Security readout for executives and security teams
Plain-English summary
This issue affects Acronis Cyber Protect 15 on Windows before build 28035. A local DLL hijacking flaw could let someone who already has local access gain higher privileges. The public bundle does not provide CVSS details or evidence of active exploitation.
Executive priority
Treat this as a targeted endpoint hardening item, not an internet-wide emergency. Remediate affected Windows builds promptly because privilege escalation in security software can increase attacker control after compromise.
Technical view
CVE-2021-44198 is a CWE-427 DLL hijacking issue in Acronis Cyber Protect 15 for Windows before build 28035. The stated impact is local privilege escalation. The provided sources do not include a CVSS vector, detailed attack prerequisites, or proof of exploitation.
Likely exposure
Exposure is limited to environments running Acronis Cyber Protect 15 on Windows builds earlier than 28035. The source bundle does not identify other affected Acronis products, platforms, or version branches.
Exploitation context
CISA KEV status is false in the bundle, and no cited source reports active exploitation. Because the issue is local privilege escalation, it is most relevant after initial endpoint access or insider misuse.
Researcher notes
Evidence is sparse. The bundle identifies product, platform, fixed build threshold, CWE-427 class, and local privilege escalation impact, but not exploit mechanics, CVSS scoring, affected components, or compensating controls.
Mitigation direction
- Identify Acronis Cyber Protect 15 Windows installations and current build numbers.
- Update affected installations to build 28035 or later, per vendor advisory scope.
- Review Acronis advisory SEC-2128 for any updated vendor instructions.
- Prioritize endpoints where Acronis runs with elevated privileges or broad management reach.
Validation and detection
- Confirm installed Acronis Cyber Protect 15 build is 28035 or later.
- Verify asset inventory covers Windows endpoints running Acronis Cyber Protect 15.
- Check vulnerability management tooling for CVE-2021-44198 detection coverage.
- Review endpoint telemetry for unusual privilege changes involving Acronis processes.
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-427: 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 lookupPrivilege behavior lookup
The CVE wording references privilege impact, so privilege escalation and authorization behavior review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2021-44198 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://security-advisory.acronis.com/advisories/SEC-2128CVE 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.
Uncontrolled Search Path Element
Uncontrolled Search Path Element represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.