Is CVE-2024-56557 in the CISA KEV catalog?

No. CVE-2024-56557 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2024-56557?

CVE-2024-56557 has a CVSS v3 base score of 5.5 (MEDIUM).

What is the EPSS score for CVE-2024-56557?

CVE-2024-56557 has an EPSS score of 0.24% (14th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2024-56557?

Upgrade linux on debian 12 to 6.1.123-1 or later. Fixes are available for 113 affected products.

CVE & CISA-KEV Catalog

CVE-2024-56557

MEDIUM

5.5

CVSS v3

NVD

Description

In the Linux kernel, the following vulnerability has been resolved: iio: adc: ad7923: Fix buffer overflow for tx_buf and ring_xfer The AD7923 was updated to support devices with 8 channels, but the size of tx_buf and ring_xfer was not increased accordingly, leading to a potential buffer overflow in ad7923_update_scan_mode().

CWE-120Classic Buffer Overflow

How to fix

Remediation Available

linuxDebian

Fixed in:6.1.123-1CVE-2024-56557

Fixed in:6.12.5-1CVE-2024-56557

linuxUbuntu

Fixed in:6.8.0-58.60USN-7449-1

linux-awsUbuntu

Fixed in:6.8.0-1027.29USN-7449-1

linux-aws-6.8Ubuntu

Fixed in:6.8.0-1027.29~22.04.1USN-7451-1

linux-azureUbuntu

Fixed in:6.8.0-1027.32USN-7449-1

linux-azure-6.8Ubuntu

Fixed in:6.8.0-1027.32~22.04.1USN-7449-1

linux-azure-nvidiaUbuntu

Fixed in:6.8.0-1014.15USN-7468-1

linux-gcpUbuntu

Fixed in:6.8.0-1028.30USN-7450-1

linux-gcp-6.8Ubuntu

Fixed in:6.8.0-1028.30~22.04.1USN-7452-1

linux-gkeUbuntu

Fixed in:6.8.0-1023.27USN-7450-1

linux-gkeopUbuntu

Fixed in:6.8.0-1010.12USN-7450-1

linux-hwe-6.11Ubuntu

Fixed in:6.11.0-21.21~24.04.1USN-7379-1

linux-hwe-6.8Ubuntu

Fixed in:6.8.0-58.60~22.04.1USN-7449-2

linux-ibmUbuntu

Fixed in:6.8.0-1024.24USN-7449-1

linux-image-6.11.0-1011-lowlatencyUbuntu

Fixed in:6.11.0-1011.12~24.04.1USN-7381-1

linux-image-6.11.0-1011-lowlatency-64kUbuntu

Fixed in:6.11.0-1011.12~24.04.1USN-7381-1

linux-image-6.11.0-1017-oemUbuntu

Fixed in:6.11.0-1017.17USN-7382-1

linux-image-6.11.0-21-genericUbuntu

Fixed in:6.11.0-21.21~24.04.1+1USN-7379-1

linux-image-6.11.0-21-generic-64kUbuntu

Fixed in:6.11.0-21.21~24.04.1+1USN-7379-1

linux-image-6.8.0-1010-gkeopUbuntu

Fixed in:6.8.0-1010.12USN-7450-1

linux-image-6.8.0-1014-azure-nvidiaUbuntu

Fixed in:6.8.0-1014.15USN-7468-1

linux-image-6.8.0-1023-gkeUbuntu

Fixed in:6.8.0-1023.27USN-7450-1

linux-image-6.8.0-1024-ibmUbuntu

Fixed in:6.8.0-1024.24USN-7449-1

linux-image-6.8.0-1024-oracleUbuntu

Fixed in:6.8.0-1024.25~22.04.1USN-7449-1

Fixed in:6.8.0-1024.25USN-7449-1

