THREATPORT/VULNERABILITY/CVE-2008-4309
HIGH SEVERITY

CVE-2008-4309

Net Snmp vulnerability

CVSS
7.5
EPSS
5.0%
EPSS pct
91th
Exploited
No known
Integer overflow in the netsnmp_create_subtree_cache function in agent/snmp_agent.c in net-snmp 5.4 before 5.4.2.1, 5.3 before 5.3.2.3, and 5.2 before 5.2.5.1 allows remote attackers to cause a denial of service (crash) via a crafted SNMP GETBULK request, which triggers a heap-based buffer overflow, related to the number of responses or repeats.
Affected vendor
Net Snmp
Affected product
Net Snmp
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness type (CWE)
  • CWE-20 — Improper Input Validation
  • CWE-190 — Integer Overflow or Wraparound
Published
2008-10-31

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring no privileges, no user interaction. Successful exploitation leads to high impact to availability.

Its EPSS score of 5.0% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 91% of all scored CVEs.

Check your external exposure to CVE-2008-4309

  • Confirm whether Net Snmp Net Snmp is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2008-4309.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2008-4309

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2008-4309 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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