Net-SNMP snmptrapd crash
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Partial Red Hat: 26 fixed, 2 without a fix
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Red Hat. Impact type from CWE-119 and the CVSS impact.
Summary
net-snmp is a SNMP application library, tools and daemon. Prior to versions 5.9.5 and 5.10.pre2, a specially crafted packet to an net-snmp snmptrapd daemon can cause a buffer overflow and the daemon to crash. This issue has been patched in versions 5.9.5 and 5.10.pre2.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| net-snmp | net-snmp | before 5.9.5; 5.10.pre1 to before 5.10.pre2 | 5.9.5, 5.10.pre2 | Patch available | CNA |
- net-snmp Vendornet-snmp Affected before 5.9.5; 5.10.pre1 to before 5.10.pre2 Fixed in 5.9.5, 5.10.pre2 Patch available CNA
Remediation
- Fix · CNA net-snmp (net-snmp) Fixed in 5.9.5, 5.10.pre2
Red Hat 13 advisories
- RHSA-2026:0926 Released 2026-01-21 · Red Hat rating Importantnet-snmp security update
- Red Hat Enterprise Linux Server (v. 7 ELS) net-snmp-1:5.7.2-49.el7_9.5
- RHSA-2026:0853 Released 2026-01-20 · Red Hat rating Importantnet-snmp security update
- Red Hat Enterprise Linux AppStream E4S (v.8.8) net-snmp-1:5.8-27.el8_8.3, net-snmp-agent-libs-1:5.8-27.el8_8.3, net-snmp-devel-1:5.8-27.el8_8.3 +2
- Red Hat Enterprise Linux AppStream TUS (v.8.8) net-snmp-1:5.8-27.el8_8.3, net-snmp-agent-libs-1:5.8-27.el8_8.3, net-snmp-devel-1:5.8-27.el8_8.3 +2
- Red Hat Enterprise Linux BaseOS E4S (v.8.8) net-snmp-1:5.8-27.el8_8.3, net-snmp-libs-1:5.8-27.el8_8.3
- Red Hat Enterprise Linux BaseOS TUS (v.8.8) net-snmp-1:5.8-27.el8_8.3, net-snmp-libs-1:5.8-27.el8_8.3
- RHSA-2026:0851 Released 2026-01-20 · Red Hat rating Importantnet-snmp security update
- Red Hat Enterprise Linux AppStream AUS (v.8.6) net-snmp-1:5.8-25.el8_6.3, net-snmp-agent-libs-1:5.8-25.el8_6.3, net-snmp-devel-1:5.8-25.el8_6.3 +2
- Red Hat Enterprise Linux AppStream E4S (v.8.6) net-snmp-1:5.8-25.el8_6.3, net-snmp-agent-libs-1:5.8-25.el8_6.3, net-snmp-devel-1:5.8-25.el8_6.3 +2
- Red Hat Enterprise Linux AppStream TUS (v.8.6) net-snmp-1:5.8-25.el8_6.3, net-snmp-agent-libs-1:5.8-25.el8_6.3, net-snmp-devel-1:5.8-25.el8_6.3 +2
- Red Hat Enterprise Linux BaseOS AUS (v.8.6) net-snmp-1:5.8-25.el8_6.3, net-snmp-libs-1:5.8-25.el8_6.3
- Red Hat Enterprise Linux BaseOS E4S (v.8.6) net-snmp-1:5.8-25.el8_6.3, net-snmp-libs-1:5.8-25.el8_6.3
- Red Hat Enterprise Linux BaseOS TUS (v.8.6) net-snmp-1:5.8-25.el8_6.3, net-snmp-libs-1:5.8-25.el8_6.3
Show 10 more Red Hat advisories
- RHSA-2026:0852 Released 2026-01-20 · Red Hat rating Importantnet-snmp security update
- Red Hat Enterprise Linux AppStream AUS (v.8.4) net-snmp-1:5.8-20.el8_4.3, net-snmp-agent-libs-1:5.8-20.el8_4.3, net-snmp-devel-1:5.8-20.el8_4.3 +2
- Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.4) net-snmp-1:5.8-20.el8_4.3, net-snmp-agent-libs-1:5.8-20.el8_4.3, net-snmp-devel-1:5.8-20.el8_4.3 +2
- Red Hat Enterprise Linux BaseOS AUS (v.8.4) net-snmp-1:5.8-20.el8_4.3, net-snmp-libs-1:5.8-20.el8_4.3
- Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.4) net-snmp-1:5.8-20.el8_4.3, net-snmp-libs-1:5.8-20.el8_4.3
- RHSA-2026:0850 Released 2026-01-20 · Red Hat rating Importantnet-snmp security update
- Red Hat Enterprise Linux AppStream AUS (v. 8.2) net-snmp-1:5.8-14.el8_2.6, net-snmp-agent-libs-1:5.8-14.el8_2.6, net-snmp-devel-1:5.8-14.el8_2.6 +1
- Red Hat Enterprise Linux BaseOS AUS (v. 8.2) net-snmp-1:5.8-14.el8_2.6, net-snmp-libs-1:5.8-14.el8_2.6
- RHSA-2026:0812 Released 2026-01-19 · Red Hat rating Importantnet-snmp security update
- Red Hat Enterprise Linux AppStream EUS (v.9.6) net-snmp-1:5.9.1-17.el9_6.1
- RHSA-2026:0813 Released 2026-01-19 · Red Hat rating Importantnet-snmp security update
- Red Hat Enterprise Linux AppStream EUS (v.9.4) net-snmp-1:5.9.1-13.el9_4.4
- RHSA-2026:0814 Released 2026-01-19 · Red Hat rating Importantnet-snmp security update
- Red Hat Enterprise Linux AppStream E4S (v.9.2) net-snmp-1:5.9.1-11.el9_2.3
- RHSA-2026:0815 Released 2026-01-19 · Red Hat rating Importantnet-snmp security update
- Red Hat Enterprise Linux AppStream E4S (v.9.0) net-snmp-1:5.9.1-7.el9_0.3
- RHSA-2026:0810 Released 2026-01-19 · Red Hat rating Importantnet-snmp security update
- Red Hat Enterprise Linux AppStream EUS (v. 10.0) net-snmp-1:5.9.4-15.el10_0.2
- RHSA-2026:0750 Released 2026-01-19 · Red Hat rating Importantnet-snmp security update
- Red Hat Enterprise Linux AppStream (v. 8) net-snmp-1:5.8-33.el8_10, net-snmp-agent-libs-1:5.8-33.el8_10, net-snmp-devel-1:5.8-33.el8_10 +2
- Red Hat Enterprise Linux BaseOS (v. 8) net-snmp-1:5.8-33.el8_10, net-snmp-libs-1:5.8-33.el8_10
- RHSA-2026:0696 Released 2026-01-15 · Red Hat rating Importantnet-snmp security update
- Red Hat Enterprise Linux AppStream (v. 9) net-snmp-1:5.9.1-17.el9_7.1, net-snmp-agent-libs-1:5.9.1-17.el9_7.1, net-snmp-devel-1:5.9.1-17.el9_7.1 +4
- RHSA-2026:0668 Released 2026-01-15 · Red Hat rating Importantnet-snmp security update
- Red Hat Enterprise Linux AppStream (v. 10) net-snmp-1:5.9.4-15.el10_1.2, net-snmp-agent-libs-1:5.9.4-15.el10_1.2, net-snmp-devel-1:5.9.4-15.el10_1.2 +5
Vendor assessments
Red Hat
Red Hat rating: Important. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 6 | Affected | No fix planned: Will not fix |
| Red Hat OpenShift Container Platform 4 | Affected | No fix yet |
| Red Hat Enterprise Linux AppStream (v. 10) | Fixed | RHSA-2026:0668 |
| Red Hat Enterprise Linux AppStream (v. 8) | Fixed | RHSA-2026:0750 |
| Red Hat Enterprise Linux AppStream (v. 9) | Fixed | RHSA-2026:0696 |
| Red Hat Enterprise Linux AppStream AUS (v. 8.2) | Fixed | RHSA-2026:0850 |
| Red Hat Enterprise Linux AppStream AUS (v.8.4) | Fixed | RHSA-2026:0852 |
| Red Hat Enterprise Linux AppStream AUS (v.8.6) | Fixed | RHSA-2026:0851 |
| Red Hat Enterprise Linux AppStream E4S (v.8.6) | Fixed | RHSA-2026:0851 |
| Red Hat Enterprise Linux AppStream E4S (v.8.8) | Fixed | RHSA-2026:0853 |
| Red Hat Enterprise Linux AppStream E4S (v.9.0) | Fixed | RHSA-2026:0815 |
