c5x firmware vulnerabilities and fixes

Recent CVEs affecting c5x firmware, with upgrade or downgrade steps. 7 tracked.

Also searched as: c5xfirmware.

c5x firmware has 7 tracked vulnerabilities, 3 critical. A fixed release or vendor patch exists for 7. Most recent: 2022-02-18. Highest priority: CVE-2022-21196 (score 62/100).

• CVE-2022-21800 MEDIUM 6.5 UPGRADE UPGRADE MMP: All versions prior to v1.0.3, PTP C-series: Device versions prior to v2.8.6.1, and PTMP C-series and A5x:
• CVE-2022-21215 CRITICAL 10.0 UPGRADE UPGRADE This vulnerability could allow an attacker to force the server to create and execute a web request granting ac
• CVE-2022-21196 CRITICAL 10.0 UPGRADE UPGRADE MMP: All versions prior to v1.0.3, PTP C-series: Device versions prior to v2.8.6.1, and PTMP C-series and A5x:
• CVE-2022-21176 HIGH 8.6 UPGRADE UPGRADE MMP: All versions prior to v1.0.3, PTP C-series: Device versions prior to v2.8.6.1, and PTMP C-series and A5x:
• CVE-2022-21143 HIGH 7.5 UPGRADE UPGRADE MMP: All versions prior to v1.0.3, PTP C-series: Device versions prior to v2.8.6.1, and PTMP C-series and A5x:
• CVE-2022-21141 CRITICAL 10.0 UPGRADE UPGRADE MMP: All versions prior to v1.0.3, PTP C-series: Device versions prior to v2.8.6.1, and PTMP C-series and A5x:
• CVE-2022-0138 HIGH 7.5 UPGRADE UPGRADE MMP: All versions prior to v1.0.3, PTP C-series: Device versions prior to v2.8.6.1, and PTMP C-series and A5x:

FAQ

How do I fix c5x firmware vulnerabilities?

Open the CVE for your version, check the affected range, then follow the listed action: upgrade to the fixed release, or downgrade or mitigate if no fix exists yet. Commands for each OS are shown on every CVE page.

Is c5x firmware being exploited right now?

None of the tracked c5x firmware CVEs are on the CISA Known Exploited Vulnerabilities list at the moment. This is checked every 20 minutes.

Which c5x firmware CVE should I patch first?

CVE-2022-21196 currently ranks highest (62/100): MMP: All versions prior to v1.0.3, PTP C-series: Device versions prior to v2.8.6.1, and PTMP C-series and A5x:.

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