CVE-2006-0898: Crypt::CBC Perl module 2.16 and earlier, when running in RandomIV mode, uses an initialization vector (IV)...

Security readout for executives and security teams

CVE-2006-0898 is a weak-encryption issue in the Perl Crypt::CBC module. Versions 2.16 and earlier can use an initialization vector that is too short for some ciphers, reducing confidentiality protection for data encrypted by affected applications. Exposure is likely limited to systems running Perl applications that use Crypt::CBC 2.16 or earlier in RandomIV mode with ciphers needing IVs larger than 8 bytes. Generic presence of Perl is not enough evidence of exposure. Treat this as a targeted cryptography hygiene issue. Prioritize systems that encrypt regulated, customer, credential, or long-lived business data using older Perl stacks. Mitigation focus: Inventory Perl applications and dependencies for Crypt::CBC usage.; Upgrade Crypt::CBC or distribution packages using the cited vendor advisories.; Check whether RandomIV mode is used with Rijndael or other larger-block ciphers..

Prepared

Jun 29, 2026, 14:02 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.