Security readout for executives and security teams
Plain-English summary
RTI Connext Professional has a high-severity XML External Entity issue in Core Libraries. If an exposed system processes crafted serialized XML data, an unauthenticated network attacker could cause high confidentiality and availability impact. The bundle does not show active exploitation or public exploit details.
Executive priority
Prioritize remediation for internet-exposed or partner-connected Connext deployments. The vulnerability is high severity and remotely reachable, but the provided evidence does not indicate known active exploitation.
Technical view
CVE-2025-14543 is CWE-611 in RTI Connext Professional Core Libraries, described as allowing Serialized Data External Linking. CVSS 4.0 is 8.8 with network attack vector, low complexity, no privileges, no user interaction, high victim confidentiality impact, and high victim availability impact.
Likely exposure
Exposure is likely limited to organizations running RTI Connext Professional affected branches: 7.4.0 before 7.7.0, 7.0.0 before 7.3.1.1, and older listed 6.x, 5.x, and 4.3x lines.
Exploitation context
The source bundle marks KEV as false and provides no cited evidence of active exploitation. The CVSS vector indicates remotely reachable attack conditions with no privileges or user interaction, but exploit availability is not established by the provided sources.
Researcher notes
Focus validation on version exposure and XML parsing paths in Connext Professional Core Libraries. Avoid assuming product configurations beyond the advisory. Older branch fix notation is incomplete in the bundle, so verify exact maintenance releases with RTI.
Mitigation direction
- Review RTI advisory for fixed versions and supported upgrade paths.
- Upgrade 7.4.x deployments to 7.7.0 or later where applicable.
- Upgrade 7.0.x deployments to 7.3.1.1 or later where applicable.
- For older branches, confirm exact fixed patch level with RTI guidance.
- Restrict network exposure to Connext services pending remediation.
Validation and detection
- Inventory RTI Connext Professional versions across engineering and production systems.
- Identify systems processing serialized XML or externally supplied Connext data.
- Compare installed versions against the affected ranges in the advisory.
- Confirm patched systems report a vendor-fixed version.
- Check compensating network controls around exposed Connext deployments.
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-611: 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-2025-14543 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
- High
- CVSS
- 8.8 (4.0)
- Known Exploited
- No
- Published
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:H/SC:N/SI:N/SA: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.
SSVC decision data
CVSS vector scores
2 official scoresWe 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:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:H/SC:N/SI:N/SA:N——RTICVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:H/SC:N/SI:N/SA:N——RTIVulnerability scoring details
Base CVSS 4.0 score
8.8HighVector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:H/SC:N/SI:N/SA:N
Base CVSS 4.0 score
6.9MediumVector: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:H/SC:N/SI:N/SA:N
Vulnerability timeline
Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.
- CVE reservedCVE Program
The CVE ID was reserved by the assigning CNA.
- CVE publishedCVE Program
The CVE record was published.
- CVE updatedCVE Program
The CVE record metadata indicates this as the latest update time.
ADP provider summaries
Source materials
- CVE List V5 sourceCVE List V5
- https://www.rti.com/vulnerabilities/#cve-2025-14543CVE reference, RTI
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 Restriction of XML External Entity Reference
Improper Restriction of XML External Entity Reference represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.