CVE-2020-24753

CRITICAL
9.8
CVSS Score
Published: September 17, 2020 at 06:00 PM UTC
Updated: June 17, 2026 at 03:06 AM UTC
1 product affected across 1 vendorObjective Open Cbor Run Time

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Severity
CRITICAL9.8
Exploit prediction
EPSS 3%

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 2020-08-12
Affected range stops below 2020-08-12, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (2)

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-755CWE-787CWE-908

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