Is CVE-2020-24753 actively exploited?

No active exploitation of CVE-2020-24753 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2020-24753 be exploited remotely?

Yes. CVE-2020-24753 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2020-24753?

CVE-2020-24753 has a CVSS score of 9.8 (CRITICAL).

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CRITICAL

CVE-2020-24753

CWE-755Published: September 17, 2020· Updated: Jun 17, 2026

9.8

CVSS v3.1

Official Description

A memory corruption vulnerability in Objective Open CBOR Run-time (oocborrt) in versions before 2020-08-12 could allow an attacker to execute code via crafted Concise Binary Object Representation (CBOR) input to the cbor2json decoder. An uncaught error while decoding CBOR Major Type 3 text strings leads to the use of an attacker-controllable uninitialized stack value. This can be used to modify memory, causing a crash or potentially exploitable heap corruption.

NVD Source

Technical Analysis

CVE-2020-24753 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.