CVE-2008-0960

CRITICAL ⚠ Exploit

SNMPv3 HMAC verification in (1) Net-SNMP 5.2.x before 5.2.4.1, 5.3.x before 5.3.2.1, and 5.4.x before 5.4.1.1; (2) UCD-SNMP; (3) eCos; (4) Juniper Session and Resource Control (SRC) C-series 1.0.0 ...

Affects 25 products across 6 vendors.

CVSS 2.010.0
EPSS68.8%
Percentile99th
PatchUnknown
CVSS Vector — Plain English Remotely exploitable over the network, low complexity.
CWE Weakness Definitions
CWE-287: Improper Authentication

Software does not prove or insufficiently proves that the user is who they claim to be.

Related Attack Patterns (CAPEC)
CAPEC-57 Utilizing REST's Trust in the System Resource to Obtain Sensitive Data
via CWE-287
CAPEC-633 Token Impersonation
via CWE-287
CAPEC-650 Upload a Web Shell to a Web Server
via CWE-287
CAPEC-194 Fake the Source of Data
via CWE-287
CAPEC-593 Session Hijacking
via CWE-287
Show all 10

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

◆ AI Analysis — automated analysis, not human-reviewed

{ "executive_summary": "A critical vulnerability in SNMPv3 HMAC verification affects multiple versions of Net-SNMP and other SNMP implementations, potentially allowing remote attackers to bypass authentication and access sensitive information or perform unauthorized actions.", "attack_vector_detail": "The vulnerability stems from improper handling of HMAC verification in SNMPv3, which could be exploited by an attacker to send specially crafted packets that bypass authentication checks.", "affected_components": [ "Net-SNMP 5.2.x before 5.2.4.1", "Net-SNMP 5.3.x before 5.3.2.1", "Net-SNMP 5.4.x before 5.4.1.1", "UCD-SNMP", "eCos", "Juniper Session and Resource Control (SRC) C-series 1.0.0 through 2.0.0", "NetApp (aka Network Appliance) Data ONTAP 7.3RC1 and 7.3RC2", "SNMP Research before 16.2", "Cisco IOS", "Cisco CatOS", "Cisco ACE",

BSID: BS-2008-GLOBAL-160532-C • Model: /workspace/models/qwen2.5-coder-32b-instruct-bf16

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Frequently Asked Questions
What is CVE-2008-0960?
{ "executive_summary": "A critical vulnerability in SNMPv3 HMAC verification affects multiple versions of Net-SNMP and other SNMP implementations, potentially allowing remote attackers to bypass authentication and access sensitive information or perform unauthorized actions.", "attack_vector_detail": "The vulnerability stems from improper handling of HMAC verification in SNMPv3, which could be exploited by an attacker to send specially crafted packets that bypass authentication checks.", "
What is the CVSS score for CVE-2008-0960?
CVE-2008-0960 has CVSS 10.0 (Critical). Vector: AV:N/AC:L/Au:N/C:C/I:C/A:C. EPSS: 68.8%.
Is CVE-2008-0960 actively exploited?
Public exploit available for CVE-2008-0960. Exploitation risk elevated.
How do I remediate CVE-2008-0960?
Advisory: http://www.debian.org/security/2008/dsa-1663 PSIRT: [email protected]
What systems are affected by CVE-2008-0960?
CVE-2008-0960 affects: Cisco, Cisco, Cisco, Cisco, Cisco, Cisco, Cisco, Cisco.
Vulnerability Details
CVE IDCVE-2008-0960
BSIDBS-2008-GLOBAL-160532-C BreachSpider Global ID
CVSS VectorAV:N/AC:L/Au:N/C:C/I:C/A:C
Published2008-06-10
Last Modified2026-06-16
ICS Relevance100%
Weakness (CWE)
Domains
NETWORK-INFRA
SourceNVD
Official Description

SNMPv3 HMAC verification in (1) Net-SNMP 5.2.x before 5.2.4.1, 5.3.x before 5.3.2.1, and 5.4.x before 5.4.1.1; (2) UCD-SNMP; (3) eCos; (4) Juniper Session and Resource Control (SRC) C-series 1.0.0 through 2.0.0; (5) NetApp (aka Network Appliance) Data ONTAP 7.3RC1 and 7.3RC2; (6) SNMP Research before 16.2; (7) multiple Cisco IOS, CatOS, ACE, and Nexus products; (8) Ingate Firewall 3.1.0 and later and SIParator 3.1.0 and later; (9) HP OpenView SNMP Emanate Master Agent 15.x; and possibly other products relies on the client to specify the HMAC length, which makes it easier for remote attackers to bypass SNMP authentication via a length value of 1, which only checks the first byte.

Source: NIST NVD / MITRE CVE Database

Affected Products
VendorProductAffected Versions
Cisco Mds 9134 —
Cisco Mds 9140 —
Cisco Ios —
Cisco Catos —
Cisco Ios Xr —
Cisco Cisco Ios —
Cisco Nx Os —
Cisco Ace 10 6504 Bundle With 4 Gbps Throughput —
Cisco Ace 10 6509 Bundle With 8 Gbps Throughput —
Cisco Ace 10 Service Module —
Cisco Ace 20 6504 Bundle With 4Gbps Throughput —
Cisco Ace 20 6509 Bundle With 8Gbps Throughput —
Cisco Ace 20 Service Module —
Cisco Ace 4710 —
Cisco Ace Xml Gateway —
Cisco Mds 9120 —
Cisco Mds 9124 —
Ecos Sourceware Ecos —
Ingate Ingate Firewall —
Ingate Ingate Siparator —
Juniper Session And Resource Control 1.0 2.0
Juniper Src Pe 1.0 2.0
Net-Snmp Net Snmp —
Sun Solaris —
Sun Sunos —
Remediation
View Vendor Advisory →
Vendor PSIRT: [email protected]
Threat Intelligence
● Threat Intelligence Validated: October 2026 | Threat Age: 6691 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
Enriched At2026-05-25
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