Security readout for executives and security teams
Plain-English summary
Cisco ISE management users could be exposed to stored cross-site scripting if an authenticated attacker convinces an interface user to open a crafted link. Successful exploitation could run script in the management interface context or read browser-accessible sensitive information.
Executive priority
Treat as a moderate-priority identity infrastructure issue. It is not listed as actively exploited, but Cisco ISE is security-critical and management-interface compromise can affect administrative trust.
Technical view
CVE-2019-12637 is a CWE-79 issue in Cisco Identity Services Engine Software’s web management interface. The weakness is insufficient validation of user-supplied input, with CVSS 3.0 score 5.4 and vector AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.
Likely exposure
Exposure is most relevant where Cisco ISE web management is reachable by authenticated users beyond tightly controlled admin networks. The source bundle does not specify affected versions.
Exploitation context
The bundle does not show active exploitation, and KEV is false. Exploitation requires an authenticated remote attacker and user interaction by a management-interface user.
Researcher notes
Do not assume all Cisco ISE versions are affected from this bundle alone. The key validation gap is exact version exposure and Cisco’s fixed-release guidance in the vendor advisory.
Mitigation direction
- Check Cisco’s advisory for affected and fixed Cisco ISE Software releases.
- Apply Cisco-provided updates or workarounds when confirmed applicable.
- Restrict ISE management interface access to trusted administrative networks.
- Limit management roles and accounts to least privilege.
- Warn ISE administrators against opening untrusted management-interface links.
Validation and detection
- Inventory Cisco ISE deployments and record running software versions.
- Compare versions against Cisco’s advisory for affected and fixed release details.
- Confirm the management interface is not broadly reachable.
- Review administrator access logs for unusual authenticated management activity.
- Verify privileged users follow link-handling guidance for ISE administration.
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-79: User-session and phishing behavior lookup
Client-side and session-facing weaknesses should be reviewed alongside initial-access and user-execution behaviors. 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 lookupCVE-2019-12637 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
- 5.4 (3.0)
- Known Exploited
- No
- Published
Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
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:L/UI:R/S:C/C:L/I:L/A:N2.32.7Primary CVE scoreVulnerability scoring details
Base CVSS 3.0 score
5.4MediumVector: CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Source materials
- CVE List V5 sourceCVE List V5
- 20191016 Cisco Identity Services Engine Multiple Stored Cross-Site Scripting VulnerabilitiesCVE 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 Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.