NVD / CVE Program· CNA cisco

CVE-2022-20655: A vulnerability in the implementation of the CLI on a device that is running ConfD could allow an authenticated, local attacker to perform a

Noroxi assessment

Priority: Monitor (action score 35/100)

The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
Probability of exploitation in the next 30 days: 0.82% (FIRST EPSS); higher than 57.5% of all records.
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.
According to the record, no fixed version is available yet.
Mentioned 3 times in Turkish national cyber security advisories (siberguvenlik.gov.tr).

Low priority for now. Update when a fix is released; follow the vendor's advisory.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

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

BDU:2022-02495

Published: Nov 15, 2024
Updated: Jun 17, 2026
EPSS: 0.8% · 57th percentile
CWE: CWE-78

Report tools

JSON

Action score

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.

Get told when this record changes

Not in KEV: no record of exploitation in the wild
No public exploit code on record
No fixed version yet

If any of these changes, we'll tell you in the daily email digest.

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

Vendor	Product	CPE
cisco	ios xr software	cpe:2.3:o:cisco:ios_xr_software
cisco	virtual topology system	cpe:2.3:a:cisco:virtual_topology_system
cisco	network services orchestrator	cpe:2.3:a:cisco:network_services_orchestrator
cisco	enterprise nfv infrastructure software	cpe:2.3:a:cisco:enterprise_nfv_infrastructure_software
cisco	catalyst sd-wan manager	cpe:2.3:a:cisco:catalyst_sd-wan_manager
cisco	ios xe catalyst sd-wan	cpe:2.3:o:cisco:ios_xe_catalyst_sd-wan
cisco	sd-wan vedge router	cpe:2.3:a:cisco:sd-wan_vedge_router
cisco	carrier packet transport	cpe:2.3:a:cisco:carrier_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

Same product

cisco: all records

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

Published before and after this one in the same product

← EarlierCVE-2024-20315Mar 13, 2024 · A vulnerability in the access control list (ACL) processing on MPLS interfaces in the ingress direction of Cisco IOS XR Software could allow
23Monitor
← EarlierCVE-2024-20318Mar 13, 2024 · A vulnerability in the Layer 2 Ethernet services of Cisco IOS XR Software could allow an unauthenticated, adjacent attacker to cause the lin
29Monitor
Later →CVE-2022-20845Nov 15, 2024 · Cisco Network Convergence System 4000 Series TL1 Denial of Service Vulnerability
24Monitor

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.

No history yet (it accumulates with the daily EPSS job).

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.

Credits

All researchers

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).

National notice (Türkiye Cybersecurity Directorate / USOM)

Official security notices citing this record; remediation advice is on the agency's page.

TR-22-0082 · Jan 25, 2022(Cisco Güvenlik Zafiyeti)
TR-22-0071 · Jan 21, 2022(Cisco Güvenlik Güncellemesi)
TR-22-0065 · Jan 20, 2022(Cisco Güvenlik Zafiyeti)

All national notices →

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

Weakness class (CWE)

CWE-78 · Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

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.

The bug in code

The whole CWE-78 class

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

Vulnerable

1const host = req.body.host;
2exec("ping -c 1 " + host, onResult);

Fixed

1const host = req.body.host;
2if (!/^[a-z0-9.-]{1,253}$/i.test(host)) return res.sendStatus(400);
3execFile("ping", ["-c", "1", host], onResult);

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

Attack patterns (CAPEC)

ATT&CK techniques

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Change log

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

References

sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-cli-cmdinj-4MttWZPB

Show all references (1 more)

sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-confdcli-cmdinj-wybQDSSh

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records