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Fencer Vulns
medium 5.0

CVE-2005-2177 json

Net-SNMP 5.0.x before 5.0.10.2, 5.2.x before 5.2.1.2, and 5.1.3, when net-snmp is using stream sockets such as TCP, allows remote attackers…

published 2005-07-10 21 y ago modified 2026-06-16 4 mo ago also EUVD-2005-2178

cvss
5.0
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
3.9%
EPSS 3.9% chance of exploitation in 30 days, percentile 90%
public exploits
0
none known

Summary

Net-SNMP 5.0.x before 5.0.10.2, 5.2.x before 5.2.1.2, and 5.1.3, when net-snmp is using stream sockets such as TCP, allows remote attackers to cause a denial of service (daemon hang and CPU consumption) via a TCP packet of length 1, which triggers an infinite loop.

Patch / fix

  • net-snmp Debian 14, Debian 13, Debian 12 5.2.1.2-1

debian advisories DEBIAN-CVE-2005-2177

  • net-snmp RHEL 4 5.1.2-11.EL4.6
  • net-snmp-libs RHEL 4 5.1.2-11.EL4.6
  • net-snmp-perl RHEL 4 5.1.2-11.EL4.6
  • net-snmp-utils RHEL 4 5.1.2-11.EL4.6
  • net-snmp RHEL 3 5.0.9-2.30E.19
  • net-snmp-libs RHEL 3 5.0.9-2.30E.19
  • net-snmp-perl RHEL 3 5.0.9-2.30E.19
  • net-snmp-utils RHEL 3 5.0.9-2.30E.19

red hat advisories RHSA-2005:395RHSA-2005:373

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2005-2177 updated

security flaw

  • Red Hat Desktop version 3 net-snmp 5.0.9-2.30E.19, net-snmp-libs 5.0.9-2.30E.19, net-snmp-perl 5.0.9-2.30E.19, net-snmp-utils 5.0.9-2.30E.19 Red Hat Enterprise Linux AS version 3 net-snmp 5.0.9-2.30E.19, net-snmp-libs 5.0.9-2.30E.19, net-snmp-perl 5.0.9-2.30E.19, net-snmp-utils 5.0.9-2.30E.19
    fixed: vendor fix RHSA-2005:373
  • Red Hat Enterprise Linux AS version 4 net-snmp 5.1.2-11.EL4.6, net-snmp-libs 5.1.2-11.EL4.6, net-snmp-perl 5.1.2-11.EL4.6, net-snmp-utils 5.1.2-11.EL4.6 Red Hat Enterprise Linux Desktop version 4 net-snmp 5.1.2-11.EL4.6, net-snmp-libs 5.1.2-11.EL4.6, net-snmp-perl 5.1.2-11.EL4.6, net-snmp-utils 5.1.2-11.EL4.6
    fixed: vendor fix RHSA-2005:395
  • Red Hat Enterprise Linux ES version 2.1
    fixed: vendor fix RHSA-2005:720
  • Red Hat Enterprise Linux ES version 3 net-snmp 5.0.9-2.30E.19, net-snmp-libs 5.0.9-2.30E.19, net-snmp-perl 5.0.9-2.30E.19, net-snmp-utils 5.0.9-2.30E.19
    fixed: vendor fix RHSA-2005:373
  • Red Hat Enterprise Linux ES version 4 net-snmp 5.1.2-11.EL4.6, net-snmp-libs 5.1.2-11.EL4.6, net-snmp-perl 5.1.2-11.EL4.6, net-snmp-utils 5.1.2-11.EL4.6
    fixed: vendor fix RHSA-2005:395
  • Red Hat Enterprise Linux WS version 2.1
    fixed: vendor fix RHSA-2005:720
  • Red Hat Enterprise Linux WS version 3 net-snmp 5.0.9-2.30E.19, net-snmp-libs 5.0.9-2.30E.19, net-snmp-perl 5.0.9-2.30E.19, net-snmp-utils 5.0.9-2.30E.19
    fixed: vendor fix RHSA-2005:373
  • Red Hat Enterprise Linux WS version 4 net-snmp 5.1.2-11.EL4.6, net-snmp-libs 5.1.2-11.EL4.6, net-snmp-perl 5.1.2-11.EL4.6, net-snmp-utils 5.1.2-11.EL4.6
    fixed: vendor fix RHSA-2005:395
show 1 more
  • Red Hat Linux Advanced Workstation 2.1
    fixed: vendor fix RHSA-2005:720

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

3.93% chance of exploitation in the next 30 days, higher than 90% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:N/I:N/A:P

Classification

Weakness
  • CWE-20 Improper Input Validation

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.