Is CVE-2020-24753 in the CISA KEV catalog?

No. CVE-2020-24753 is not currently on the CISA Known Exploited Vulnerabilities list.

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

CVE-2020-24753 has a CVSS v3 base score of 9.8 (CRITICAL).

What is the EPSS score for CVE-2020-24753?

CVE-2020-24753 has an EPSS score of 2.64% (84th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2020-24753?

Upgrade objective open cbor run-time to 2020-08-12 or later.

CVE & CISA-KEV Catalog

CVE-2020-24753

CRITICALEPSS 84th pctl

9.8

CVSS v3

NVD

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.

CWE-755 CWE-787Out-of-bounds Write CWE-908

How to fix

Remediation Available

objective open cbor run-timeNVD

Affected:< 2020-08-12Fixed in:2020-08-12CVE-2020-24753derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploit Intelligence

2.64%probability of exploitation in 30 days

84thpercentile

Elevated risk: more likely to be exploited than 84% of all known CVEs.

References

Patch1

github.com

Exploit1

warcollar.com

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.