CVE-1999-1237

CRITICAL

Multiple buffer overflows in smbvalid/smbval SMB authentication library, as used in Apache::AuthenSmb and possibly other modules, allows remote attackers to execute arbitrary commands via (1) a lon...

Affects 1 product across 1 vendor.

BCS7.84
CVSS 2.010.0
EPSS8.1%
Percentile95th
PatchUnknown
CVSS Vector — Plain English Remotely exploitable over the network, low complexity.
CWE Weakness Definitions
CWE-120: Buffer Copy without Checking Size (Classic Buffer Overflow)

Program copies data to a buffer without verifying the source data fits within the destination.

Related Attack Patterns (CAPEC)
CAPEC-8 Buffer Overflow in an API Call
via CWE-120
CAPEC-9 Buffer Overflow in Local Command-Line Utilities
via CWE-120
CAPEC-10 Buffer Overflow via Environment Variables
via CWE-120
CAPEC-14 Client-side Injection-induced Buffer Overflow
via CWE-120
CAPEC-24 Filter Failure through Buffer Overflow
via CWE-120
Show all 13

Mapping is CWE-to-CAPEC per MITRE CAPEC 3.9.

◆ AI Analysis — automated analysis, not human-reviewed

This vulnerability was disclosed in 1999. A critical vulnerability affects Apache systems (CVE-1999-1237). No public exploit code is currently available. Isolate affected systems if patching is not feasible.

BSID: BS-1999-GLOBAL-308365-C • Model: rule-based-v1 • Confidence: MEDIUM

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Frequently Asked Questions
What is CVE-1999-1237?
This vulnerability was disclosed in 1999. A critical vulnerability affects Apache systems (CVE-1999-1237). No public exploit code is currently available. Isolate affected systems if patching is not feasible.
What is the CVSS score for CVE-1999-1237?
CVE-1999-1237 has CVSS 10.0 (Critical). Vector: AV:N/AC:L/Au:N/C:C/I:C/A:C. EPSS: 8.1%.
Is CVE-1999-1237 actively exploited?
No confirmed active exploitation of CVE-1999-1237 as of 2026-06-20.
How do I remediate CVE-1999-1237?
Priority: MEDIUM.
What systems are affected by CVE-1999-1237?
CVE-1999-1237 affects: Apache.
Vulnerability Details
CVE IDCVE-1999-1237
BSIDBS-1999-GLOBAL-308365-C BreachSpider Global ID
CVSS VectorAV:N/AC:L/Au:N/C:C/I:C/A:C
Published1999-06-06
Last Modified2026-06-16
ICS Relevance15%
Weakness (CWE)
Buffer Copy without Checking Size (Classic Buffer Overflow)
SourceNVD
Official Description

Multiple buffer overflows in smbvalid/smbval SMB authentication library, as used in Apache::AuthenSmb and possibly other modules, allows remote attackers to execute arbitrary commands via (1) a long username, (2) a long password, and (3) other unspecified methods.

Source: NIST NVD / MITRE CVE Database

Attack Vector Analysis — CITED Relevance

Vulnerability details: Multiple buffer overflows in smbvalid/smbval SMB authentication library, as used in Apache::AuthenSmb and possibly other modules, allows remote attackers to execute arbitrary commands via (1) a long username, (2) a long password, and (3) other unspecified methods. CVSS vector: AV:N/AC:L/Au:N/C:C/I:C/A:C.

Exploitation Likelihood: LOW

Affected Products
VendorProductFixed Version
Apache Http Server —
Remediation

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

Threat Intelligence
● Threat Intelligence Validated: September 2026 | Threat Age: 9976 Days
CISA KEVNot in KEV catalog
Public ExploitNot confirmed
PoC CodeNot confirmed
AI Enrichment Record — provenance & audit hash
Modelrule-based-v1
ConfidenceMEDIUM
Enriched At2026-05-24
SHA-512 Audit Hasha5aa305dc5879049899e63ad7bff9f4255e3afc243faf178f0fe413993fd1861e9ed8b7d9399ff0a047e45510eecc7924722b62d8b240a12e19b18a4966fddff
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