Security readout for executives and security teams
Plain-English summary
This is a legacy AOL Desktop 9.6 file-opening vulnerability. A malicious .rtx file can crash or compromise a Windows user’s machine if opened. The product is end-of-life, so the practical business issue is whether any old installations remain.
Executive priority
Treat this as urgent only if legacy AOL Desktop is present. Public exploit material and end-of-life status raise risk, but exposure should be narrow in modern environments. Confirm inventory first, then remove unsupported software quickly.
Technical view
The flaw is a stack-based buffer overflow in AOL Desktop 9.6 Tool\rich.rct while parsing .rtx hyperlink tags. Sources attribute it to unsafe strcpy handling of an overly long string, with possible arbitrary code execution after user interaction.
Likely exposure
Exposure is likely limited to endpoints still running AOL Desktop 9.6 and able to open untrusted .rtx files. The structured affected-version data is sparse, so validate against installed software rather than assuming broad exposure.
Exploitation context
Public exploit references exist, including Metasploit and Exploit-DB entries. The source bundle does not show CISA KEV listing or cited evidence of active exploitation. Exploitation is user-assisted through opening a malicious file.
Researcher notes
The CVE record identifies AOL Desktop 9.6, but the structured affected data is not a useful version range. Prioritize asset confirmation, user-assisted file-opening paths, and defensive detection coverage. Do not infer active exploitation from exploit availability alone.
Mitigation direction
- Remove AOL Desktop 9.6 from managed endpoints.
- Migrate users to AOL Desktop Gold or an alternative platform.
- Block or quarantine .rtx attachments from untrusted sources.
- Restrict file associations that launch AOL Desktop for .rtx files.
- Use endpoint controls to prevent unsupported AOL Desktop execution.
- Check current vendor or security-tool guidance before compensating changes.
Validation and detection
- Inventory endpoints for AOL Desktop 9.6 installations.
- Confirm whether .rtx files are associated with AOL Desktop.
- Review email and web gateways for inbound .rtx attachments.
- Check EDR and IPS telemetry for AOL Desktop RTX detections.
- Verify migration or removal on any identified endpoint.
- Document non-exposure if no AOL Desktop 9.6 assets exist.
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-121: 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 lookupExecution behavior lookup
The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2011-10027 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
- 8.4 (4.0)
- Known Exploited
- No
- Published
Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/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
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:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N——VulnCheckVulnerability scoring details
Base CVSS 4.0 score
8.4HighVector: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/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://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/windows/fileformat/aol_desktop_linktag.rbCVE reference, VulnCheck · exploit
- https://www.exploit-db.com/exploits/16085CVE reference, VulnCheck · exploit
- https://www.exploit-db.com/exploits/16107CVE reference, VulnCheck · exploit
- https://www.exploit-db.com/exploits/17150CVE reference, VulnCheck · exploit
- https://www.fortiguard.com/encyclopedia/ips/26516CVE reference, VulnCheck · third-party-advisory
- https://www.vulncheck.com/advisories/aol-desktop-rtx-stack-based-buffer-overflowCVE reference, VulnCheck · third-party-advisory
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.
Stack-based Buffer Overflow
Stack-based Buffer Overflow represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.