| Red Hat Enterprise Linux AppStream E4S (v.9.2) | Fixed | RHSA-2026:0814 |
| Red Hat Enterprise Linux AppStream EUS (v. 10.0) | Fixed | RHSA-2026:0810 |
| Red Hat Enterprise Linux AppStream EUS (v.9.4) | Fixed | RHSA-2026:0813 |
| Red Hat Enterprise Linux AppStream EUS (v.9.6) | Fixed | RHSA-2026:0812 |
| Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.4) | Fixed | RHSA-2026:0852 |
| Red Hat Enterprise Linux AppStream TUS (v.8.6) | Fixed | RHSA-2026:0851 |
| Red Hat Enterprise Linux AppStream TUS (v.8.8) | Fixed | RHSA-2026:0853 |
| Red Hat Enterprise Linux BaseOS (v. 8) | Fixed | RHSA-2026:0750 |
| Red Hat Enterprise Linux BaseOS AUS (v. 8.2) | Fixed | RHSA-2026:0850 |
| Red Hat Enterprise Linux BaseOS AUS (v.8.4) | Fixed | RHSA-2026:0852 |
| Red Hat Enterprise Linux BaseOS AUS (v.8.6) | Fixed | RHSA-2026:0851 |
| Red Hat Enterprise Linux BaseOS E4S (v.8.6) | Fixed | RHSA-2026:0851 |
| Red Hat Enterprise Linux BaseOS E4S (v.8.8) | Fixed | RHSA-2026:0853 |
| Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.4) | Fixed | RHSA-2026:0852 |
| Red Hat Enterprise Linux BaseOS TUS (v.8.6) | Fixed | RHSA-2026:0851 |
| Red Hat Enterprise Linux BaseOS TUS (v.8.8) | Fixed | RHSA-2026:0853 |
| Red Hat Enterprise Linux Server (v. 7 ELS) | Fixed | RHSA-2026:0926 |
Not affected: 7 products
- Red Hat Enterprise Linux AppStream E4S (v.9.0)
- Red Hat Enterprise Linux AppStream E4S (v.9.2)
- Red Hat Enterprise Linux AppStream EUS (v. 10.0)
- Red Hat Enterprise Linux AppStream EUS (v.9.4)
- Red Hat Enterprise Linux AppStream EUS (v.9.6)
- Red Hat Enterprise Linux Server (v. 7 ELS)
- Red Hat Enterprise Linux Server Optional (v. 7 ELS)
Timeline
- 2026-10-02 Threatist record created from CVE-2025-68615
References
Advisory 4
- https://github.com/net-snmp/net-snmp/security/advisories/GHSA-4389-rwqf-q9gq
- http://www.openwall.com/lists/oss-security/2026/01/09/2
- https://lists.debian.org/debian-lts-announce/2026/01/msg00000.html
- https://www.vicarius.io/vsociety/posts/cve-2025-68615-mitigation-script-buffer-overflow-vulnerability-affecting-net-snmp
More Net-snmp vulnerabilities
- TI-2018-12840 snmp_oid_compare in snmplib/snmp_api.c in Net-SNMP before 5.8 has a NULL Pointer… CVSS 3.1HIGH 7.5
- TI-2015-04735 The snmp_pdu_parse function in snmp_api.c in net-snmp 5.7.2 and earlier does not remove… CVSS 3.1HIGH 7.5
- TI-2022-22058 handle_ipv6IpForwarding in agent/mibgroup/ip-mib/ip_scalars.c in Net-SNMP 5.4.3 through… CVSS 3.1MEDIUM 6.5
- TI-2022-22057 handle_ipDefaultTTL in agent/mibgroup/ip-mib/ip_scalars.c in Net-SNMP 5.8 through 5.9.3… CVSS 3.1MEDIUM 6.5
- TI-2007-05612 The SNMP agent (snmp_agent.c) in net-snmp before 5.4.1 allows remote attackers to cause a… CVSS 2.0HIGH 7.8
- TI-2005-04567 snmp_api.c in snmpd in Net-SNMP 5.2.x before 5.2.2, 5.1.x before 5.1.3, and 5.0.x before… CVSS 2.0HIGH 10.0
Sources
- CVE-2025-68615 · CVE Program
- CVE-2025-68615 · NVD
- FIRST EPSS
- CVE-2025-68615 · Red Hat security data · CC BY 4.0
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