How severe is CVE-2018-13821?

CVE-2018-13821 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-2018-13821 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (84th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-13821?

CVE-2018-13821 primarily affects Ca Unified Infrastructure Management. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2018-13821?

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-2018-13821 published?

CVE-2018-13821 was published on 2018-08-30 and last updated on 2026-06-17.

CVE-2018-13821

CVE-2018-13821 is a critical-severity vulnerability in Ca Unified Infrastructure Management 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-287.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 3% (84th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-287
Affected product: Ca Unified Infrastructure Management
Published: 2018-08-30
Last modified: 2026-06-17

Description

A lack of authentication, in CA Unified Infrastructure Management 8.5.1, 8.5, and 8.4.7, allows remote attackers to conduct a variety of attacks, including file reading/writing.

Frequently asked questions

What is CVE-2018-13821?: A lack of authentication, in CA Unified Infrastructure Management 8.5.1, 8.5, and 8.4.7, allows remote attackers to conduct a variety of attacks, including file reading/writing.
How severe is CVE-2018-13821?: CVE-2018-13821 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-2018-13821 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (84th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-13821?: CVE-2018-13821 primarily affects Ca Unified Infrastructure Management. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2018-13821?: 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-2018-13821 published?: CVE-2018-13821 was published on 2018-08-30 and last updated on 2026-06-17.

References

Affected products (3)

cpe:2.3:a:ca:unified_infrastructure_management:8.4.7:*:*:*:*:*:*:*
cpe:2.3:a:ca:unified_infrastructure_management:8.5:*:*:*:*:*:*:*
cpe:2.3:a:ca:unified_infrastructure_management:8.5.1:*:*:*:*:*:*:*

More vulnerabilities in Ca Unified Infrastructure Management

CVE-2018-13820 — High (CVSS 7.5): A hardcoded passphrase, in CA Unified Infrastructure Management 8.5.1, 8.5, and 8.4.7, allows attackers to access…
CVE-2018-13819 — High (CVSS 7.5): A hardcoded secret key, in CA Unified Infrastructure Management 8.5.1, 8.5, and 8.4.7, allows attackers to access…
CVE-2016-9165 — High (CVSS 7.5): The get_sessions servlet in CA Unified Infrastructure Management (formerly CA Nimsoft Monitor) before 8.5 and CA…
CVE-2016-9164 — High (CVSS 7.5): Directory traversal vulnerability in diag.jsp file in CA Unified Infrastructure Management (formerly CA Nimsoft…

All CVEs affecting Ca Unified Infrastructure Management →

Other CWE-287 (Improper Authentication) vulnerabilities

CVE-2026-45480 — Critical (CVSS 10.0): Improper authentication in Azure Active Directory allows an unauthorized attacker to elevate privileges over a network.
CVE-2026-46389 — Critical (CVSS 10.0): UDS Identity Config builds the Keycloak configuration image (realm, plugins, theme, truststore, JARs) consumed by UDS…
CVE-2026-10611 — Critical (CVSS 10.0): An authentication bypass vulnerability exists in MISP when LDAP mixed authentication is enabled with OTP enforcement.…
CVE-2026-47280 — Critical (CVSS 10.0): Improper authentication in Azure Resource Manager (ARM) allows an unauthorized attacker to elevate privileges over a…
CVE-2026-42822 — Critical (CVSS 10.0): Improper authentication in Azure Local Disconnected Operations allows an unauthorized attacker to elevate privileges…
CVE-2026-20182 — Critical (CVSS 10.0): May 2026: This security advisory provides the details and fix information for a vulnerability that was discovered and…

Browse all CWE-287 (Improper Authentication) vulnerabilities →