Security readout for executives and security teams
Plain-English summary
This Tor issue could keep using an old bridge after a user removed it from current configuration. If an attacker can monitor traffic to that bridge port, they may learn sensitive information about clients in limited, opportunistic circumstances.
Executive priority
Prioritize remediation if the organization uses Tor bridges for sensitive privacy, research, or operational workflows. Otherwise, treat this as legacy software hygiene.
Technical view
Tor before 0.2.2.24-alpha may continue connecting to a previously configured, still reachable bridge that is no longer configured. The CVE describes possible client information exposure through network monitoring of the bridge port. No CVSS score, CWE, or detailed affected CPE data is provided.
Likely exposure
Exposure appears limited to Tor deployments older than 0.2.2.24-alpha using bridge configurations. The provided sources do not identify other affected products or platforms.
Exploitation context
CISA KEV status is false in the supplied bundle. The CVE describes a theoretical or opportunistic remote information exposure condition, but the provided sources do not show active exploitation.
Researcher notes
The key research question is whether a client continues to contact a removed bridge while it remains reachable. Evidence is sparse: the bundle provides the CVE text and Tor release reference, but no CVSS, CWE, or exploit details.
Mitigation direction
- Upgrade Tor to 0.2.2.24-alpha or later where applicable.
- Confirm current vendor guidance for supported Tor versions.
- Review bridge configurations and remove stale or unintended entries.
- Retire unsupported Tor releases from managed systems.
Validation and detection
- Inventory Tor versions across endpoints and servers.
- Identify systems using Tor bridge configuration.
- Check whether any instance is older than 0.2.2.24-alpha.
- Review network logs for unexpected traffic to retired bridge ports.
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-2011-4896 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://blog.torproject.org/blog/tor-02224-alpha-outCVE reference · x_refsource_CONFIRM
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.