DEBIANVERIFIED
DSA-6573-1 firefox-esr - security update
Checked 30 Oct 2026. BlackTree preserves the last verified facts if a later source check is temporarily unavailable.
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DEBIAN SECURITY ADVISORYDEBIANVERIFIED
PUBLISHER UPDATE · DSA-6573-1
DSA-6573-1 release notes and known issues
DSA-6573-1 firefox-esr - security update
Scope: Debian. This update record adds version, fix and known-issue context. Its publication date is not a lifecycle boundary.
Summary
This update blocks compromised intermediate certificates issued by the eMudhra CA. Most users will have these certs already blocked by the OneCRL feature provided by Firefox. This update blocks the certificates also for installations which have RemoteSettings disabled or which are unable to connect to the revocation backend service due to network constraints. https://security-tracker.debian.org/tracker/DSA-6573-1
Improvements and security content
- This update blocks compromised intermediate certificates issued by the eMudhra CA. Most users will have these certs already blocked by the OneCRL feature provided by Firefox. This update blocks the certificates also for installations which have RemoteSettings disabled or which are unable to connect to the revocation backend service due to network constraints. https://security-tracker.debian.org/tracker/DSA-6573-1
Known issues
Publisher statementNot stated. The verified publisher record does not contain a known-issues statement.
Affected products and versions
Products
- Debian
Affected versions
- See the official publisher source for applicability.
Fixed versions or updates
- No fixed version is stated in this record.
Recommended action
Review the official publisher document before deployment.
Lifecycle connections
These links connect the publisher update to related Lifecycle records without treating the update publication date as an end-of-support date.