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No exploitation reportedFix available

CVE-2019-16910

No exploitation reported by the sources we read.

  • Published2019-09-26

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

Arm Mbed TLS before 2.19.0 and Arm Mbed Crypto before 2.0.0, when deterministic ECDSA is enabled, use an RNG with insufficient entropy for blinding, which might allow an attacker to recover a private key via side-channel attacks if a victim signs the same message many times. (For Mbed TLS, the fix is also available in versions 2.7.12 and 2.16.3.)

Timeline

dates in UTC
  1. 2019-09-2613:15CVE publishedNVD

Versions per branch

NVD
Fedoraproject fedora
BranchAffectedFixed in
29.x= 29no fix published
30.x= 30no fix published
31.x= 31no fix published
Arm mbed tls
BranchAffectedFixed in
2.x≥ 2.8.0, < 2.16.32.16.3
2.7< 2.7.122.7.12
Arm mbed crypto
BranchAffectedFixed in
2.0< 2.0.02.0.0

2 more products in the sources.

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • mbedtlsUbuntu:Pro:18.04:LTSall versions · no fixed version listed
  • mbedtlsUbuntu:16.04:LTSall versions · no fixed version listed
  • mbedtlsMageia:7all versions · fixed in 2.16.4-1.mga7
  • mbedtlsDebian:14all versions · fixed in 2.16.3-1
  • mbedtlsDebian:13all versions · fixed in 2.16.3-1
  • mbedtlsDebian:12all versions · fixed in 2.16.3-1
  • mbedtlsDebian:10all versions · fixed in 2.16.9-0~deb10u1
  • mbedtlsCleanStartall versions · fixed in 2.16.3-r0and 1 other package

15 more package ranges on OSV.dev

Full record on NVD

Fix

Advisories and patches

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof of concept
Metasploit modules
none listed
Metasploit Framework

Sources

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N
Published
2019-09-26
Last Modified
2026-06-17
NVD status
Modified
GitHub Advisory
GHSA-jg4p-c829-4q39

Frequently asked questions

What is CVE-2019-16910?

Arm Mbed TLS before 2.19.0 and Arm Mbed Crypto before 2.0.0, when deterministic ECDSA is enabled, use an RNG with insufficient entropy for blinding, which might allow an attacker to recover a private key via side-channel attacks if a victim signs the same message many times. (For Mbed TLS, the fix is also available in versions 2.7.12 and 2.16.3.)

Is CVE-2019-16910 actively exploited?

Active exploitation of CVE-2019-16910 has not been confirmed. Its EPSS score was 1.8% on 2026-11-08, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2019-16910?

CVE-2019-16910 has a CVSS v3 base score of 5.3 (MEDIUM severity), with vector string CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N.

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Sources for this record