VulnerabilityPublished 18 Dec 2025

CVE-2025-14848: Advantech WebAccess/SCADA · CWE-36

Affects Advantech WebAccess/SCADASource CVE Database V5

Not known to be exploited · CVSS 4.3 Medium.

Data as of 26 Oct 2026, 10:12 UTC

CVSS 3.1 base score

4.3Medium

How severe the flaw is on the 0–10 CVSS scale.

EPSS: 0.6% chance of exploitation in 30 days – higher than 51% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

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

Bold values are the worst case: easiest to exploit or largest impact.

Attack Vector: Network: The vulnerable component is bound to the network stack and the set of possible attackers extends beyond the other options listed, up to and including the entire Internet. Such a vulnerability is often termed 'remotely exploitable' and can be thought of as an attack being exploitable at the protocol level one or more network hops away (e.g., across one or more routers).
Attack Complexity: Low: Specialized access conditions or extenuating circumstances do not exist. An attacker can expect repeatable success against the vulnerable component.
Privileges Required: Low: The attacker is authorized with (i.e., requires) privileges that provide basic user capabilities that could normally affect only settings and files owned by a user. Alternatively, an attacker with Low privileges may have the ability to cause an impact only to non-sensitive resources.
User Interaction: None: The vulnerable system can be exploited without any interaction from any user.
Scope: Unchanged: An exploited vulnerability can only affect resources managed by the same security authority. In this case, the vulnerable component and the impacted component are either the same, or both are managed by the same security authority.
Confidentiality: Low: There is some loss of confidentiality. Access to some restricted information is obtained, but the attacker does not have control over what information is obtained, or the amount or kind of loss is limited. The information disclosure does not cause a direct, serious loss to the impacted component.
Integrity: None: There is no loss of integrity within the impacted component.
Availability: None: There is no impact to availability within the impacted component.

Definitions: FIRST CVSS v3.1 specification.

Exploitation evidence

Disclosed: evidence found.
CVE published 18 Dec 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponised: Public exploit code exists in Metasploit or Exploit-DB, or CISA SSVC or the CVSS exploit maturity reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

What to do

Affected software

Product	Affected	Fixed in
Advantech WebAccess/SCADA	Affected =9.2.1	Fixed in–

AI-suggested

Restrict network access to the Advantech WebAccess/SCADA interface using firewalls and network segmentation to limit exposure to trusted users only.
Implement strict authentication and authorization controls to ensure only legitimate users with necessary privileges can access the system.
Monitor logs and network traffic for unusual file access patterns or directory traversal attempts.
Apply any vendor-provided patches or updates as soon as they become available to remediate the vulnerability.
Employ web application firewalls (WAFs) with rules designed to detect and block directory traversal payloads.
Conduct regular security assessments and penetration tests focusing on SCADA systems to identify and remediate similar vulnerabilities proactively.
Educate operational technology (OT) security teams about this vulnerability and ensure incident response plans include scenarios involving information disclosure in SCADA environments.

Description

CVE-2025-14848 is an absolute directory traversal vulnerability in Advantech WebAccess/SCADA version 9.2.1. This flaw allows an attacker with low privileges to determine the existence of arbitrary files on the system without requiring user interaction. The vulnerability impacts confidentiality but does not affect integrity or availability. Exploitation is possible remotely over the network with low attack complexity. No known exploits are currently reported in the wild. The vulnerability is rated medium severity with a CVSS score of 4.3. European organizations using this SCADA platform should prioritize patching or mitigating this issue to prevent potential reconnaissance by attackers.

Impact

For European organizations, especially those operating critical infrastructure such as energy, manufacturing, and utilities, this vulnerability could allow attackers to gather sensitive information about system files and configurations. This reconnaissance capability can be leveraged to plan more targeted attacks, including ransomware or sabotage. Although the vulnerability does not directly compromise system integrity or availability, the exposure of file existence information undermines confidentiality and could lead to further exploitation. Organizations relying on Advantech WebAccess/SCADA version 9.2.1 are at risk, particularly in sectors where industrial automation is prevalent. The impact is heightened in environments where network segmentation or access controls are weak, allowing easier exploitation by internal or external threat actors.

CWE-36Absolute Path Traversal (opens in a new tab)
Base weaknessOWASP Top 10 A01:2025: Broken Access Control (opens in a new tab)
The product uses external input to construct a pathname that should be within a restricted directory, but it does not properly neutralize absolute path sequences such as "/abs/path" that can resolve to a location that is outside of that directory.
Implementation · Input Validation
Assume all input is malicious. Use an "accept known good" input validation strategy, i.e., use a list of acceptable inputs that strictly conform to specifications. Reject any input that does not strictly conform to specifications, or transform it into something that does.
Implementation · Input Validation
Inputs should be decoded and canonicalized to the application's current internal representation before being validated (CWE-180). Make sure that the application does not decode the same input twice (CWE-174).
Operation · Firewall
Use an application firewall that can detect attacks against this weakness. It can be beneficial in cases in which the code cannot be fixed (because it is controlled by a third party), as an emergency prevention measure while more comprehensive software assurance measures are applied, or to provide defense in depth.
OWASP Cheat Sheets
Authorization (opens in a new tab)
OWASP ASVS 4.0.3
V12.3.1 (opens in a new tab)
Attack patterns
Absolute Path Traversal (opens in a new tab)
From MITRE CWE, MITRE CAPEC and OWASP (Top 10, OpenCRE).

References

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Exploitation evidence

What to do

Affected software

Description

AI analysisMachine-generated, updated 25 Dec 2025, 21:12 UTC

WeaknessesCWE-36

Technical details

References

Community reviews

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