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CVE-1999-0056

20
FAUCET Score

CVE-1999-0056 describes a buffer overflow vulnerability in Sun's ping program, affecting SunOS. This flaw allows local users to gain root access on the affected system. With a CVSS score of 7.2 (High), it presents a significant risk due to its low attack complexity and complete compromise of confidentiality, integrity, and availability. There is no evidence of active exploitation, nor are there publicly available exploit modules in Metasploit, Nuclei, or ExploitDB, and it has garnered no community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
All Versions ImpactedCPE matchmatch criteria
cpe:2.3:o:sun:sunos:*:*:*:*:*:*:*:*
5.3CPE matchmatch criteria
cpe:2.3:o:sun:sunos:5.3:*:*:*:*:*:*:*
5.4CPE matchmatch criteria
cpe:2.3:o:sun:sunos:5.4:*:*:*:*:*:*:*
5.5CPE matchmatch criteria
cpe:2.3:o:sun:sunos:5.5:*:*:*:*:*:*:*
5.5.1CPE matchmatch criteria
cpe:2.3:o:sun:sunos:5.5.1:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

7.2HIGH

AV:L/AC:L/Au:N/C:C/I:C/A:C

Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Exploitability Score
3.9
Impact Score
10.0
CvssVersion
2.0

Exploit Intelligence

EPSS Score
0.37%
Probability of exploitation in next 30 days
EPSS Percentile
29.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0037 is in the 34th percentile among its peer group of 3,241 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.5 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

sunsolve.sun.com / pub-cgi/retrieve.pl