CVE-2022-20689
No known exploitation. EPSS puts it in the 52nd percentile. Fixed in 11.2.2.
What to do
Find your product and version, then upgrade to the build on the right.
- Cisco Analog Telephone Adaptor SoftwareAffected: 1.2.1Upgrade to: not statedAffected: 1.2.2 SR1Upgrade to: not statedAffected: 1.2.2Upgrade to: not statedAffected: 1.2.2 SR2Upgrade to: not stated + 14 more branchesStated by: CVE record
- Cisco Ata 191 FirmwareAffected: < 11.2.2Upgrade to: 11.2.2Stated by: NVD
- Cisco Ata 192 FirmwareAffected: < 11.2.2Upgrade to: 11.2.2Stated by: NVD
- Cisco Systems Inc. Analog Telephone Adapter 191Affected: до 12.0(1)SR5Upgrade to: not statedStated by: BDU
- Cisco Systems Inc. Multiplatform Analog Telephone Adapter 191Affected: до 11.2.2Upgrade to: not statedStated by: BDU
Versions as the sources state them. 1 more product has version data. Full version matrix after sign-in
What it is
From the CVE record
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.
In plain language
No plain-language summary for this CVE yet.
Exploitation
Where each signal puts this CVE on the scale from published to confirmed exploited.
- CISA KEV
Not in the catalog. CISA has not confirmed exploitation.
- Public exploits
No public exploit or proof of concept found in the sources we track.
- EPSS
0.7% chance of exploitation activity in the next 30 days, which ranks it in the 52nd percentile of scored CVEs.
Exploit Prediction Scoring System, FIRST.org. A probability, not a confirmation.
Lifecycle
5 events over 1296 days, from the signal feeds we watch.
- OpenVAS check added
- Patch availablerecord updated
- Publishedweakness classified
Affected products
- Analog Telephone Adapter (ATA) 191Networking Infrastructure
- Multiplatform Analog Telephone Adapter (ATA) 191Networking Infrastructure
- Multiplatform Analog Telephone Adapter (ATA) 192Networking Infrastructure
- Cisco Analog Telephone Adaptor (ATA) SoftwareNetworking Infrastructure
- ata 190 firmwareNetworking Infrastructure
- ata 191 firmwareNetworking Infrastructure
- ata 192 firmwareNetworking Infrastructure
Technical detail
CVSS 3.1 vector
Open in the CVSS calculatorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Scored 5.3 by NVD.
How it is reached
- Attack Vector NetworkExploitable remotely over the network without any special conditions
- Attack Complexity LowNo special conditions — the attack can be reliably reproduced
- Privileges Required NoneNo authentication required — anyone can exploit this
- User Interaction NoneNo user interaction needed — fully automated exploitation
Scope
- Scope UnchangedImpact is limited to the vulnerable component itself
Impact if exploited
- Confidentiality NoneNo confidentiality impact
- Integrity NoneNo integrity impact
- Availability LowReduced performance or intermittent disruption of service
Weaknesses
Sources
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