CVE-2015-5621
HIGHEPSS 98th pctlDescription
The 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 when parsing of the SNMP PDU fails, which allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via a crafted packet.
CVSS v3 Vector
Exploitability
Impact
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Exploit Intelligence
Very high risk: more likely to be exploited than 98% of all known CVEs.
References
- http://lists.opensuse.org/opensuse-updates/2015-09/msg00004.html
- http://rhn.redhat.com/errata/RHSA-2015-1636.html
- http://sourceforge.net/p/net-snmp/code/ci/f23bcd3ac6ddee5d0a48f9703007ccc738914791/
- http://support.citrix.com/article/CTX209443
- http://www.openwall.com/lists/oss-security/2015/04/13/1
- http://www.openwall.com/lists/oss-security/2015/04/16/15
- http://www.openwall.com/lists/oss-security/2015/07/31/1
- http://www.securityfocus.com/bid/76380
- http://www.securitytracker.com/id/1033304
- http://www.ubuntu.com/usn/USN-2711-1
- https://bugzilla.redhat.com/show_bug.cgi?id=1212408
- https://cert-portal.siemens.com/productcert/pdf/ssa-978220.pdf
- https://sourceforge.net/p/net-snmp/bugs/2615/
- https://www.debian.org/security/2018/dsa-4154
- https://www.exploit-db.com/exploits/45547/
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Start freeThis product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-05-06.