linux-image-6.8.0-1024-oracle-64kUbuntu

Fixed in:6.8.0-1024.25~22.04.1USN-7449-1

Fixed in:6.8.0-1024.25USN-7449-1

linux-image-6.8.0-1026-nvidiaUbuntu

Fixed in:6.8.0-1026.29~22.04.1USN-7449-1

Fixed in:6.8.0-1026.29USN-7449-1

linux-image-6.8.0-1026-nvidia-64kUbuntu

Fixed in:6.8.0-1026.29~22.04.1USN-7449-1

Fixed in:6.8.0-1026.29USN-7449-1

linux-image-6.8.0-1026-nvidia-lowlatencyUbuntu

Fixed in:6.8.0-1026.29.1USN-7449-1

linux-image-6.8.0-1026-nvidia-lowlatency-64kUbuntu

Fixed in:6.8.0-1026.29.1USN-7449-1

linux-image-6.8.0-1026-oemUbuntu

Fixed in:6.8.0-1026.26USN-7449-1

linux-image-6.8.0-1027-awsUbuntu

Fixed in:6.8.0-1027.29~22.04.1USN-7451-1

Fixed in:6.8.0-1027.29USN-7449-1

linux-image-6.8.0-1027-azureUbuntu

Fixed in:6.8.0-1027.32~22.04.1USN-7449-1

Fixed in:6.8.0-1027.32USN-7449-1

linux-image-6.8.0-1027-azure-fdeUbuntu

Fixed in:6.8.0-1027.32~22.04.1USN-7449-1

Fixed in:6.8.0-1027.32USN-7449-1

linux-image-6.8.0-1028-gcpUbuntu

Fixed in:6.8.0-1028.30~22.04.1USN-7452-1

Fixed in:6.8.0-1028.30USN-7450-1

linux-image-6.8.0-1028-gcp-64kUbuntu

Fixed in:6.8.0-1028.30~22.04.1USN-7452-1

Fixed in:6.8.0-1028.30USN-7450-1

linux-image-6.8.0-1028-raspiUbuntu

Fixed in:6.8.0-1028.32USN-7524-1

linux-image-6.8.0-2023-raspi-realtimeUbuntu

Fixed in:6.8.0-2023.24USN-7523-1

linux-image-6.8.0-58-genericUbuntu

Fixed in:6.8.0-58.60~22.04.1USN-7449-2

Fixed in:6.8.0-58.60+1USN-7449-1

linux-image-6.8.0-58-generic-64kUbuntu

Fixed in:6.8.0-58.60~22.04.1USN-7449-2

Fixed in:6.8.0-58.60+1USN-7449-1

linux-image-6.8.0-58-lowlatencyUbuntu

Fixed in:6.8.0-58.60.1~22.04.1USN-7449-1

Fixed in:6.8.0-58.60.1USN-7449-1

linux-image-6.8.0-58-lowlatency-64kUbuntu

Fixed in:6.8.0-58.60.1~22.04.1USN-7449-1

Fixed in:6.8.0-58.60.1USN-7449-1

linux-image-6.8.1-1020-realtimeUbuntu

Fixed in:6.8.1-1020.21USN-7453-1

linux-image-awsUbuntu

Fixed in:6.8.0-1027.29~22.04.1USN-7451-1

Fixed in:6.8.0-1027.29USN-7449-1

linux-image-aws-lts-24.04Ubuntu

Fixed in:6.8.0-1027.29USN-7449-1

linux-image-azureUbuntu

Fixed in:6.8.0-1027.32~22.04.1USN-7449-1

linux-image-azure-fdeUbuntu

Fixed in:6.8.0-1027.32~22.04.1USN-7449-1

linux-image-azure-fde-lts-24.04Ubuntu

Fixed in:6.8.0-1027.32USN-7449-1

linux-image-azure-lts-24.04Ubuntu

Fixed in:6.8.0-1027.32USN-7449-1

linux-image-azure-nvidiaUbuntu

Fixed in:6.8.0-1014.15USN-7468-1

linux-image-gcpUbuntu

Fixed in:6.8.0-1028.30~22.04.1USN-7452-1

linux-image-gcp-64kUbuntu

Fixed in:6.8.0-1028.30~22.04.1USN-7452-1

linux-image-gcp-64k-lts-24.04Ubuntu

Fixed in:6.8.0-1028.30USN-7450-1

