Is CVE-2021-29937 actively exploited?

No active exploitation of CVE-2021-29937 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2021-29937 be exploited remotely?

Yes. CVE-2021-29937 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2021-29937?

CVE-2021-29937 has a CVSS score of 9.8 (CRITICAL).

HOME VULNERABILITIESCVE-2021-29937

CRITICAL

CVE-2021-29937

CWE-908Published: April 1, 2021· Updated: Jun 17, 2026

9.8

CVSS v3.1

Official Description

An issue was discovered in the telemetry crate through 2021-02-17 for Rust. There is a drop of uninitialized memory if a value.clone() call panics within misc::vec_with_size().

NVD Source

Technical Analysis

CVE-2021-29937 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.