Today I got a server email with the same error, I got before:
Mon Oct 13 11:15:13 2025 -> ClamAV update process started at Mon Oct 13 11:15:13 2025 Mon Oct 13 11:15:13 2025 -> Current working dir is /var/lib/clamav/ Mon Oct 13 11:15:13 2025 -> Querying current.cvd.clamav.net Mon Oct 13 11:15:13 2025 -> TTL: 1800 Mon Oct 13 11:15:13 2025 -> fc_dns_query_update_info: Software version from DNS: 1.0.9 Mon Oct 13 11:15:13 2025 -> WARNING: Your ClamAV installation is OUTDATED!
Mon Oct 13 11:15:13 2025 -> WARNING: Local version: 0.103.11 Recommended version: 1.0.9 Mon Oct 13 11:15:13 2025 -> DON'T PANIC! Read https://docs.clamav.net/manual/Installing.html
Mon Oct 13 11:15:13 2025 -> WARNING: Cool-down expired, ok to try again.
Mon Oct 13 11:15:13 2025 -> Saved freshclam.dat Mon Oct 13 11:15:13 2025 -> Current working dir is /var/lib/clamav/ Mon Oct 13 11:15:13 2025 -> check_for_new_database_version: Local copy of daily found: daily.cld.
Mon Oct 13 11:15:13 2025 -> query_remote_database_version: daily.cvd version from DNS: 27790 Mon Oct 13 11:15:13 2025 -> daily database available for update (local version: 27778, remote version: 27790) Mon Oct 13 11:15:16 2025 -> Retrieving https://database.clamav.net/daily-27779.cdiff
Mon Oct 13 11:15:16 2025 -> downloadFile: Download source: https://database.clamav.net/daily-27779.cdiff
Mon Oct 13 11:15:16 2025 -> downloadFile: Download destination: ./clamav-ca226d2d79e153cfe4660d919711e1d6.tmp
Mon Oct 13 11:15:18 2025 -> Saved freshclam.dat Mon Oct 13 11:15:18 2025 -> WARNING: downloadPatch: Can't download daily-27779.cdiff from https://database.clamav.net/daily-27779.cdiff
Mon Oct 13 11:15:18 2025 -> WARNING: Incremental update failed, trying to download daily.cvd Mon Oct 13 11:15:18 2025 -> Retrieving https://database.clamav.net/daily.cvd
Mon Oct 13 11:15:18 2025 -> downloadFile: Download source: https://database.clamav.net/daily.cvd
Mon Oct 13 11:15:18 2025 -> downloadFile: Download destination: /var/lib/clamav/tmp.1f68a56008/clamav-4f3f63bd9b96811bc5b90b0f439e0684.tmp
Mon Oct 13 11:15:18 2025 -> Saved freshclam.dat Mon Oct 13 11:15:18 2025 -> WARNING: Can't download daily.cvd from https://database.clamav.net/daily.cvd
Mon Oct 13 11:15:18 2025 -> WARNING: FreshClam received error code 403 from the ClamAV Content Delivery Network (CDN).
Mon Oct 13 11:15:18 2025 -> This could mean several things:
Mon Oct 13 11:15:18 2025 -> 1. You are running an out-of-date version of ClamAV / FreshClam.
Mon Oct 13 11:15:18 2025 -> Ensure you are the most updated version by visiting https://www.clamav.net/downloads
Mon Oct 13 11:15:18 2025 -> 2. Your network is explicitly denied by the FreshClam CDN.
Mon Oct 13 11:15:18 2025 -> In order to rectify this please check that you are:
Mon Oct 13 11:15:18 2025 -> a. Running an up-to-date version of FreshClam
Mon Oct 13 11:15:18 2025 -> b. Running FreshClam no more than once an hour
Mon Oct 13 11:15:18 2025 -> c. If you have checked (a) and (b), please open a ticket at
Mon Oct 13 11:15:18 2025 -> https://github.com/Cisco-Talos/clamav/issues
Mon Oct 13 11:15:18 2025 -> and we will investigate why your network is blocked.
Mon Oct 13 11:15:18 2025 -> WARNING: You are on cool-down until after: 2025-10-14 11:15:18 Mon Oct 13 11:15:18 2025 -> ERROR: Database update process failed: Forbidden; Blocked by CDN Mon Oct 13 11:15:18 2025 -> ERROR: Update failed.
Mon Oct 13 11:15:18 2025 -> WARNING: FreshClam was forbidden from downloading a database.
Mon Oct 13 11:15:18 2025 -> WARNING: This is fatal. Retrying later won't help. Exiting now.
The new installation shows still an error with "Your ClamAV installation is OUTDATED!"
Best regards
Martin