CVE-2016-1335

7.5 HIGH 3% exploit odds Fix listed

What it is

The SSH implementation in Cisco StarOS before 19.3.M0.62771 and 20.x before 20.0.M0.62768 on ASR 5000 devices mishandles a multi-user public-key authentication configuration, which allows remote authenticated users to gain privileges by establishing a connection from an endpoint that was previously used for an administrator's connection, aka Bug ID CSCux22492.

At a glance

Exploitability: Can be exploited over the network with a low-privilege account. High risk of data exposure, data tampering, service disruption.
Exploit odds: 3.4% chance of exploitation in the next 30 days (EPSS).
Fix: A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

2016-02-19 19:59 UTC PublishedDisclosed publicly on CVE.org and NVD
2026-06-17 00:41 UTC Last updatedMost recent change to the record

Why it ranks here

Exploited in the wild: no, CISA does not list it.
Exploit odds: 3.4% in the next 30 days (EPSS).
Severity: 7.5 HIGH (CVSS).
Fix: a patch or advisory is linked.

Details

Published: 2016-02-19 19:59 UTC
Last modified: 2026-06-17 00:41 UTC
Exploit probability: 3.4% · EPSS, next 30 days
Weakness: CWE-264
Record status: Modified

Affected

Cisco Asr 5000 Series Software 16.5.2
Cisco Asr 5000 Series Software 17.7.0
Cisco Asr 5000 Series Software 18.4.0
Cisco Asr 5000 Series Software 19.0.1
Cisco Asr 5000 Series Software 19.3.0
Cisco Asr 5000 Series Software 20.0.0

Attack profile CVSS 3.0 · 7.5

Attack vector: Network
Complexity: High
Privileges needed: Low
User interaction: None
Scope: Unchanged
Confidentiality: High
Integrity: High
Availability: High

Raw vector

CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Is it in your code?

Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.

Read https://cve-list.com/agent/cve/CVE-2016-1335.md and follow it. Check whether this project is affected by CVE-2016-1335. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

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Fix and advisories

References

NVD record · CVE.org record