Vulnerability · CVE-1999-0524
ICMP information such as (1) netmask and (2) timestamp is allowed from arbitrary hosts.
Published Aug 1, 1997 · catalog updated Jun 16, 2026 · Apple mac os x
Check this week
CVE-1999-0524 is not in CISA KEV. FIRST estimates a 32.15% chance of exploitation in the next 30 days. Check whether you run Apple mac os x.
Gaps on this record
- No version range is stored. A customer cannot check an installed version against this record.
- No vendor fix or required action is stored. Compare the linked advisory before you change production.
- Severity
- Medium4.0
- Known exploitation
- Not in CISA/VulnCheck KEV
- EPSS
- 32.15%
- Remediation
- Advisory link
- Affected products
- cpe apple/mac os x · cpe apple/macos · cpe cisco/ios · cpe hp/hp-ux · cpe hp/tru64 · cpe ibm/aix
ICMP information such as (1) netmask and (2) timestamp is allowed from arbitrary hosts.
Are you affected?
Enter the version you run. The result uses only the ranges stored on this record.
The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.
- cpe apple/mac os xversion unspecified
- cpe apple/macosversion unspecified
- cpe cisco/iosversion unspecified
- cpe hp/hp-uxversion unspecified
- cpe hp/tru64version unspecified
- cpe ibm/aixversion unspecified
- cpe ibm/os2version unspecified
- cpe linux/linux kernelversion unspecified
- cpe microsoft/windowsversion unspecified
- cpe novell/netwareversion unspecified
- cpe oracle/solarisversion unspecified
- cpe sco/sco unixversion unspecified
How to fix CVE-1999-0524
Recommended remediation
A patch or advisory reference is linked. Open the original publisher for availability by product version.
Official advisories
What to do
Three questions, each answered from this record only. Confirm the vendor advisory before you patch.
Should you patch?
CVE-1999-0524 is not in CISA KEV. FIRST estimates a 32.15% chance of exploitation in the next 30 days. Check whether you run Apple mac os x.
Which versions are affected?
Affected version ranges are not on this record. Compare the installed version with the linked vendor advisory before you change production.
What should an analyst verify?
CWE-200: Exposure of Sensitive Information. EPSS 32.15%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.
Technology hubs
Code
The project this record applies to. Exploit listings stay in References.
No public source repository is identified for this product.
Timeline
Detection, updates, and resolution for this record.
Aug 1, 1997 · Apple Security Releases
Detected
ICMP information such as (1) netmask and (2) timestamp is allowed from arbitrary hosts.
Jun 16, 2026 · Apple Security Releases
Updated
ICMP information such as (1) netmask and (2) timestamp is allowed from arbitrary hosts.
Sources
- Apple Security ReleasesVendor advisoryCVE-1999-0524
ICMP information such as (1) netmask and (2) timestamp is allowed from arbitrary hosts.
nvd.nist.gov - CVE.orgVulnerability recordCVE-1999-0524
Official CVE identifier
cve.org - FIRST EPSSExploitation probabilityCVE-1999-0524
30-day exploitation probability 32.2%
first.org
References
- Broken Link · descriptions.securescout.com
- Broken Link · descriptions.securescout.com
- Third Party Advisory · kb.juniper.net
- Third Party Advisory · kb.vmware.com
- Broken Link · osvdb.org
- Third Party Advisory · exchange.xforce.ibmcloud.com
- Third Party Advisory · exchange.xforce.ibmcloud.com
- Broken Link · kc.mcafee.com
Freshness
Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.