Security readout for executives and security teams
This is an old libX11 denial-of-service issue. A remote attacker can supply a zero resource mask that makes the library loop indefinitely, potentially hanging affected X11 applications. The public bundle does not identify affected versions, supported vendors, CVSS severity, or a named patch. Most concern is legacy systems or applications still using vulnerable libX11/XFree86-era components. Exposure depends on whether untrusted remote input can reach X11 clients or services using the affected library. The bundle does not identify modern affected products. Treat this as a legacy exposure review item, not an emergency, unless critical systems still run old X11 stacks reachable by untrusted users. The main business risk is service disruption from application hangs. Mitigation focus: Check current vendor or distribution guidance for libX11 or XFree86 fixes.; Update libX11 packages where the vendor identifies a fixed release.; Restrict untrusted remote access to X11 clients and related services..
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
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CVE-2000-0620 mapping review
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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
- libx11-infinite-loop-dos(4996)CVE reference · vdb-entry, x_refsource_XF
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.