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Vulnerability Database · Debian · Package report

mbedtls: vulnerability history, versions and safety

mbedtls is a package in the Debian ecosystem. Vulert records 7 vulnerabilities for it across 23 releases, from Aug 2021 to Sep 2026. Each vulnerability names the versions it affects, the fixed version to move to, and a workaround where no fix has been published.

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7 vulnerabilities recorded U7
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2 with no fix published

No patched version yet — these are the ones to plan around.

See the unfixed vulnerabilities →
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1 in the last 12 months

Most recent disclosure 24 Sep 2026.

See the disclosure history →
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0 malicious-package vulnerabilities

No published version shipped hostile code.

See all mbedtls vulnerabilities

Vulert verdict on mbedtls i

Updated on 23 Oct 2026

Careful: 2 of the 7 vulnerabilities Vulert records for this package have no fix yet. Plan around those, or apply the workaround listed for each. The rest have a fixed version to move to.

Long-term outlook: usable, but needs attention 7 vulnerabilities on record across 5 years, 1 in the last year.

What to do: Plan around the 2 vulnerabilities with no published fix: each lists the affected range and any workaround that reduces exposure. No fix yet: Vulert alerts you the moment one is published. Monitor it with Vulert →

  • Vulnerabilities on record 7 over 5 years · 1 in the last year i
  • Latest disclosure 24 Sep 2026 i
  • Highest CVSS 9.8 i
  • With no published fix 2 i

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01 Versions

Which versions are affected

Every version Vulert holds for mbedtls, 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 23 of 23 versions on record. Severity counts are the vulnerabilities recorded against that exact release.

02 Disclosure history

How often vulnerabilities are recorded

  • 2021 2
  • 2022 3
  • 2024 1
  • 2026 1

Counted by the year Vulert recorded each vulnerability — the same date the table below shows as disclosed. 1 of the 7 were recorded in the last 12 months.

03 Vulnerabilities

Recorded vulnerabilities for mbedtls

The 5 most severe of 7 vulnerabilities recorded for this package

Search all 7 in the database →
Vulnerability Severity Fixed version ↓ Disclosed ↓
Heap-Based Buffer Overflow in Mbed TLS - CVE-2022-46393 9.8 critical 2.28.2-1 15 Dec 2022
Mbed TLS X.509 Certificate Verification Flaw - CVE-2020-36477 5.9 medium 2.28.0-0.3 23 Aug 2021
Critical Entropy Source Vulnerability in Mbed TLS: TLS 1.3 Stream Manipulation 2.9 low No fix published 24 Sep 2026
Mbed TLS Vulnerability: X.509 Certificate Verification Flaw N/A unrated 2.28.0-0.3 23 Aug 2021
Heap-Based Buffer Over-Read Vulnerability in Mbed TLS N/A unrated 2.28.1-1 15 Jul 2022

Vulnerability wrong, a fix missing, or a package we should cover? Report it and we will fix the record. Report Vulnerability Provide Feedback

Updated: 23/Oct/2026 · Vulnerabilities in our DB: 524315

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Questions

About mbedtls

Is mbedtls safe to use?

Vulert records 7 vulnerabilities for mbedtls in Debian: 0 critical, 0 high, 0 medium and 0 low, plus 7 not yet rated. 2 of them have no published fix yet, so those are the ones to avoid or mitigate.

How many vulnerabilities does mbedtls have?

7 vulnerabilities are recorded for mbedtls in the Debian ecosystem: 0 critical, 0 high, 0 medium and 0 low, plus 7 not yet rated. The ledger on this page lists the same counts next to the date of the most recent disclosure.

How often are new mbedtls vulnerabilities disclosed?

1 vulnerability was recorded for mbedtls in the last 12 months, and the oldest entry in this database dates to 23 Aug 2021. Recency matters more than a lifetime total: it shows how actively new issues are being disclosed for the package you are considering.

Which versions of mbedtls are affected?

Each vulnerability on this page lists the affected version range and the fixed version to move to. Open the vulnerability for the version you actually run — fixes are specific to a release line, not to the package as a whole.

How do I monitor mbedtls for upcoming vulnerabilities?

Upload the manifest or SBOM for your application at vulert.com/scanner and Vulert keeps checking the mbedtls version you actually run against new disclosures, then alerts you when one affects it. There is no installation and no source-code access required.