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CVE Record

CVE-2019-1945: Cisco Adaptive Security Appliance Smart Tunnel Vulnerabilities

Multiple vulnerabilities in the smart tunnel functionality of Cisco Adaptive Security Appliance (ASA) could allow an authenticated, local attacker to elevate privileges to the root user or load a malicious library file while the tunnel is being established. For more information about these vulnerabilities, see the Details section of this security advisory.

MediumCVSS 6.7Not KEV-listedUpdated
Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

This is a Cisco ASA Smart Tunnel issue where a logged-in local attacker could gain root-level privileges or load a malicious library while a tunnel is being established. Business urgency is moderate: impact is serious if reachable, but the source says exploitation needs local access, low privileges, high complexity, and user interaction.

Executive priority

Handle as a moderate-priority remediation item. It is not shown as actively exploited in the supplied sources, but successful exploitation could produce root-level compromise or malicious library loading in affected Smart Tunnel scenarios.

Technical view

CVE-2019-1945 covers multiple Smart Tunnel vulnerabilities in Cisco Adaptive Security Appliance Software. The CVSS 3.0 score is 6.7 with local attack vector, high complexity, low privileges required, user interaction required, unchanged scope, and high confidentiality, integrity, and availability impact. The listed weakness is CWE-20.

Likely exposure

Exposure is most likely where Cisco ASA Software uses Smart Tunnel functionality. The supplied bundle does not identify affected version ranges, CPEs, or configuration prerequisites, so teams should confirm product use and compare deployments against Cisco’s advisory.

Exploitation context

The bundle does not show CISA KEV listing or any cited evidence of active exploitation. The described attacker is authenticated and local, with exploitation requiring user interaction and high attack complexity. Do not treat this as remotely exploitable based on the supplied evidence.

Researcher notes

Key missing evidence includes affected version ranges, fixed releases, and detailed preconditions. The safest analysis boundary is Cisco ASA Smart Tunnel plus the CVSS vector supplied. Validate against the Cisco advisory before scoping or closing exposure.

Mitigation direction

  • Review Cisco’s advisory for affected releases and vendor-approved fixes.
  • Inventory Cisco ASA deployments and identify Smart Tunnel usage.
  • Prioritize remediation where Smart Tunnel supports sensitive remote access workflows.
  • Restrict local access and low-privileged accounts on systems using the tunnel.
  • Monitor Cisco guidance for version-specific upgrade or mitigation instructions.

Validation and detection

  • Confirm whether Cisco ASA Software is deployed in the environment.
  • Determine whether Smart Tunnel functionality is enabled or used.
  • Map installed ASA versions against Cisco advisory details.
  • Review access paths for authenticated local users using Smart Tunnel.
  • Check vulnerability management records for CVE-2019-1945 coverage.
Prepared
Confidence
medium
Sources
3

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

cwe · low confidence lookup

CWE-20: Exact CWE lookup

Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.

Open ATT&CK lookup
cve · low confidence lookup

CVE-2019-1945 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

Open ATT&CK lookup
Vulnerability profileCVE Program record
Severity
Medium
CVSS
6.7 (3.0)
Known Exploited
No
Published

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

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

1CVSS vectors
0Timeline events
0ADP providers
2Source links

CVSS vector scores

1 official score

We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.

ScoreVersionSeverityVectorExploitImpactSource
6.7CVSS 3.0MediumCVSS:3.0/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H0.85.9Primary CVE score

Vulnerability scoring details

Base CVSS 3.0 score

6.7Medium
CVSS 3.0 vector shape for CVE-2019-1945Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

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

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
CiscoCisco Adaptive Security Appliance (ASA) SoftwareunspecifiedListed
Weakness

CWE details

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.