CVE-2025-53120VulnerabilityPublished 25 Aug 2025

CVE-2025-53120: Securden Unified PAM · Path Traversal

Affects Securden Unified PAMSource CVE Database V5

Not known to be exploited · 11% EPSS · CVSS 9.4 Critical : upgrade to 9.1.0 as a priority.

Data as of 25 Oct 2026, 19:02 UTC

CVSS 3.1 base score

9.4Critical

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

EPSS: 11.6% chance of exploitation in 30 days – higher than 96% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch: Available – fixed in 9.1.0

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

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

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: None: The attacker is unauthorized prior to attack, and therefore does not require any access to settings or files to carry out an attack.
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: High: There is total loss of confidentiality, resulting in all resources within the impacted component being divulged to the attacker. Alternatively, access to only some restricted information is obtained, but the disclosed information presents a direct, serious impact.
Integrity: High: There is a total loss of integrity, or a complete loss of protection. For example, the attacker is able to modify any/all files protected by the impacted component. Alternatively, only some files can be modified, but malicious modification would present a direct, serious consequence to the impacted component.
Availability: Low: Performance is reduced or there are interruptions in resource availability. Even if repeated exploitation of the vulnerability is possible, the attacker does not have the ability to completely deny service to legitimate users. The resources in the impacted component are either partially available all of the time, or fully available only some of the time, but overall there is no direct, serious consequence to the impacted component.

Definitions: FIRST CVSS v3.1 specification.

Exploitation evidence

Disclosed: evidence found.
CVE published 25 Aug 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 2026-10-25.

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 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

Upgrade Securden Unified PAM to 9.1.0.

Affected software

Product	Affected	Fixed in
Securden Unified PAM	Affected >=9.0.0 <9.1.0	Fixed in 9.1.0

AI-suggested

Immediate mitigation steps include restricting network exposure of the Unified PAM server to trusted internal networks and implementing strict firewall rules to limit access to the upload functionality. Organizations should conduct thorough monitoring of server logs for unusual upload activity or unauthorized file changes in configuration and web root directories. Employing application-layer filtering or web application firewalls (WAFs) to detect and block path traversal attempts can provide an additional protective layer. Until an official patch is released by Securden, consider disabling or restricting the vulnerable upload functionality if feasible. Regularly update and audit PAM configurations and credentials to detect any unauthorized changes. Implement network segmentation to isolate the PAM server from less trusted network zones. Finally, maintain a robust incident response plan to quickly address any signs of compromise related to this vulnerability.

Description

A path traversal vulnerability in unauthenticated upload functionality allows a malicious actor to upload binaries and scripts to the server’s configuration and web root directories, achieving remote code execution on the Unified PAM server.

Impact

For European organizations, the impact of this vulnerability is substantial due to the critical role of PAM solutions in managing privileged access and securing sensitive credentials. Successful exploitation could lead to full compromise of the Unified PAM server, enabling attackers to manipulate access controls, escalate privileges, and move laterally within enterprise networks. This could result in data breaches, disruption of business operations, and exposure of sensitive information protected by PAM policies. Given the unauthenticated nature of the exploit and the ability to achieve remote code execution, attackers could deploy malware, ransomware, or persistent backdoors, severely impacting confidentiality, integrity, and availability. Organizations in sectors with stringent regulatory requirements such as finance, healthcare, and government are particularly at risk of compliance violations and reputational damage. The vulnerability’s presence in a widely used PAM product increases the attack surface across European enterprises that rely on Securden Unified PAM for privileged access management.

CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') (opens in a new tab)
Base weaknessLikelihood of exploit: HighCWE Top 25 (2025): #6OWASP Top 10 A01:2025: Broken Access Control (opens in a new tab)
The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted 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.
Architecture and Design
For any security checks that are performed on the client side, ensure that these checks are duplicated on the server side, in order to avoid CWE-602. Attackers can bypass the client-side checks by modifying values after the checks have been performed, or by changing the client to remove the client-side checks…
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).
OWASP Cheat Sheets
Authorization (opens in a new tab)
OWASP ASVS 4.0.3
V12.3.1 (opens in a new tab)
Attack patterns
Path Traversal (opens in a new tab)
Using Slashes and URL Encoding Combined to Bypass Validation Logic (opens in a new tab)
Manipulating Web Input to File System Calls (opens in a new tab)
Using Escaped Slashes in Alternate Encoding (opens in a new tab)
Using Slashes in Alternate Encoding (opens in a new tab)
From MITRE CWE, MITRE CAPEC and OWASP (Top 10, OpenCRE).

References

rapid7.com/blog/post/securden-unified-pam-multiple-critical-vulnerabilities-fixed/ (opens in a new tab)

Community reviews

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Exploitation evidence

What to do

Affected software

Description

AI analysisMachine-generated, updated 25 Aug 2025, 16:48 UTC

WeaknessesCWE-22

Technical details

References

Community reviews

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