NVD / CVE Program· CNA cisco

CVE-2022-20690: Multiple vulnerabilities in the Cisco Discovery Protocol functionality of Cisco ATA 190 Series Analog Telephone Adapter firmware could allow

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: 0.77% (FIRST EPSS); higher than 55.6% of all records.
Someone on the same network segment can trigger it. No account or password is required. No user action is required. No special conditions are required; it is repeatable.
According to the record, no fixed version is available yet.
Severity is disputed: the assigning authority (CNA) scores it 5.3, NVD 8.8.
Mentioned 1 time 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

Multiple vulnerabilities in the Cisco Discovery Protocol functionality of Cisco ATA 190 Series Analog Telephone Adapter firmware could allow an unauthenticated, adjacent attacker to cause Cisco Discovery Protocol memory corruption on an affected device. These vulnerabilities are due to missing length validation checks when processing Cisco Discovery Protocol messages. An attacker could exploit these vulnerabilities by sending a malicious Cisco Discovery Protocol packet to an affected device. A successful exploit could allow the attacker to cause an out-of-bounds read of the valid Cisco Discovery Protocol packet data, which could allow the attacker to cause corruption in the internal Cisco Discovery Protocol database of the affected device.

HighCVSS 8.8 · v3.1—No exploit No fix recorded

Pre-auth

BDU:2022-06586

Published: Dec 12, 2022
Updated: Jun 17, 2026
EPSS: 0.7% · 55th percentile
CWE: CWE-130

Report tools

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Action score

Monitor

Low priority for now.

CVSS: 35 / 40 · 8.8 / 10
CISA KEV: 0 / 30 · Not listed
EPSS: 0 / 30 · 0.7%

CNA vs NVD score

NVD: 8.8
CNA · cisco: 5.3; 3.5 point gap

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

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

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

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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	ata 190 firmware	cpe:2.3:o:cisco:ata_190_firmware
cisco	ata 190	cpe:2.3:h:cisco:ata_190
cisco	ata 191 firmware	cpe:2.3:o:cisco:ata_191_firmware
cisco	ata 191	cpe:2.3:h:cisco:ata_191
cisco	ata 192 firmware	cpe:2.3:o:cisco:ata_192_firmware
cisco	ata 192	cpe:2.3:h:cisco:ata_192

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

cisco ata 190 firmwareall versions
cisco ata 191 firmwarebefore 11.2.2
cisco ata 191 firmwarebefore 12.0.1
cisco ata 191 firmware12.0.1
cisco ata 192 firmwarebefore 11.2.2

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 Analog Telephone Adaptor (ATA) Software
- 1.2.1, 1.2.2 SR1, 1.2.2, 1.2.2 SR2, 11.1.0 MSR4, 11.1.0, 11.1.0 MSR1, 11.1.0 MSR2, 11.1.0 MSR3, 1.1.0, 1.1.1, 1.1.2 … (+6)affected

Same product

cisco: all records

Other highest-scoring records for the same primary product.

CVE-2021-34710Cisco ATA 190 Series Analog Telephone Adapter Software Vulnerabilities
36Monitor
CVE-2022-20689Multiple vulnerabilities in the Cisco Discovery Protocol functionality of Cisco ATA 190 Series Analog Telephone Adapter firmware could allow
35Monitor
CVE-2021-34735Cisco ATA 190 Series Analog Telephone Adapter Software Vulnerabilities
31Monitor

Published before and after this one in the same product

← EarlierCVE-2022-20687Dec 12, 2022 · Multiple vulnerabilities in the Link Layer Discovery Protocol (LLDP) functionality of Cisco ATA 190 Series Analog Telephone Adapter firmware
21Monitor
← EarlierCVE-2022-20688Dec 12, 2022 · A vulnerability in the Cisco Discovery Protocol functionality of Cisco ATA 190 Series Analog Telephone Adapter firmware could allow an unaut
21Monitor
Later →CVE-2022-20691Dec 12, 2022 · A vulnerability in the Cisco Discovery Protocol functionality of Cisco ATA 190 Series Adaptive Telephone Adapter firmware could allow an una
26Monitor

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.

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Bug bounty scope

No known public program.

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