How severe is CVE-2011-2054?

CVE-2011-2054 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2011-2054 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (54th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2011-2054?

CVE-2011-2054 primarily affects Cisco Asa 5500 Firmware. In total, 12 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2011-2054?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2011-2054 published?

CVE-2011-2054 was published on 2020-02-19 and last updated on 2026-06-16.

CVE-2011-2054

CVE-2011-2054 is a medium-severity vulnerability in Cisco Asa 5500 Firmware with a CVSS 3.x base score of 4.3. 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: Medium (CVSS 3.x base score 4.3)
CVSS v2: 6.0
EPSS exploit prediction: 1% (54th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-287
Affected product: Cisco Asa 5500 Firmware
Published: 2020-02-19
Last modified: 2026-06-16

Description

A vulnerability in the Cisco ASA that could allow a remote attacker to successfully authenticate using the Cisco AnyConnect VPN client if the Secondary Authentication type is LDAP and the password is left blank, providing the primary credentials are correct. The vulnerabilities is due to improper input validation of certain parameters passed to the affected software. An attacker must have the correct primary credentials in order to successfully exploit this vulnerability.

Frequently asked questions

What is CVE-2011-2054?: A vulnerability in the Cisco ASA that could allow a remote attacker to successfully authenticate using the Cisco AnyConnect VPN client if the Secondary Authentication type is LDAP and the password is left blank, providing the primary credentials are correct. The vulnerabilities is due to improper input validation of certain parameters passed to the affected software. An attacker must have the correct primary credentials in order to successfully exploit this vulnerability.
How severe is CVE-2011-2054?: CVE-2011-2054 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2011-2054 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (54th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2011-2054?: CVE-2011-2054 primarily affects Cisco Asa 5500 Firmware. In total, 12 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2011-2054?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2011-2054 published?: CVE-2011-2054 was published on 2020-02-19 and last updated on 2026-06-16.

References

https://quickview.cloudapps.cisco.com/quickview/bug/CSCtq58884

Affected products (12)

cpe:2.3:o:cisco:asa_5500_firmware:8.4\(1\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:asa_5510_firmware:8.4\(1\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:asa_5512-x_firmware:8.4\(1\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:asa_5515-x_firmware:8.4\(1\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:asa_5520_firmware:8.4\(1\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:asa_5525-x_firmware:8.4\(1\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:asa_5540_firmware:8.4\(1\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:asa_5545-x_firmware:8.4\(1\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:asa_5550_firmware:8.4\(1\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:asa_5555-x_firmware:8.4\(1\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:asa_5580_firmware:8.4\(1\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:asa_5585-x_firmware:8.4\(1\):*:*:*:*:*:*:*

More vulnerabilities in Cisco Asa 5500 Firmware

CVE-2019-1649 — Medium (CVSS 6.7): A vulnerability in the logic that handles access control to one of the hardware components in Cisco's proprietary…

All CVEs affecting Cisco Asa 5500 Firmware →

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 →