours: Identify all Absolute Secure Access deployments and document current versions. Within 7 days: Apply vendor-released patch to all affected instances (versions 9.0-13.54); verify patch deployment in staging environment first. Within 30 days: Conduct full inventory validation and implement network segmentation to restrict unauthenticated access to Absolute Secure Access servers.

Business Impact: High
Compensating Controls

Apply vendor patch. If immediate patching is not feasible, implement network-level controls: restrict inbound network access to Absolute Secure Access servers to trusted IP ranges only, deploy rate limiting on the service port to mitigate packet-sequence-based DoS attempts, and establish continuous service monitoring with automated alerting for availability anomalies.

Threat Intelligence Overview

EPSS Score
0.1%
Top 71% exploitable
Data Quality
4 sources
Confidence: Medium

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity HIGH
CISA KEV No
Public POC No
EPSS 0.1%
Patch available Yes
Active threat No
Deciding rule
HIGH severity (CVSS 7.0-8.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Scheduled
Exploitation· derived
None
System Exposure· derived
Open
Automatable· derived
Yes
Human Impact
High

Priority Score

38
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +38
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

A buffer overflow occurs when a program writes more data to a memory buffer than it was allocated to hold, causing the excess data to spill into adjacent memory regions.

Memory corruption occurs when a program writes data beyond the boundaries of allocated memory regions or accesses memory in unintended ways, violating the integrity of the process's address space.

Denial of Service attacks render applications or systems unavailable by overwhelming resources or triggering failure conditions.

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