Security readout for executives and security teams
Plain-English summary
CVE-2019-7590 is a Windows service configuration weakness in exacqVision Server. Some services use unquoted paths, which can let a low-privileged authenticated user escalate privileges if they can place code in the right local path and the service starts. This is mainly a local post-access risk, not a remote network break-in by itself.
Executive priority
Treat this as a moderate-priority hardening item for physical security or video-management servers. It is unlikely to be the initial intrusion path, but it can increase attacker control after a foothold on an affected host.
Technical view
Affected exacqVision Server 9.6 and 9.8 services include exacqVisionServer, dvrdhcpserver, and mdnsresponder. The issue is CWE-428, unquoted service path. CVSS is 6.7, with local access, high attack complexity, low privileges, and user interaction required, but high confidentiality, integrity, and availability impact after successful privilege escalation.
Likely exposure
Exposure is limited to Windows hosts running affected exacqVision Server versions 9.6 or 9.8. The source says 9.4 and earlier are not affected, 19.03 is not affected, and impact on versions before 8.4 is unknown.
Exploitation context
The CVE is not in CISA KEV, and the supplied sources do not state active exploitation. Public vulnerability writeups exist, which raises awareness, but exploitation still requires authenticated local access and the ability to place code in a relevant local path before service startup.
Researcher notes
The strongest evidence is the CVE record and CISA ICS advisory metadata. Version scope is unusually specific: 9.6 and 9.8 affected, 9.4 and earlier plus 19.03 not affected, pre-8.4 unknown. Do not assume remote exploitability or active exploitation from these sources.
Mitigation direction
- Inventory exacqVision Server versions and identify 9.6 or 9.8 installations.
- Follow Johnson Controls or exacq guidance for vendor-supported remediation.
- Prioritize upgrade to an unaffected release; sources identify 19.03 as not affected.
- Restrict local logon, RDP, and administrative access to affected Windows hosts.
- Review write permissions on system-root paths until remediation is complete.
Validation and detection
- Check installed exacqVision Server version on each Windows host.
- Review Windows service ImagePath values for the named services.
- Confirm service paths are quoted or remediated by a vendor-supported update.
- Verify non-admin users cannot write to relevant system-root locations.
- Record whether any legacy versions before 8.4 are present, since impact is unknown.
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-428: 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 lookupCVE-2019-7590 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
- https://packetstormsecurity.com/files/152128/exacqVision-9.8-Unquoted-Service-Path-Privilege-Escalation.htmlCVE reference · x_refsource_MISC
- https://www.zeroscience.mk/en/vulnerabilities/ZSL-2019-5515.phpCVE reference · x_refsource_MISC
- https://gallery.technet.microsoft.com/scriptcenter/Windows-Unquoted-Service-190f0341CVE reference · x_refsource_MISC
- https://www.us-cert.gov/ics/advisories/icsa-19-199-01CVE reference · x_refsource_MISC
- https://www.johnsoncontrols.com/cyber-solutions/security-advisoriesCVE reference · x_refsource_CONFIRM
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.
Unquoted Search Path or Element
Unquoted Search Path or Element represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.