How severe is CVE-2018-0403?

CVE-2018-0403 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2018-0403 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (85th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-0403?

CVE-2018-0403 primarily affects Cisco Unified Contact Center Express. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2018-0403?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2018-0403 published?

CVE-2018-0403 was published on 2018-07-18 and last updated on 2026-06-17.

CVE-2018-0403

CVE-2018-0403 is a critical-severity vulnerability in Cisco Unified Contact Center Express with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-918.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 5.0
EPSS exploit prediction: 3% (85th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-918
Affected product: Cisco Unified Contact Center Express
Published: 2018-07-18
Last modified: 2026-06-17

Description

Multiple vulnerabilities in the web-based management interface of Cisco Unified Contact Center Express (Unified CCX) could allow an unauthenticated, remote attacker to retrieve a cleartext password. Cisco Bug IDs: CSCvg71040.

Frequently asked questions

What is CVE-2018-0403?: Multiple vulnerabilities in the web-based management interface of Cisco Unified Contact Center Express (Unified CCX) could allow an unauthenticated, remote attacker to retrieve a cleartext password. Cisco Bug IDs: CSCvg71040.
How severe is CVE-2018-0403?: CVE-2018-0403 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2018-0403 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (85th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-0403?: CVE-2018-0403 primarily affects Cisco Unified Contact Center Express. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2018-0403?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2018-0403 published?: CVE-2018-0403 was published on 2018-07-18 and last updated on 2026-06-17.

References

Affected products (2)

cpe:2.3:a:cisco:unified_contact_center_express:11.5\(1\):*:*:*:*:*:*:*
cpe:2.3:a:cisco:unified_ip_interactive_voice_response:11.5\(1\):*:*:*:*:*:*:*

More vulnerabilities in Cisco Unified Contact Center Express

CVE-2021-44228 — Critical (CVSS 10.0): Apache Log4j2 2.0-beta9 through 2.15.0 (excluding security releases 2.12.2, 2.12.3, and 2.3.1) JNDI features used in…
CVE-2024-20253 — Critical (CVSS 9.9): A vulnerability in multiple Cisco Unified Communications and Contact Center Solutions products could allow an…
CVE-2025-20354 — Critical (CVSS 9.8): A vulnerability in the Java Remote Method Invocation (RMI) process of Cisco Unified CCX could allow an unauthenticated,…
CVE-2020-3280 — Critical (CVSS 9.8): A vulnerability in the Java Remote Management Interface of Cisco Unified Contact Center Express (Unified CCX) could…
CVE-2017-12337 — Critical (CVSS 9.8): A vulnerability in the upgrade mechanism of Cisco collaboration products based on the Cisco Voice Operating System…
CVE-2022-20658 — Critical (CVSS 9.6): A vulnerability in the web-based management interface of Cisco Unified Contact Center Management Portal (Unified CCMP)…

All CVEs affecting Cisco Unified Contact Center Express →

Other CWE-918 (Server-Side Request Forgery (SSRF)) vulnerabilities

CVE-2026-69502 — Critical (CVSS 10.0): Server-side request forgery (ssrf) in Azure SQL Database allows an unauthorized attacker to elevate privileges over a…
CVE-2026-65801 — Critical (CVSS 10.0): Server-side request forgery (ssrf) in Microsoft Exchange Online allows an unauthorized attacker to elevate privileges…
CVE-2026-48331 — Critical (CVSS 10.0): Adobe Campaign Classic (ACC) is affected by a Server-Side Request Forgery (SSRF) vulnerability that could result in…
CVE-2026-54735 — Critical (CVSS 10.0): Prebid Server is an open-source solution for running real-time advertising auctions in the cloud. Prior to version…
CVE-2026-57106 — Critical (CVSS 10.0): Server-side request forgery (ssrf) in Data Quality allows an unauthorized attacker to elevate privileges over a network.
CVE-2026-15409 — Critical (CVSS 10.0): A Server-side request forgery (SSRF) vulnerability has been identified in the SMA1000 Appliance Work Place interface. A…

Browse all CWE-918 (Server-Side Request Forgery (SSRF)) vulnerabilities →