Vulnerability Database · Debian · Package report
tzdata: vulnerability history, versions and safety
tzdata is a package in the Debian ecosystem. Vulert records 4 vulnerabilities for it across 71 releases, from Nov 2024 to Dec 2025. Each vulnerability names the versions it affects, the fixed version to move to, and a workaround where no fix has been published.
Every vulnerability has a patched version to move to.
No published version shipped hostile code.
Vulert verdict on tzdata i
Updated on 23 Oct 2026
Every vulnerability Vulert records for this package has a fix, and the newest was recorded 12 Dec 2025. Apply the fixes listed below and you are clear.
What to do: Move the affected dependencies to the fixed versions listed below, then keep the package monitored so the next vulnerability reaches you. Fix it, then keep watch: Vulert alerts you when a new vulnerability affects the version you run. Monitor it with Vulert →
- Vulnerabilities on record 4 over 1 year · 1 in the last year i
- Latest disclosure 12 Dec 2025 i
- Highest CVSS n/a i
- With no published fix 0 i
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01 Versions
Which versions are affected
Every version Vulert holds for tzdata, newest first, with the vulnerabilities that name it. A version with a count of zero has no recorded vulnerabilities; open a version to see the vulnerabilities it is exposed to.
Newest 71 of 71 versions on record. Severity counts are the vulnerabilities recorded against that exact release.
02 Disclosure history
How often vulnerabilities are recorded
Counted by the year Vulert recorded each vulnerability — the same date the table below shows as disclosed. 1 of the 4 were recorded in the last 12 months.
Other ways into the data
03 Vulnerabilities
Recorded vulnerabilities for tzdata
| Vulnerability | Severity | Fixed version ↓ | Disclosed ↓ |
|---|---|---|---|
| Critical Update Required: tzdata Package Vulnerability in Debian 11 | N/A unrated | 2024b-0+deb11u1 | 28 Nov 2024 |
| Critical Update Required: tzdata Package Vulnerability in Debian 11 | N/A unrated | 2025a-0+deb11u1 | 18 Mar 2025 |
| Critical Update Required: tzdata Package Vulnerability in Debian 11 | N/A unrated | 2025b-0+deb11u1 | 01 Apr 2025 |
| Critical Update for tzdata: New Timezone Database Vulnerability | N/A unrated | 2025b-0+deb11u2 | 12 Dec 2025 |
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Updated: 23/Oct/2026 · Vulnerabilities in our DB: 524315