linux-image-gcp-lts-24.04Ubuntu

Fixed in:6.8.0-1028.30USN-7450-1

linux-image-genericUbuntu

Fixed in:6.8.0-58.60USN-7449-1

linux-image-generic-64kUbuntu

Fixed in:6.8.0-58.60USN-7449-1

linux-image-generic-64k-hwe-22.04Ubuntu

Fixed in:6.8.0-58.60~22.04.1USN-7449-2

linux-image-generic-64k-hwe-24.04Ubuntu

Fixed in:6.11.0-21.21~24.04.1USN-7379-1

linux-image-generic-hwe-22.04Ubuntu

Fixed in:6.8.0-58.60~22.04.1USN-7449-2

linux-image-generic-hwe-24.04Ubuntu

Fixed in:6.11.0-21.21~24.04.1USN-7379-1

linux-image-generic-lpaeUbuntu

Fixed in:6.8.0-58.60USN-7449-1

linux-image-gkeUbuntu

Fixed in:6.8.0-1023.27USN-7450-1

linux-image-gkeopUbuntu

Fixed in:6.8.0-1010.12USN-7450-1

linux-image-gkeop-6.8Ubuntu

Fixed in:6.8.0-1010.12USN-7450-1

linux-image-ibmUbuntu

Fixed in:6.8.0-1024.24USN-7449-1

linux-image-ibm-classicUbuntu

Fixed in:6.8.0-1024.24USN-7449-1

linux-image-ibm-lts-24.04Ubuntu

Fixed in:6.8.0-1024.24USN-7449-1

linux-image-kvmUbuntu

Fixed in:6.8.0-58.60USN-7449-1

linux-image-lowlatencyUbuntu

Fixed in:6.8.0-58.60.1USN-7449-1

linux-image-lowlatency-64kUbuntu

Fixed in:6.8.0-58.60.1USN-7449-1

linux-image-lowlatency-64k-hwe-22.04Ubuntu

Fixed in:6.8.0-58.60.1~22.04.1USN-7449-1

linux-image-lowlatency-64k-hwe-24.04Ubuntu

Fixed in:6.11.0-1011.12~24.04.1USN-7381-1

linux-image-lowlatency-hwe-22.04Ubuntu

Fixed in:6.8.0-58.60.1~22.04.1USN-7449-1

linux-image-lowlatency-hwe-24.04Ubuntu

Fixed in:6.11.0-1011.12~24.04.1USN-7381-1

linux-image-nvidiaUbuntu

Fixed in:6.8.0-1026.29USN-7449-1

linux-image-nvidia-6.8Ubuntu

Fixed in:6.8.0-1026.29~22.04.1USN-7449-1

linux-image-nvidia-64kUbuntu

Fixed in:6.8.0-1026.29USN-7449-1

linux-image-nvidia-64k-6.8Ubuntu

Fixed in:6.8.0-1026.29~22.04.1USN-7449-1

linux-image-nvidia-64k-hwe-22.04Ubuntu

Fixed in:6.8.0-1026.29~22.04.1USN-7449-1

linux-image-nvidia-hwe-22.04Ubuntu

Fixed in:6.8.0-1026.29~22.04.1USN-7449-1

linux-image-nvidia-lowlatencyUbuntu

Fixed in:6.8.0-1026.29.1USN-7449-1

linux-image-nvidia-lowlatency-64kUbuntu

Fixed in:6.8.0-1026.29.1USN-7449-1

linux-image-oem-22.04Ubuntu

Fixed in:6.8.0-58.60~22.04.1USN-7449-2

linux-image-oem-22.04aUbuntu

Fixed in:6.8.0-58.60~22.04.1USN-7449-2

linux-image-oem-22.04bUbuntu

Fixed in:6.8.0-58.60~22.04.1USN-7449-2

linux-image-oem-22.04cUbuntu

Fixed in:6.8.0-58.60~22.04.1USN-7449-2

linux-image-oem-22.04dUbuntu

Fixed in:6.8.0-58.60~22.04.1USN-7449-2

linux-image-oem-24.04Ubuntu

Fixed in:6.8.0-1026.26USN-7449-1

linux-image-oem-24.04aUbuntu

Fixed in:6.8.0-1026.26USN-7449-1

linux-image-oem-24.04bUbuntu

