CVE-1999-0099

CRITICAL

Buffer overflow in syslog utility allows local or remote attackers to gain root privileges.

Affects 7 products across 5 vendors.

BCS7.61
CVSS 2.010.0
EPSS3.2%
Percentile87th
PatchUnknown
CVSS Vector — Plain English Remotely exploitable over the network, low complexity.
◆ SAGE Intelligence — CITED Relevance Research Team

This vulnerability was disclosed in 1995. A critical vulnerability affects Bsdi systems (CVE-1999-0099). No public exploit code is currently available. Isolate affected systems if patching is not feasible.

BSID: BS-1995-GLOBAL-307623-C • Model: rule-based-v1 • Confidence: MEDIUM

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Frequently Asked Questions
What is CVE-1999-0099?
This vulnerability was disclosed in 1995. A critical vulnerability affects Bsdi systems (CVE-1999-0099). No public exploit code is currently available. Isolate affected systems if patching is not feasible.
What is the CVSS score for CVE-1999-0099?
CVE-1999-0099 has CVSS 10.0 (Critical). Vector: AV:N/AC:L/Au:N/C:C/I:C/A:C. EPSS: 3.2%.
Is CVE-1999-0099 actively exploited?
No confirmed active exploitation of CVE-1999-0099 as of 2026-06-20.
How do I remediate CVE-1999-0099?
Priority: MEDIUM.
What systems are affected by CVE-1999-0099?
CVE-1999-0099 affects: Bsdi, Convex, Convex, Cray, Ibm, Sun, Sun.
Vulnerability Details
CVE IDCVE-1999-0099
BSIDBS-1995-GLOBAL-307623-C BreachSpider Global ID
CVSS VectorAV:N/AC:L/Au:N/C:C/I:C/A:C
Published1995-10-19
Last Modified2026-06-16
ICS Relevance0%
SourceNVD
Official Description

Buffer overflow in syslog utility allows local or remote attackers to gain root privileges.

Source: NIST NVD / MITRE CVE Database

Attack Vector Analysis — CITED Relevance

Vulnerability details: Buffer overflow in syslog utility allows local or remote attackers to gain root privileges. CVSS vector: AV:N/AC:L/Au:N/C:C/I:C/A:C.

Exploitation Likelihood: LOW

Affected Products
VendorProductFixed Version
Bsdi Bsd Os —
Convex Spp-Ux —
Convex Convexos —
Cray Unicos —
Ibm Aix —
Sun Sunos —
Sun Solaris —
Remediation

No patch URL on record. Monitor vendor security advisories directly.

Threat Intelligence
● Threat Intelligence Validated: July 2026 | Threat Age: 11232 Days
CISA KEVNot in KEV catalog
Public ExploitNot confirmed
PoC CodeNot confirmed
SAGE Enrichment Record — provenance & audit hash
Modelrule-based-v1
ConfidenceMEDIUM
Enriched At2026-05-24
SHA-512 Audit Hash04f0e377a9b65bafd62e4de91edf6f31b7a9f91b65c3996a082544c4e76c862a08bb3f621477edaba4d0ce764f96882b72facdf5a9e1d6b17eaedd1e3612f1fa
Related CVEs affecting Bsdi
CVE-1999-0042 10.0 Buffer overflow in University of Washington's implementation of IMAP and POP servers. CVE-1999-0046 10.0 Buffer overflow of rlogin program using TERM environmental variable. CVE-1999-0047 10.0 MIME conversion buffer overflow in sendmail versions 8.8.3 and 8.8.4. CVE-1999-0165 10.0 NFS cache poisoning. CVE-1999-0323 10.0 FreeBSD mmap function allows users to modify append-only or immutable files.
View all Bsdi CVEs →

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