How severe is CVE-2020-24490?

CVE-2020-24490 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over an adjacent network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2020-24490 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (81st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-24490?

CVE-2020-24490 affects Bluez. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-24490?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2020-24490 published?

CVE-2020-24490 was published on 2021-02-02 and last updated on 2026-06-17.

CVE-2020-24490

CVE-2020-24490 is a medium-severity vulnerability in Bluez with a CVSS 3.x base score of 6.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
CVSS v2: 3.3
EPSS exploit prediction: 2% (81st percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Bluez
Published: 2021-02-02
Last modified: 2026-06-17

Description

Improper buffer restrictions in BlueZ may allow an unauthenticated user to potentially enable denial of service via adjacent access. This affects all Linux kernel versions that support BlueZ.

Frequently asked questions

What is CVE-2020-24490?: Improper buffer restrictions in BlueZ may allow an unauthenticated user to potentially enable denial of service via adjacent access. This affects all Linux kernel versions that support BlueZ.
How severe is CVE-2020-24490?: CVE-2020-24490 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over an adjacent network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2020-24490 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (81st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-24490?: CVE-2020-24490 affects Bluez. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-24490?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2020-24490 published?: CVE-2020-24490 was published on 2021-02-02 and last updated on 2026-06-17.

References

https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00435.html

Affected products (1)

cpe:2.3:a:bluez:bluez:-:*:*:*:*:*:*:*

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