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CVE-2009-1887· NVD / CVE Program· CNA redhat

agent/snmp_agent.c in snmpd in net-snmp 5.0.9 in Red Hat Enterprise Linux (RHEL) 3 allows remote attackers to cause a denial of service (dae

agent/snmp_agent.c in snmpd in net-snmp 5.0.9 in Red Hat Enterprise Linux (RHEL) 3 allows remote attackers to cause a denial of service (daemon crash) via a crafted SNMP GETBULK request that triggers a divide-by-zero error. NOTE: this vulnerability exists because of an incorrect fix for CVE-2008-4309.

MediumCVSS 5.0 · v2.0—No exploit Fix available

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Published
Jun 26, 2009
Updated
Jun 16, 2026
EPSS
2.2% · 82th percentile
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Report tools

JSON

Action score

21

Monitor

Low priority for now.

CVSS
20 / 40 · 5.0 / 10
CISA KEV
0 / 30 · Not listed
EPSS
1 / 30 · 2.2%

Affected systems

VendorProduct
net-snmpnet-snmp
redhatenterprise linux

Affected versions

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

  • net-snmp net-snmp5.0.9

Package-level exposure

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

EcosystemPackageAffected rangeFix
Red Hat:enterprise_linux:3::asnet-snmpbefore 0:5.0.9-2.30E.280:5.0.9-2.30E.28
Red Hat:enterprise_linux:3::asnet-snmp-debuginfobefore 0:5.0.9-2.30E.280:5.0.9-2.30E.28
Red Hat:enterprise_linux:3::asnet-snmp-develbefore 0:5.0.9-2.30E.280:5.0.9-2.30E.28
Red Hat:enterprise_linux:3::asnet-snmp-libsbefore 0:5.0.9-2.30E.280:5.0.9-2.30E.28
Red Hat:enterprise_linux:3::asnet-snmp-perlbefore 0:5.0.9-2.30E.280:5.0.9-2.30E.28
Red Hat:enterprise_linux:3::asnet-snmp-utilsbefore 0:5.0.9-2.30E.280:5.0.9-2.30E.28

Same product

net-snmp: all records

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
red hat:net-snmp0:5.0.9-2.30E.28 · Red Hat:enterprise_linux:3::asPackage registry (OSV)
red hat:net-snmp-debuginfo0:5.0.9-2.30E.28 · Red Hat:enterprise_linux:3::asPackage registry (OSV)
red hat:net-snmp-devel0:5.0.9-2.30E.28 · Red Hat:enterprise_linux:3::asPackage registry (OSV)
red hat:net-snmp-libs0:5.0.9-2.30E.28 · Red Hat:enterprise_linux:3::asPackage registry (OSV)
red hat:net-snmp-perl0:5.0.9-2.30E.28 · Red Hat:enterprise_linux:3::asPackage registry (OSV)
red hat:net-snmp-utils0:5.0.9-2.30E.28 · Red Hat:enterprise_linux:3::asPackage registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

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.

No dated events beyond publication.

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.

Credits

All researchers

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

  • No special conditions are required; it is repeatable.

If successful

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

Weakness class (CWE)

CWE-369 · Divide By Zero

CVSS vector

AV:N/AC:L/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.

Change log

  1. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records