Security readout for executives and security teams
Plain-English summary
This Cisco ASA issue can let a highly privileged authenticated user crash an affected firewall through the SCP feature. The business impact is availability: a crash may interrupt firewall services. The source bundle does not identify active exploitation or affected version ranges.
Executive priority
Treat as a moderate availability risk for internet-facing or broadly reachable management planes. Prioritize remediation where ASA devices protect critical connectivity or where privileged administrative access is widely held.
Technical view
CVE-2019-12693 is a Cisco ASA Software SCP denial-of-service flaw caused by an incorrect data type for a length variable. With valid privilege level 15 credentials, a remote attacker can trigger integer rollover during a large SCP file transfer, potentially crashing the device.
Likely exposure
Exposure is limited to Cisco ASA Software devices where SCP is reachable and an attacker can obtain or misuse privilege level 15 credentials. The bundle lists affected versions as unspecified, so asset-level validation against Cisco guidance is required.
Exploitation context
The CVE is not listed as KEV, and the provided sources do not claim active exploitation. Exploitation requires high privileges, but compromise or misuse of admin credentials could turn this into an outage risk.
Researcher notes
The public bundle supports DoS impact, remote authenticated attack vector, high privilege requirement, and crash outcome. It does not provide affected version ranges, patch identifiers, exploit maturity, or operational indicators beyond SCP-related crash behavior.
Mitigation direction
- Review the Cisco advisory for affected releases and fixed-release guidance.
- Upgrade affected Cisco ASA Software where Cisco provides a fixed release.
- Restrict SCP administrative access to trusted management networks.
- Review and limit privilege level 15 account access.
- Monitor ASA devices for unexpected crashes or reloads.
Validation and detection
- Inventory Cisco ASA Software versions in the environment.
- Confirm whether SCP is enabled or reachable on management interfaces.
- Identify accounts with privilege level 15 access.
- Review device logs for unexpected reloads near SCP activity.
- Compare deployed versions against Cisco advisory guidance.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
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Open ATT&CK lookupCVE-2019-12693 mapping review
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Open ATT&CK lookup- Severity
- Medium
- CVSS
- 6.8 (3.0)
- Known Exploited
- No
- Published
Vector: CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H
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.
CVSS vector scores
1 official scoreWe 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.
CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H2.34Primary CVE scoreVulnerability scoring details
Base CVSS 3.0 score
6.8MediumVector: CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H
Source materials
- CVE List V5 sourceCVE List V5
- 20191002 Cisco Adaptive Security Appliance Software Secure Copy Denial of Service VulnerabilityCVE reference · vendor-advisory, x_refsource_CISCO
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.