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CVE-2022-20655· NVD / CVE Program· CNA cisco

A vulnerability in the implementation of the CLI on a device that is running ConfD could allow an authenticated, local attacker to perform a

A vulnerability in the implementation of the CLI on a device that is running ConfD could allow an authenticated, local attacker to perform a command injection attack. The vulnerability is due to insufficient validation of a process argument on an affected device. An attacker could exploit this vulnerability by injecting commands during the execution of this process. A successful exploit could allow the attacker to execute arbitrary commands on the underlying operating system with the privilege level of ConfD, which is commonly root.

HighCVSS 8.8 · v3.1—No exploit No fix recorded
Published
Nov 15, 2024
Updated
Jun 17, 2026
EPSS
0.8% · 56th percentile
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Action score

35

Monitor

Low priority for now.

CVSS
35 / 40 · 8.8 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.8%

CISA SSVC decision

Exploitation
none
Automatable
no
Technical impact
total

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
—
CNA · cisco
8.8
NVD has not scored this yet; the score shown is the CNA’s.

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Affected systems

VendorProduct
ciscoios xr software
ciscovirtual topology system
cisconetwork services orchestrator
ciscoenterprise nfv infrastructure software
ciscocatalyst sd-wan manager
ciscoios xe catalyst sd-wan
ciscosd-wan vedge router
ciscocarrier packet transport

Versions reported by the vendor

Affected version ranges reported by the assigning authority (cisco). Independent of NVD's CPE analysis and usually ahead of it.

  • Cisco Cisco Carrier Packet Transport

    • 3.5, 3.1, 3.2, 2.5, 2.0, 9.2.2, 1.4.0, 1.0, 1.1, 1.2, 2.1.0, 2.3.0 … (+28)affected
  • Cisco Cisco Catalyst SD-WAN

    • N/Aaffected
  • Cisco Cisco Catalyst SD-WAN Manager

    • N/Aaffected
  • Cisco Cisco Enterprise NFV Infrastructure Software

    • N/Aaffected
  • Cisco Cisco IOS XE Catalyst SD-WAN

    • N/Aaffected
  • Cisco Cisco IOS XR Software

    • N/Aaffected
  • Cisco Cisco Network Services Orchestrator

    • N/Aaffected
  • Cisco Cisco SD-WAN vEdge Router

    • N/Aaffected
  • Cisco Cisco Ultra Gateway Platform

    • N/Aaffected
  • Cisco Cisco Virtual Topology System (VTS)

    • N/Aaffected

Other highest-scoring records for the same primary product.

  • CVE-2026-20279Cisco IOS XR Software Security Hardening Release: September 2026
    39Monitor
  • CVE-2026-20278Cisco IOS XR Software Security Hardening Release: September 2026
    35Monitor
  • CVE-2026-20275Cisco IOS XR Software Security Hardening Release: September 2026
    35Monitor
  • CVE-2026-20277Cisco IOS XR Software Security Hardening Release: September 2026
    32Monitor
  • CVE-2025-20340Cisco IOS XR Address Resolution Protocol Broadcast Storm Vulnerability
    29Monitor
  • CVE-2024-20318A vulnerability in the Layer 2 Ethernet services of Cisco IOS XR Software could allow an unauthenticated, adjacent attacker to cause the lin
    29Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

No fix version is recorded for this entry. Check the references for vendor advisories.

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Someone with local access to the system can trigger it.
  • A low-privileged account is enough.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
high · data can be read
Integrity
high · data or configuration can be modified
Availability
high · the service can be disrupted

Impact can extend beyond the vulnerable component (scope changes).

Attack vector
Local
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Changed
Confidentiality impact
High
Integrity impact
High
Availability impact
High

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

nvd-secondary

Root cause

User input is inserted as text into a shell command. The shell may interpret special characters in the input as part of the command.

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

Vulnerable

ts
const host = req.body.host;exec("ping -c 1 " + host, onResult);

Fixed

ts
const host = req.body.host;if (!/^[a-z0-9.-]{1,253}$/i.test(host)) return res.sendStatus(400);execFile("ping", ["-c", "1", host], onResult);

Noroxi analysis

No Noroxi analysis for this record yet

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Change log

No changes recorded on tracked fields yet. Score, KEV, exploit maturity and fix status changes appear here.

References

All records