VulnerabilityPublished 5 Nov 2025

CVE-2025-20374: Cisco Unified Contact Center Express · Path Traversal

Affects Cisco Unified Contact Center ExpressSource CVE Database V5

Not known to be exploited · CVSS 4.9 Medium.

Data as of 26 Oct 2026, 17:16 UTC

CVSS 3.1 base score

4.9Medium

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

EPSS: 1.1% chance of exploitation in 30 days – higher than 66% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.

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

Attack Vector: Network
Attack Complexity: Low
Privileges Required: High
User Interaction: None
Scope: Unchanged
Confidentiality: High
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: High: The attacker is authorized with (i.e., requires) privileges that provide significant (e.g., administrative) control over the vulnerable component that could affect component-wide settings and files.
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: 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 5 Nov 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
Cisco Cisco Unified Contact Center Express	Affected 10.5 – 12.5 5 affected builds	Fixed in–

AI-suggested

Immediately review and restrict administrative access to the Cisco UCCX web UI, ensuring only trusted personnel have credentials.
Enforce strong authentication mechanisms, including multi-factor authentication (MFA), to reduce the risk of credential compromise.
Monitor access logs for unusual or unauthorized administrative activity that could indicate exploitation attempts.
Apply Cisco security advisories and patches promptly once available; maintain an active subscription to Cisco security notifications.
Implement network segmentation to isolate UCCX servers from general user networks and limit exposure to only necessary management hosts.
Conduct regular audits of file permissions and configurations on UCCX servers to detect unauthorized changes or access.
Use web application firewalls (WAFs) or intrusion detection/prevention systems (IDS/IPS) to detect and block suspicious path traversal attempts.
Educate administrators on the risks of credential sharing and enforce policies to minimize insider threats.
Prepare incident response plans specifically addressing potential data exposure from contact center systems.
Consider deploying endpoint detection and response (EDR) solutions on UCCX servers to identify anomalous file access patterns.

Description

A vulnerability in the web UI of Cisco Unified CCX could allow an authenticated, remote attacker to perform a directory traversal and access arbitrary resources. This vulnerability is due to an insufficient input validation associated to specific UI features. An attacker could exploit this vulnerability by sending a crafted request to the web UI. A successful exploit could allow the attacker to gain read access to arbitrary files on the underlying operating system. To exploit this vulnerability, the attacker must have valid administrative credentials.

Impact

For European organizations, the primary impact is the potential exposure of sensitive files on Cisco UCCX servers, which often contain customer data, call recordings, configuration files, and authentication credentials. This confidentiality breach could lead to data privacy violations under GDPR, resulting in regulatory penalties and reputational damage. Since the vulnerability requires administrative credentials, the risk is heightened if credential management is weak or if insider threats exist. The inability to modify or disrupt services limits the impact on availability and integrity, but the exposure of sensitive information could facilitate subsequent attacks such as lateral movement or privilege escalation. Contact centers are critical infrastructure for many sectors including finance, healthcare, and government services in Europe, so exploitation could indirectly affect service continuity and customer trust. The broad range of affected versions means many organizations may be vulnerable if they have not applied recent updates or do not have strict access controls. The lack of known exploits reduces immediate risk but does not eliminate the threat, especially as attackers often develop exploits after public disclosure.

References

sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-cc-mult-vuln-gK4TFXSn (opens in a new tab)

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Exploitation evidence

What to do

Affected software

Description

AI analysisMachine-generated, updated 12 Nov 2025, 17:14 UTC

Technical details

References

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