Security readout for executives and security teams
Plain-English summary
Altova MobileTogether Server versions before 7.3 SP1 can mishandle malicious XML containing exponential entity expansion. In business terms, this is primarily an availability risk: a crafted XML input may consume excessive server resources and disrupt the service. The source bundle does not provide a CVSS score or evidence of active exploitation.
Executive priority
Prioritize remediation for internet-facing or business-critical MobileTogether Server deployments. The known issue points to denial-of-service risk rather than confirmed data theft or code execution, but unsupported or externally reachable instances should be upgraded promptly.
Technical view
CVE-2021-38490 describes XML exponential entity expansion in Altova MobileTogether Server before 7.3 SP1. This is distinct from CVE-2021-37425. The public data supplied does not identify a CVSS vector, CWE, affected CPEs, vulnerable endpoints, authentication requirements, or exploit maturity.
Likely exposure
Organizations running Altova MobileTogether Server before 7.3 SP1 are potentially exposed, especially where XML-processing functionality is reachable by users or integrations. The source bundle does not define exact affected configurations or entry points.
Exploitation context
The CVE is not listed as CISA KEV in the supplied data, and the provided sources do not state active exploitation. Public reporting in the bundle is limited to the CVE record and RedTeam Pentesting advisory reference.
Researcher notes
Evidence is incomplete: no CVSS, CWE, endpoint details, authentication context, or exploit status is present in the supplied bundle. Treat this as an XML parser hardening and availability issue until vendor or advisory details provide more precise exposure conditions.
Mitigation direction
- Upgrade Altova MobileTogether Server to 7.3 SP1 or later where applicable.
- Check Altova vendor guidance for supported fixed versions and deployment-specific mitigations.
- Restrict access to MobileTogether Server interfaces that process XML where business requirements allow.
- Monitor server resource exhaustion, crashes, and unusual XML-processing errors.
Validation and detection
- Inventory MobileTogether Server instances and record exact installed versions.
- Confirm whether any instance is older than 7.3 SP1.
- Review exposure of XML-processing interfaces to internet users, partners, or untrusted clients.
- Check logs for repeated XML parsing failures or resource exhaustion around exposed services.
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.
CVE-2021-38490 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
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
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 and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://www.redteam-pentesting.de/advisories/rt-sa-2021-002CVE reference · x_refsource_MISC
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.