CVE-2025-20274VulnerabilityPublished 16 Jul 2025Updated 26 Feb 2026

CVE-2025-20274: Cisco Unified Contact Center Express · Unrestricted File Upload

Affects Cisco Unified Contact Center ExpressSource CVE Database V5

Not known to be exploited · CVSS 6.3 Medium.

Data as of 25 Oct 2026, 19:02 UTC

CVSS 3.1 base score

6.3Medium

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

EPSS: 0.4% chance of exploitation in 30 days – higher than 40% 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:L/A:L

Attack Vector: Network
Attack Complexity: Low
Privileges Required: Low
User Interaction: None
Scope: Unchanged
Confidentiality: Low
Integrity: Low
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: 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: Low: Modification of data is possible, but the attacker does not have control over the consequence of a modification, or the amount of modification is limited. The data modification does not have a direct, serious impact on 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 16 Jul 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

Affected software

Product	Affected	Fixed in
Cisco Cisco Unified Contact Center Express	Affected =10.6 =12.0 =10.5 =11.6 =12.5	Fixed in–

AI-suggested

To mitigate CVE-2025-20274, organizations should immediately identify and inventory all Cisco Unified Contact Center Express deployments and verify their software versions against the affected list. Cisco is expected to release patches or updates addressing this vulnerability; applying these updates promptly is critical. Until patches are available, restrict access to the web-based management interface to trusted administrators only, ideally through network segmentation, VPNs, or IP whitelisting. Implement strong authentication controls, including multi-factor authentication, to reduce the risk of credential compromise. Regularly audit user accounts and roles to ensure only necessary privileges are assigned, minimizing the number of users with Report Designer or higher roles. Monitor logs for unusual file upload activity or command execution attempts. Employ intrusion detection and prevention systems to detect anomalous behavior related to file uploads or privilege escalation. Finally, conduct security awareness training to reduce the risk of credential theft and insider threats.

Description

A vulnerability in the web-based management interface of Cisco Unified Intelligence Center could allow an authenticated, remote attacker to upload arbitrary files to an affected device. This vulnerability is due to improper validation of files that are uploaded to the web-based management interface. An attacker could exploit this vulnerability by uploading arbitrary files to an affected device. A successful exploit could allow the attacker to store malicious files on the system and execute arbitrary commands on the operating system. The Security Impact Rating (SIR) of this advisory has been raised to High because an attacker could elevate privileges to root. To exploit this vulnerability, the attacker must have valid credentials for a user account with at least the role of Report Designer.

Impact

The impact of CVE-2025-20274 is significant for organizations relying on Cisco Unified Contact Center Express for their contact center operations. Successful exploitation could allow attackers to upload and execute malicious files, leading to unauthorized command execution and potential full system compromise through privilege escalation to root. This threatens the confidentiality, integrity, and availability of the affected systems. Attackers could manipulate call center data, disrupt customer service operations, or use the compromised system as a foothold for lateral movement within the corporate network. Given the critical role of contact center infrastructure in customer engagement and business continuity, exploitation could result in operational downtime, data breaches involving sensitive customer information, and reputational damage. The requirement for valid credentials limits the attack vector to insiders or attackers who have compromised legitimate accounts, but the broad range of affected versions means many organizations remain vulnerable if patches are not applied promptly.

References

sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-cuis-file-upload-UhNEtStm (opens in a new tab)

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Exploitation evidence

What to do

Affected software

Description

AI analysisMachine-generated, updated 26 Feb 2026, 22:22 UTC

Technical details

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