CVE-2002-1359

CRITICAL ⚠ Exploit

Multiple SSH2 servers and clients do not properly handle large packets or large fields, which may allow remote attackers to cause a denial of service or possibly execute arbitrary code via buffer o...

Affects 7 products across 7 vendors.

CVSS 2.010.0
EPSS80.2%
Percentile100th
PatchUnknown
CVSS Vector — Plain English Remotely exploitable over the network, low complexity.
CWE Weakness Definitions
CWE-20: Improper Input Validation

Software does not validate or incorrectly validates input, allowing attackers to craft data processed in unintended ways.

Related Attack Patterns (CAPEC)
CAPEC-3 Using Leading 'Ghost' Character Sequences to Bypass Input Filters
via CWE-20
CAPEC-7 Blind SQL Injection
via CWE-20
CAPEC-8 Buffer Overflow in an API Call
via CWE-20
CAPEC-9 Buffer Overflow in Local Command-Line Utilities
via CWE-20
CAPEC-10 Buffer Overflow via Environment Variables
via CWE-20
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Mapping is CWE-to-CAPEC per MITRE CAPEC 3.9.

◆ AI Analysis — automated analysis, not human-reviewed

Multiple SSH2 servers and clients are vulnerable to buffer overflow attacks due to improper handling of large packets or fields, potentially leading to denial of service or arbitrary code execution.

BSID: BS-2002-GLOBAL-172858-C • Model: /workspace/models/qwen2.5-coder-32b-instruct-bf16 • Confidence: HIGH

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Frequently Asked Questions
What is CVE-2002-1359?
Multiple SSH2 servers and clients are vulnerable to buffer overflow attacks due to improper handling of large packets or fields, potentially leading to denial of service or arbitrary code execution.
What is the CVSS score for CVE-2002-1359?
CVE-2002-1359 has CVSS 10.0 (Critical). Vector: AV:N/AC:L/Au:N/C:C/I:C/A:C. EPSS: 80.2%.
Is CVE-2002-1359 actively exploited?
Public exploit available for CVE-2002-1359. Exploitation risk elevated.
How do I remediate CVE-2002-1359?
Priority: IMMEDIATE. PSIRT: [email protected]
What systems are affected by CVE-2002-1359?
CVE-2002-1359 affects Cisco Ios; Fissh Ssh Client; Intersoft Securenetterm; Netcomposite Shellguard Ssh; Pragma Systems Secureshell; Putty Putty; Winscp Winscp.
Vulnerability Details
CVE IDCVE-2002-1359
BSIDBS-2002-GLOBAL-172858-C BreachSpider Global ID
CVSS VectorAV:N/AC:L/Au:N/C:C/I:C/A:C
Published2002-12-23
Last Modified2026-06-16
ICS Relevance55%
Weakness (CWE)
Domains
NETWORK-INFRA
SourceNVD
Official Description

Multiple SSH2 servers and clients do not properly handle large packets or large fields, which may allow remote attackers to cause a denial of service or possibly execute arbitrary code via buffer overflow attacks, as demonstrated by the SSHredder SSH protocol test suite.

Source: NIST NVD / MITRE CVE Database

Attack Vector Analysis — CITED Relevance

Remote attackers can exploit this vulnerability by sending specially crafted large packets or fields to the SSH2 server or client, causing a buffer overflow.

Exploitation Likelihood: CRITICAL

Affected Products
VendorProductAffected Versions
Cisco Ios 12.0s 12.0st 12.1e 12.1ea 12.1t 12.2
+2 more12.2s 12.2t
Fissh Ssh Client 1.0a_for_windows
Intersoft Securenetterm 5.4.1
Netcomposite Shellguard Ssh 3.4.6
Pragma Systems Secureshell 2.0
Putty Putty 0.48 0.49 0.53
Winscp Winscp 2.0.0
Remediation

No official vendor advisory link on record. See the CVE record →

Vendor PSIRT: [email protected]
Threat Intelligence
● Threat Intelligence Validated: October 2026 | Threat Age: 8705 Days
CISA known-exploitedNot in KEV catalog
Public Exploit⚠ Available — Reference
PoC CodeNot confirmed
AI Enrichment Record — provenance & audit hash
Model/workspace/models/qwen2.5-coder-32b-instruct-bf16
ConfidenceHIGH
Enriched At2026-05-24
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