Fixed in:6.11.0-1017.17USN-7382-1

linux-image-oracleUbuntu

Fixed in:6.8.0-1024.25~22.04.1USN-7449-1

Fixed in:6.8.0-1024.25USN-7449-1

linux-image-oracle-64kUbuntu

Fixed in:6.8.0-1024.25~22.04.1USN-7449-1

Fixed in:6.8.0-1024.25USN-7449-1

linux-image-oracle-64k-lts-24.04Ubuntu

Fixed in:6.8.0-1024.25USN-7449-1

linux-image-oracle-lts-24.04Ubuntu

Fixed in:6.8.0-1024.25USN-7449-1

linux-image-raspiUbuntu

Fixed in:6.8.0-1028.32USN-7524-1

linux-image-raspi-realtimeUbuntu

Fixed in:6.8.0-2023.24USN-7523-1

linux-image-realtimeUbuntu

Fixed in:6.8.1-1020.21USN-7453-1

linux-image-realtime-hwe-24.04Ubuntu

Fixed in:6.8.1-1020.21USN-7453-1

linux-image-virtualUbuntu

Fixed in:6.8.0-58.60USN-7449-1

linux-image-virtual-hwe-22.04Ubuntu

Fixed in:6.8.0-58.60~22.04.1USN-7449-2

linux-image-virtual-hwe-24.04Ubuntu

Fixed in:6.11.0-21.21~24.04.1USN-7379-1

linux-lowlatencyUbuntu

Fixed in:6.8.0-58.60.1USN-7449-1

linux-lowlatency-hwe-6.11Ubuntu

Fixed in:6.11.0-1011.12~24.04.1USN-7381-1

linux-lowlatency-hwe-6.8Ubuntu

Fixed in:6.8.0-58.60.1~22.04.1USN-7449-1

linux-nvidiaUbuntu

Fixed in:6.8.0-1026.29USN-7449-1

linux-nvidia-6.8Ubuntu

Fixed in:6.8.0-1026.29~22.04.1USN-7449-1

linux-nvidia-lowlatencyUbuntu

Fixed in:6.8.0-1026.29.1USN-7449-1

linux-oem-6.11Ubuntu

Fixed in:6.11.0-1017.17USN-7382-1

linux-oem-6.8Ubuntu

Fixed in:6.8.0-1026.26USN-7449-1

linux-oracleUbuntu

Fixed in:6.8.0-1024.25USN-7449-1

linux-oracle-6.8Ubuntu

Fixed in:6.8.0-1024.25~22.04.1USN-7449-1

linux-raspiUbuntu

Fixed in:6.8.0-1028.32USN-7524-1

linux-raspi-realtimeUbuntu

Fixed in:6.8.0-2023.24USN-7523-1

linux-realtimeUbuntu

Fixed in:6.8.1-1020.21USN-7453-1

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 VectorLocal

Attack ComplexityLow

Privileges RequiredLow

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityHigh

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

Exploit Intelligence

0.24%probability of exploitation in 30 days

14thpercentile

Low risk: more likely to be exploited than 14% of all known CVEs.

References

Patch4

Other references2

Related Vulnerabilities

Other CWE-120 (Classic Buffer Overflow) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2014-0195	Medium	6.8	100%	-	Fix
CVE-2017-7269	Critical	9.8	100%	KEV	-
CVE-2019-11043	High	8.7	99%	KEV + Ransom	Fix
CVE-2011-4862	High	10.0	95%	-	Fix
CVE-2007-5659	High	7.8	94%	KEV	Fix
CVE-2022-3786	High	7.5	91%	-	Fix

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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 2026-04-18.