Security readout for executives and security teams
A very old flaw in the Linux 2.0.3x kernel's ping command let a local user crash or destabilize the system by sending oversized packets with the record-route option. It only matters to someone with an account on that specific, long-retired kernel. Modern Linux systems are not affected, and there is no business urgency for current environments. Effectively none in current environments. Linux 2.0.3x reached end of life decades ago and is not deployed in supported enterprise fleets. Any residual exposure would be limited to legacy or embedded systems still running that kernel line and only to users with local shell access on those hosts. Informational only. This 1999-era local denial-of-service affects a Linux kernel line that has been out of support for over two decades. No action is required unless the organization operates legacy systems on kernel 2.0.3x, in which case the priority is fleet modernization, not this specific CVE. Mitigation focus: Confirm no production systems still run Linux kernel 2.0.3x; retire or upgrade any that do.; Upgrade affected hosts to a currently supported Linux distribution and kernel.; Restrict local shell access on any legacy systems that cannot be immediately replaced..
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
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ATT&CK lookup starting points
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CVE-1999-0986 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
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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
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.