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CVE-2012-6151· NVD / CVE Program· CNA redhat

Net-SNMP 5.7.1 and earlier, when AgentX is registering to handle a MIB and processing GETNEXT requests, allows remote attackers to cause a d

Net-SNMP 5.7.1 and earlier, when AgentX is registering to handle a MIB and processing GETNEXT requests, allows remote attackers to cause a denial of service (crash or infinite loop, CPU consumption, and hang) by causing the AgentX subagent to timeout.

MediumCVSS 4.3 · v2.0—Proof of concept Fix available
Published
Dec 13, 2013
Updated
Jun 16, 2026
EPSS
9.5% · 95th percentile
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Report tools

JSON

Action score

20

Monitor

Low priority for now.

CVSS
17 / 40 · 4.3 / 10
CISA KEV
0 / 30 · Not listed
EPSS
3 / 30 · 9.5%

Affected systems

VendorProduct
net-snmpnet-snmp
applemac os x
canonicalubuntu linux

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • apple mac os x10.11.0
  • canonical ubuntu linux10.04
  • canonical ubuntu linux12.04
  • canonical ubuntu linux12.10
  • canonical ubuntu linux13.10
  • net-snmp net-snmpup to 5.7.1 inclusive
  • net-snmp net-snmp5.0
  • net-snmp net-snmp5.0.1
  • net-snmp net-snmp5.0.2
  • net-snmp net-snmp5.0.3
  • net-snmp net-snmp5.0.4
  • net-snmp net-snmp5.0.5
  • net-snmp net-snmp5.0.6
  • net-snmp net-snmp5.0.7
  • net-snmp net-snmp5.0.8
  • net-snmp net-snmp5.0.9
  • net-snmp net-snmp5.1
  • net-snmp net-snmp5.1.2
  • net-snmp net-snmp5.2
  • net-snmp net-snmp5.3

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Debian:12net-snmpbefore 5.7.2.1~dfsg-35.7.2.1~dfsg-3
Red Hat:enterprise_linux:5::clientnet-snmpbefore 1:5.3.2.2-22.el5_10.11:5.3.2.2-22.el5_10.1
Red Hat:enterprise_linux:5::clientnet-snmp-debuginfobefore 1:5.3.2.2-22.el5_10.11:5.3.2.2-22.el5_10.1
Red Hat:enterprise_linux:5::clientnet-snmp-libsbefore 1:5.3.2.2-22.el5_10.11:5.3.2.2-22.el5_10.1
Red Hat:enterprise_linux:5::clientnet-snmp-perlbefore 1:5.3.2.2-22.el5_10.11:5.3.2.2-22.el5_10.1
Red Hat:enterprise_linux:5::clientnet-snmp-utilsbefore 1:5.3.2.2-22.el5_10.11:5.3.2.2-22.el5_10.1
Red Hat:enterprise_linux:5::client_workstationnet-snmp-develbefore 1:5.3.2.2-22.el5_10.11:5.3.2.2-22.el5_10.1
Red Hat:enterprise_linux:6::clientnet-snmpbefore 1:5.5-44.el6_4.41:5.5-44.el6_4.4
Red Hat:enterprise_linux:6::clientnet-snmp-debuginfobefore 1:5.5-44.el6_4.41:5.5-44.el6_4.4
Red Hat:enterprise_linux:6::clientnet-snmp-develbefore 1:5.5-44.el6_4.41:5.5-44.el6_4.4
Red Hat:enterprise_linux:6::clientnet-snmp-libsbefore 1:5.5-44.el6_4.41:5.5-44.el6_4.4
Red Hat:enterprise_linux:6::clientnet-snmp-perlbefore 1:5.5-44.el6_4.41:5.5-44.el6_4.4
Red Hat:enterprise_linux:6::clientnet-snmp-pythonbefore 1:5.5-44.el6_4.41:5.5-44.el6_4.4
Red Hat:enterprise_linux:6::clientnet-snmp-utilsbefore 1:5.5-44.el6_4.41:5.5-44.el6_4.4

Other highest-scoring records for the same primary product.

  • CVE-2025-68615Net-SNMP snmptrapd crash
    52Plan
  • CVE-2005-4837snmp_api.c in snmpd in Net-SNMP 5.2.x before 5.2.2, 5.1.x before 5.1.3, and 5.0.x before 5.0.10.2, when running in master agentx mode, allow
    43Plan
  • CVE-2005-1740fixproc in Net-snmp 5.x before 5.2.1-r1 creates temporary files insecurely, which allows local users to modify the contents of those files t
    43Plan
  • CVE-2022-44793handle_ipv6IpForwarding in agent/mibgroup/ip-mib/ip_scalars.c in Net-SNMP 5.4.3 through 5.9.3 has a NULL Pointer Exception bug that can be u
    42Plan
  • CVE-2022-44792handle_ipDefaultTTL in agent/mibgroup/ip-mib/ip_scalars.c in Net-SNMP 5.8 through 5.9.3 has a NULL Pointer Exception bug that can be used by
    42Plan
  • CVE-2015-5621The snmp_pdu_parse function in snmp_api.c in net-snmp 5.7.2 and earlier does not remove the varBind variable in a netsnmp_variable_list item
    42Plan

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
debian:net-snmp5.7.2.1~dfsg-3 · Debian:12Package registry (OSV)
red hat:net-snmp1:5.5-44.el6_4.4 · Red Hat:enterprise_linux:6::clientPackage registry (OSV)
red hat:net-snmp-debuginfo1:5.5-44.el6_4.4 · Red Hat:enterprise_linux:6::clientPackage registry (OSV)
red hat:net-snmp-devel1:5.5-44.el6_4.4 · Red Hat:enterprise_linux:6::clientPackage registry (OSV)
red hat:net-snmp-libs1:5.5-44.el6_4.4 · Red Hat:enterprise_linux:6::clientPackage registry (OSV)
red hat:net-snmp-perl1:5.5-44.el6_4.4 · Red Hat:enterprise_linux:6::clientPackage registry (OSV)
red hat:net-snmp-python1:5.5-44.el6_4.4 · Red Hat:enterprise_linux:6::clientPackage registry (OSV)
red hat:net-snmp-utils1:5.5-44.el6_4.4 · Red Hat:enterprise_linux:6::clientPackage registry (OSV)

Exploit status

Proof of concept available

A public proof of concept or detection signature exists. Exploit knowledge is out there; don't delay patching.

Evidence

  • Exploit-DB entry ×1

Noroxi does not host or link to exploit code. Metasploit module names and Nuclei template ids are shown (names, not code); Exploit-DB entries and PoC repositories are given as counts only.

Public exploit evidence
SourceKindDate
Exploit-DB entrydos2012-09-05

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

  1. First PoC-465 d
  2. Published
  3. TodaySep 30, 2026+4674 d
EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

    If successful

    Confidentiality
    none
    Integrity
    none
    Availability
    P · the service can be disrupted
    Attack complexity
    M
    Confidentiality impact
    None
    Integrity impact
    None
    Availability impact
    P

    CVSS vector

    AV:N/AC:M/Au:N/C:N/I:N/A:P

    nvd-primary

    Attack context

    MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

    MITRE has no CAPEC/ATT&CK mapping for this CWE.

    Noroxi analysis

    No Noroxi analysis for this record yet

    We don't hand-write analysis for all 385,000+ vulnerabilities; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.

    We use this product, ask for help

    Change log

    1. Fix✗ → ✓

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    References

    All records