Debian is known for its stability. As they require rigorous testing, packages are known to take a long time to become Stable, comparing to other distributions.

In light of the extended review duration, do the security patches of general (non-core) packages have to survive a long wait before entering Stable?

The possibility of the creation of zero-day exploits (by referencing the latest version of a software) during the testing period to compromise an older version in the stable repository seems worrying.

Disregarding the effect of additional software such as SELinux, does the lengthened period impose a security disadvantage, comparing to other distributions?

closed as primarily opinion-based by Jeff Schaller, GAD3R, Rui F Ribeiro, Stephen Harris, jimmij Mar 26 at 13:04

Many good questions generate some degree of opinion based on expert experience, but answers to this question will tend to be almost entirely based on opinions, rather than facts, references, or specific expertise. If this question can be reworded to fit the rules in the help center, please edit the question.

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    What's long to you might be short to someone else; besides, the answer may vary depending on variation situations. Can you narrow your question down considerably? – Jeff Schaller Mar 25 at 22:55

Security fixes enter Debian stable as soon as possible, given a number of constraints (in particular, coordinated disclosure in some cases, and the time it takes to build updated packages). They don’t undergo the usual unstable → testing → stable migration.

Look at the latest Firefox security update: it was announced by Mozilla on March 22, and made available in Debian stable on March 24.

This does mean that there are sometimes regressions, which are fixed in a follow-up update as soon as possible.

See the Debian security page for details of the processes and timelines.

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