Security readout for executives and security teams
Plain-English summary
This Cisco Jabber for Mac issue lets a logged-in local user potentially run code or alter configuration files with the privileges of Cisco Jabber Client Framework. It is not described as remotely exploitable, but it matters on shared, compromised, or poorly controlled Mac endpoints.
Executive priority
Treat as a targeted endpoint hardening issue, not an internet-wide emergency. Prioritize organizations with Cisco Jabber on shared Macs, privileged user workstations, or weak local account controls.
Technical view
CVE-2019-12645 affects Cisco Jabber Client Framework for Mac, installed with Cisco Jabber for Mac. The flaw is attributed to improper file-level permissions. CVSS 3.0 is 6.7 with local attack vector, high complexity, low privileges, required user interaction, and high confidentiality, integrity, and availability impact.
Likely exposure
Exposure is likely limited to macOS endpoints running Cisco Jabber for Mac with JCF installed. The source bundle does not identify exact affected or fixed versions, so asset inventory must be compared against Cisco guidance.
Exploitation context
The bundle does not show CISA KEV listing or active exploitation evidence. Exploitation requires an authenticated local attacker, low privileges, high attack complexity, and user interaction, limiting scale compared with remote network vulnerabilities.
Researcher notes
The supplied evidence names improper file-level permissions but lists CWE-20. Exact affected versions, fixed versions, and operational mitigations are not included in the bundle excerpt, so validation depends on Cisco’s advisory details.
Mitigation direction
- Review the Cisco advisory for affected and fixed release guidance.
- Upgrade affected Cisco Jabber for Mac installations if Cisco lists a fixed release.
- Restrict local account access on shared or high-risk macOS endpoints.
- Remove Cisco Jabber for Mac where it is not business-required.
- Monitor vendor guidance for any later clarification or workaround.
Validation and detection
- Inventory macOS endpoints with Cisco Jabber for Mac installed.
- Confirm whether Cisco Jabber Client Framework is present on those systems.
- Compare installed versions against Cisco advisory guidance.
- Check endpoint management records for upgrade or removal completion.
- Review local user access on exposed shared Macs.
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
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-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 lookupExecution behavior lookup
The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2019-12645 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- 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
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:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H0.85.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.0 score
6.7MediumVector: CVSS:3.0/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H
Source materials
- CVE List V5 sourceCVE List V5
- 20190904 Cisco Jabber Client Framework for Mac Code Execution 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.
Improper Input Validation
Improper Input Validation represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.