How this vulnerability can be exploited
This issue can be reached with local access to the system, attack complexity is low, an attacker needs low-level privileges on the target. No user interaction is required. The scope is changed, meaning a successful attack can affect components beyond the vulnerable one. Rated impact: confidentiality high, integrity high, availability high.
CVSS metrics in full
The score comes from this vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
- Attack vector: Local — a local account, shell or session on the host is needed.
- Attack complexity: Low — the attack works reliably, with no preparation.
- Privileges required: Low — an ordinary user account is enough.
- User interaction: None — nobody has to be tricked into anything.
- Scope: Changed — a successful attack reaches components beyond the vulnerable one.
- Confidentiality impact: High — total loss, or loss the attacker controls.
- Integrity impact: High — total loss, or loss the attacker controls.
- Availability impact: High — total loss, or loss the attacker controls.
Weakness class
CVE-2026-20046 is classified as CWE-264: Permissions, Privileges, and Access Controls. Permissions or privilege boundaries are set or enforced incorrectly, letting an actor act beyond their intended level.
Affected software
CVE-2026-20046 is recorded against 1 package.
Timeline and source
Published on 11 March 2026 and last revised on 1 July 2026. No public exploit is currently recorded for this entry. Record sourced from NVD.
References
sec.cloudapps.cisco.com
Other advisories for this package
ios-xr has other advisories on record. If you are patching this one, these are worth checking on the same host:
Same weakness in other software
These advisories are the same class of weakness (CWE-264: Permissions, Privileges, and Access Controls) in other software:
