Security readout for executives and security teams
Plain-English summary
This issue can make affected F-Secure and WithSecure scanning components loop while unpacking certain Windows PE files, potentially crashing the scanning engine. The business risk is loss or degradation of malware scanning on affected 32-bit products, not data theft or system takeover based on the supplied sources.
Executive priority
Treat as a moderate operational resilience issue. Prioritize environments still running affected 32-bit security products, especially gateways or endpoints that inspect untrusted files. It is not supported as an emergency exploitation case by the supplied sources.
Technical view
CVE-2022-28886 is a CWE-835 infinite-loop flaw in aerdl.so/aerdl.dll during PE unpacking. The supplied CVSS vector is 4.3 medium, with network attack vector, low complexity, high privileges required, user interaction required, and low confidentiality, integrity, and availability impact.
Likely exposure
Exposure is limited to the listed F-Secure and WithSecure Endpoint Protection products for Windows on 32-bit operating systems, plus F-Secure Linux Security 32 and F-Secure Internet Gatekeeper. The bundle says all versions, but does not provide exact fixed versions.
Exploitation context
The source bundle does not identify active exploitation, and KEV status is false. The described outcome is denial of service against the scanning engine when processing PE files, with no source-supported evidence of code execution or privilege escalation.
Researcher notes
Evidence is sparse: the bundle names the vulnerable unpacking components and affected product families, but not patch identifiers, exploit maturity, or detailed conditions. Avoid assuming 64-bit products, unrelated F-Secure offerings, or public exploit availability without additional vendor confirmation.
Mitigation direction
- Inventory affected F-Secure and WithSecure 32-bit deployments.
- Check F-Secure and WithSecure advisories for fixed versions or vendor guidance.
- Update affected products and scanning engines when vendor fixes are confirmed.
- Retire 32-bit endpoint protection deployments where feasible.
- Monitor scanner health for crashes or repeated service restarts.
Validation and detection
- Confirm product name, version, and operating system architecture on endpoints.
- Review vendor advisories for CVE-2022-28886 and applicable remediation status.
- Check endpoint logs for scanner hangs, crashes, or restart loops.
- Verify security tooling reports healthy scanning after updates.
- Document any unsupported 32-bit systems as residual risk.
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-835: 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-2022-28886 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
- 4.3 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:L/I:L/A:L
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:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:L/I:L/A:L0.93.4Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
4.3MediumVector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:L/I:L/A:L
Source materials
- CVE List V5 sourceCVE List V5
- https://www.f-secure.com/en/business/support-and-downloads/security-advisoriesCVE reference · x_refsource_MISC
- https://www.withsecure.com/en/support/security-advisoriesCVE 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.
Loop with Unreachable Exit Condition ('Infinite Loop')
Loop with Unreachable Exit Condition ('Infinite Loop') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.