net-snmp: snmp_pdu_parse() incompletely parsed varBinds left in list of variables
Published Aug 19, 2015
7.5
HIGHCVSS 3.1
EPSS 40.88%
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.
Affected products
No data.
No data.
Red Hat Enterprise Linux 6
net-snmp-1:5.5-54.el6_7.1
Fixed · RHSA-2015:1636
Red Hat Enterprise Linux 7
net-snmp-1:5.7.2-20.ael7b_1.1
Fixed · RHSA-2015:1636
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 6 | net-snmp-1:5.5-54.el6_7.1 | Fixed | RHSA-2015:1636 |
| Red Hat Enterprise Linux 7 | net-snmp-1:5.7.2-20.ael7b_1.1 | Fixed | RHSA-2015:1636 |
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
No CVSS v3.0 score for this CVE.
AV:N/AC:L/Au:N/C:P/I:P/A:P
This CVE is not in the KEV list.
CISA SSVC (Vulnrichment)
Stakeholder-Specific Vulnerability Categorization from CISA ADP.
Exploitation
PoCAutomatable
YesTechnical Impact
PartialDecision
n/aAssessed Dec 4, 2025 · SSVC 2.0.3
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 3, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (26 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 3, 2026 | 40.88% (0.40879) | 98.62th | v5 (v2026.06.15) |
| Jun 15, 2026 | 40.00% (0.40002) | 98.44th | v5 (v2026.06.15) |
| May 4, 2026 | 17.70% (0.17699) | 95.14th | v4 (v2025.03.14) |
| Apr 21, 2026 | 13.93% (0.13928) | 94.34th | v4 (v2025.03.14) |
| Mar 4, 2026 | 17.81% (0.17811) | 95.00th | v4 (v2025.03.14) |
| Mar 1, 2026 | 14.74% (0.14735) | 94.39th | v4 (v2025.03.14) |
| Feb 4, 2026 | 17.81% (0.17811) | 94.94th | v4 (v2025.03.14) |
| Feb 1, 2026 | 14.74% (0.14735) | 94.34th | v4 (v2025.03.14) |
| Jan 4, 2026 | 17.81% (0.17811) | 94.91th | v4 (v2025.03.14) |
| Jan 1, 2026 | 14.74% (0.14735) | 94.32th | v4 (v2025.03.14) |
| Dec 5, 2025 | 17.81% (0.17811) | 94.87th | v4 (v2025.03.14) |
| Dec 4, 2025 | 27.62% (0.27618) | 96.24th | v4 (v2025.03.14) |
| Dec 1, 2025 | 24.09% (0.24085) | 95.87th | v4 (v2025.03.14) |
| Nov 25, 2025 | 27.62% (0.27618) | 96.24th | v4 (v2025.03.14) |
| Nov 4, 2025 | 28.64% (0.28644) | 96.31th | v4 (v2025.03.14) |
| Nov 1, 2025 | 25.04% (0.25035) | 95.96th | v4 (v2025.03.14) |
| Oct 18, 2025 | 28.64% (0.28644) | 96.28th | v4 (v2025.03.14) |
| Mar 30, 2025 | 18.59% (0.18590) | 94.74th | v4 (v2025.03.14) |
| Mar 29, 2025 | 22.83% (0.22830) | 93.35th | v4 (v2025.03.14) |
| Mar 17, 2025 | 18.59% (0.18590) | 94.76th | v4 (v2025.03.14) |
| Dec 17, 2024 | 10.03% (0.10029) | 94.89th | v3 (v2023.03.01) |
| Apr 25, 2024 | 8.19% (0.08185) | 94.26th | v3 (v2023.03.01) |
| Mar 7, 2023 | 7.03% (0.07031) | 92.87th | v3 (v2023.03.01) |
| Mar 6, 2023 | 8.23% (0.08228) | 93.49th | v2 (v2022.01.01) |
| Apr 1, 2022 | 8.23% (0.08228) | 92.89th | v2 (v2022.01.01) |
| Feb 4, 2022 | 8.23% (0.08228) | 82.23th | v2 (v2022.01.01) |
References (18)
- http://lists.opensuse.org/opensuse-updates/2015-09/msg00004.html vendor-advisoryx_refsource_SUSE
- http://rhn.redhat.com/errata/RHSA-2015-1636.html vendor-advisoryx_refsource_REDHAT
- http://sourceforge.net/p/net-snmp/code/ci/f23bcd3ac6ddee5d0a48f9703007ccc738914791/ x_refsource_CONFIRM
- http://support.citrix.com/article/CTX209443 x_refsource_CONFIRM
- http://www.openwall.com/lists/oss-security/2015/04/13/1 mailing-listx_refsource_MLISTExploit
- http://www.openwall.com/lists/oss-security/2015/04/16/15 mailing-listx_refsource_MLIST
- http://www.openwall.com/lists/oss-security/2015/07/31/1 mailing-listx_refsource_MLIST
- http://www.securityfocus.com/bid/76380 vdb-entryx_refsource_BID
- http://www.securitytracker.com/id/1033304 vdb-entryx_refsource_SECTRACK
- http://www.ubuntu.com/usn/USN-2711-1 vendor-advisoryx_refsource_UBUNTU
- https://access.redhat.com/security/cve/CVE-2015-5621 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1212408 x_refsource_CONFIRMIssue Tracking
- https://cert-portal.siemens.com/productcert/pdf/ssa-978220.pdf x_refsource_CONFIRM
- https://nvd.nist.gov/vuln/detail/CVE-2015-5621
- https://sourceforge.net/p/net-snmp/bugs/2615/ x_refsource_CONFIRM
- https://www.cve.org/CVERecord?id=CVE-2015-5621
- https://www.debian.org/security/2018/dsa-4154 vendor-advisoryx_refsource_DEBIAN
- https://www.exploit-db.com/exploits/45547/ exploitx_refsource_EXPLOIT-DB
Change history (0)
No recorded changes yet.