CVE-2015-5621
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…
- 7.5HighCVSS base score
- 38.3%Exploitation in 30 daysEPSS · top 1.4% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- 1Public exploitsMetasploit, Nuclei and Exploit-DB
Description
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.
Public exploit
An exploit or proof of concept is public: anyone can try it against an unpatched system. The public collections list an Exploit-DB entry for it. A reference of the record is tagged as an exploit. CISA's SSVC rates its exploitation: a proof of concept is public.
Show the exploits2
Exploit-DB1 entry
- net-snmp 5.7.3 - (Authenticated) Denial of Service (PoC) (Exploit-DB entry) (opens in a new tab)
EDB-ID 45547dos, linuxpublished 8 Oct 2018Not verified
References tagged exploit1 reference
- 45547 (opens in a new tab)exploitx_refsource_EXPLOIT-DBx_transferred
Modules, templates and exploits as listed by the Metasploit Framework (BSD-3-Clause), ProjectDiscovery's Nuclei templates (MIT) and the Exploit Database (GPLv2), read once a day. Where the data comes from
Timeline
ID reserved
By mitre
- 28 days later
· 28 days later
Published
- 10 years later
· 10 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| CISA-ADPADP (enrichment) | 3.1 | High7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| NVDNVD · Modified | 3.1 | High7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 38.3% · top 1.4% of all CVEs (11 Nov 2026)
- CISA SSVC
- Exploitation: poc · Automatable: yes · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.5.
Affected products
n/a
- affected n/a
References
References15
- openSUSE-SU-2015:1502 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- 45547 (opens in a new tab)exploitx_refsource_EXPLOIT-DBx_transferred
- http://sourceforge.net/p/net-snmp/code/ci/f23bcd3ac6ddee5d0a48f9703007ccc738914791/ (opens in a new tab)x_refsource_CONFIRMx_transferred
- RHSA-2015:1636 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- 1033304 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
- https://bugzilla.redhat.com/show_bug.cgi?id=1212408 (opens in a new tab)x_refsource_CONFIRMx_transferred
- USN-2711-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- [oss-security] 20150416 Re: net-snmp snmp_pdu_parse() function incompletely initializaition vulnerability (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- [oss-security] 20150413 net-snmp snmp_pdu_parse() function incompletely initializaition vulnerability (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- http://support.citrix.com/article/CTX209443 (opens in a new tab)x_refsource_CONFIRMx_transferred
- DSA-4154 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
- [oss-security] 20150731 Re: net-snmp snmp_pdu_parse() function incompletely initializaition vulnerability (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- https://sourceforge.net/p/net-snmp/bugs/2615/ (opens in a new tab)x_refsource_CONFIRMx_transferred
- 76380 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- https://cert-portal.siemens.com/productcert/pdf/ssa-978220.pdf (opens in a new tab)x_refsource_CONFIRMx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2015-5573 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2015-5621)Record last updated .