CVE-2019-1888· NVD / CVE Program· CNA cisco

Cisco Unified Contact Center Express Privilege Escalation Vulnerability

Noroxi assessment

Priority: Monitor (action score 29/100)

The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
Probability of exploitation in the next 30 days: 3.4% (FIRST EPSS); higher than 88.8% of all records.
Anyone who can reach it over the internet can trigger it. Administrator privileges are required. No user action is required. No special conditions are required; it is repeatable.
According to the record, no fixed version is available yet.

Low priority for now. Update when a fix is released; follow the vendor's advisory.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

A vulnerability in the Administration Web Interface of Cisco Unified Contact Center Express (Unified CCX) could allow an authenticated, remote attacker to upload arbitrary files and execute commands on the underlying operating system. To exploit this vulnerability, an attacker needs valid Administrator credentials. The vulnerability is due to insufficient restrictions for the content uploaded to an affected system. An attacker could exploit this vulnerability by uploading arbitrary files containing operating system commands that will be executed by an affected system. A successful exploit could allow the attacker to execute arbitrary commands with the privileges of the web interface and then elevate their privileges to root.

HighCVSS 7.2 · v3.1—No exploit No fix recorded

BDU:2020-00985

Published: Sep 22, 2020
Updated: Jun 16, 2026
EPSS: 3.4% · 88th percentile
CWE: CWE-434

Report tools

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Action score

Monitor

Low priority for now.

CVSS: 28 / 40 · 7.2 / 10
CISA KEV: 0 / 30 · Not listed
EPSS: 1 / 30 · 3.4%

CISA SSVC decision

Exploitation: none
Automatable: no
Technical impact: total

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD: 7.2
CNA · cisco: 7.2; agree

CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Get told when this record changes

Not in KEV: no record of exploitation in the wild
No public exploit code on record
No fixed version yet

If any of these changes, we'll tell you in the daily email digest.

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

Vendor	Product	CPE
cisco	unified contact center express	cpe:2.3:a:cisco:unified_contact_center_express
cisco	unified ip interactive voice response	cpe:2.3:a:cisco:unified_ip_interactive_voice_response

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

cisco unified contact center express11.6(1)
cisco unified contact center express11.6(2)
cisco unified contact center express12.0(1)
cisco unified ip interactive voice response11.6(1)
cisco unified ip interactive voice response11.6(2)

Versions reported by the vendor

Affected version ranges reported by the assigning authority (cisco). Independent of NVD's CPE analysis and usually ahead of it.

Cisco Cisco Unified Contact Center Express
- n/aaffected

Same product

cisco: all records

Other highest-scoring records for the same primary product.

CVE-2020-3280Cisco Unified Contact Center Express Remote Code Execution Vulnerability
41Plan
CVE-2018-0403Multiple vulnerabilities in the web-based management interface of Cisco Unified Contact Center Express (Unified CCX) could allow an unauthen
40Plan
CVE-2025-20358Cisco Unified Contact Center Express Editor Authentication Bypass Vulnerability
39Monitor

Published before and after this one in the same product

← EarlierCVE-2019-15259Oct 2, 2019 · Cisco Unified Contact Center Express HTTP Response Splitting Vulnerability
24Monitor
← EarlierCVE-2020-3267Jun 3, 2020 · Cisco Unified Contact Center Express Improper API Authorization Vulnerability
28Monitor
Later →CVE-2021-1463Apr 8, 2021 · Cisco Unified Intelligence Center Reflected Cross-Site Scripting Vulnerability
24Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

No fix version is recorded for this entry. Check the references for vendor advisories.

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).