CVE-2026-101979
8.8HighPublished 14 Oct 2026 · NVD status: Awaiting Analysis · AI triage by gemini-3.8-flash
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
- Impact
- Full C/I/A compromise
- Weakness
- CWE-121
Impact
Attackers with SNMP read access can execute arbitrary code with root privileges or crash the system via a crafted SNMP packet. Exploitation requires network access with SNMP and AAA enabled on the device.
Root cause
A stack-based buffer overflow in the authd daemon triggered when processing specific SNMP requests.
Affected systems
Versions not listed — check the vendor advisory.
CVSS v3.1 · CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Fix & remediation
Upgrade Junos OS / Junos OS Evolved to the resolved release specified in Juniper advisory JSA112187; if patching immediately is not possible, restrict SNMP access using firewall filters or disable SNMP.
AI-suggested. Run it in staging first and check it against the vendor advisory. Why?
NVD description
A Stack-based Buffer Overflow vulnerability in the authd Juniper Networks Junos OS and Junos OS Evolved allows a network attacker with SNMP read access to execute code with root privileges or cause a denial of service via a specific SNMP packet, when SNMP and AAA are enabled.