Is CVE-2024-53206 in the CISA KEV catalog?

No. CVE-2024-53206 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2024-53206?

CVE-2024-53206 has a CVSS v3 base score of 7.8 (HIGH).

What is the EPSS score for CVE-2024-53206?

CVE-2024-53206 has an EPSS score of 0.22% (12th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2024-53206?

Upgrade linux on debian 12 to 6.1.123-1 or later. Fixes are available for 102 affected products.

CVE & CISA-KEV Catalog

CVE-2024-53206

HIGH

7.8

CVSS v3

NVD

Description

In the Linux kernel, the following vulnerability has been resolved: tcp: Fix use-after-free of nreq in reqsk_timer_handler(). The cited commit replaced inet_csk_reqsk_queue_drop_and_put() with __inet_csk_reqsk_queue_drop() and reqsk_put() in reqsk_timer_handler(). Then, oreq should be passed to reqsk_put() instead of req; otherwise use-after-free of nreq could happen when reqsk is migrated but the retry attempt failed (e.g. due to timeout). Let's pass oreq to reqsk_put().

CWE-416Use After Free

How to fix

Remediation Available

linuxDebian

Fixed in:6.1.123-1CVE-2024-53206

Fixed in:6.12.3-1CVE-2024-53206

linuxUbuntu

Fixed in:5.15.0-135.146USN-7387-1

linux-awsUbuntu

Fixed in:5.15.0-1080.87USN-7387-1

linux-aws-5.15Ubuntu

Fixed in:5.15.0-1080.87~20.04.1USN-7388-1

linux-aws-fipsUbuntu

Fixed in:5.15.0-1080.87+fips1USN-7387-2

linux-azureUbuntu

Fixed in:5.15.0-1084.93USN-7387-1

linux-azure-5.15Ubuntu

Fixed in:5.15.0-1086.95~20.04.1USN-7421-1

linux-azure-fde-5.15Ubuntu

Fixed in:5.15.0-1086.95~20.04.1.1USN-7421-1

linux-azure-fipsUbuntu

Fixed in:5.15.0-1083.92+fips1USN-7387-2

linux-fipsUbuntu

Fixed in:5.15.0-135.146+fips1USN-7387-2

linux-gcpUbuntu

Fixed in:5.15.0-1079.88USN-7387-1

linux-gcp-5.15Ubuntu

Fixed in:5.15.0-1081.90~20.04.1USN-7459-2

linux-gcp-fipsUbuntu

Fixed in:5.15.0-1079.88+fips1USN-7387-2

linux-gkeUbuntu

Fixed in:5.15.0-1077.83USN-7387-1

linux-gkeopUbuntu

Fixed in:5.15.0-1062.70USN-7387-1

linux-hwe-5.15Ubuntu

Fixed in:5.15.0-136.147~20.04.1USN-7407-1

linux-ibmUbuntu

Fixed in:5.15.0-1072.75USN-7387-1

linux-image-5.15.0-1062-gkeopUbuntu

Fixed in:5.15.0-1062.70USN-7387-1

linux-image-5.15.0-1072-ibmUbuntu

Fixed in:5.15.0-1072.75USN-7387-1

linux-image-5.15.0-1073-intel-iot-realtimeUbuntu

Fixed in:5.15.0-1073.75USN-7387-3

linux-image-5.15.0-1074-nvidiaUbuntu

Fixed in:5.15.0-1074.75USN-7387-1

linux-image-5.15.0-1074-nvidia-lowlatencyUbuntu

Fixed in:5.15.0-1074.75USN-7387-1

linux-image-5.15.0-1074-raspiUbuntu

Fixed in:5.15.0-1074.77USN-7387-1

linux-image-5.15.0-1075-intel-iotgUbuntu

Fixed in:5.15.0-1075.81USN-7387-1

linux-image-5.15.0-1076-kvmUbuntu

Fixed in:5.15.0-1076.81USN-7388-1

linux-image-5.15.0-1077-gkeUbuntu

Fixed in:5.15.0-1077.83USN-7387-1

linux-image-5.15.0-1077-intel-iotgUbuntu

Fixed in:5.15.0-1077.83~20.04.1USN-7459-1

linux-image-5.15.0-1077-oracleUbuntu

Fixed in:5.15.0-1077.83~20.04.1USN-7387-1

Fixed in:5.15.0-1077.83USN-7387-1

linux-image-5.15.0-1079-gcpUbuntu

Fixed in:5.15.0-1079.88USN-7387-1

linux-image-5.15.0-1079-gcp-fipsUbuntu

Fixed in:5.15.0-1079.88+fips1USN-7387-2

linux-image-5.15.0-1080-awsUbuntu

Fixed in:5.15.0-1080.87~20.04.1USN-7388-1

Fixed in:5.15.0-1080.87USN-7387-1

linux-image-5.15.0-1080-aws-fipsUbuntu

Fixed in:5.15.0-1080.87+fips1USN-7387-2

linux-image-5.15.0-1080-realtimeUbuntu

Fixed in:5.15.0-1080.88USN-7387-3

linux-image-5.15.0-1081-gcpUbuntu

Fixed in:5.15.0-1081.90~20.04.1USN-7459-2

linux-image-5.15.0-1083-azure-fipsUbuntu

Fixed in:5.15.0-1083.92+fips1USN-7387-2

linux-image-5.15.0-1084-azureUbuntu

Fixed in:5.15.0-1084.93USN-7387-1

linux-image-5.15.0-1086-azureUbuntu

Fixed in:5.15.0-1086.95~20.04.1USN-7421-1

linux-image-5.15.0-1086-azure-fdeUbuntu

Fixed in:5.15.0-1086.95~20.04.1.1USN-7421-1

linux-image-5.15.0-135-fipsUbuntu

Fixed in:5.15.0-135.146+fips1USN-7387-2

linux-image-5.15.0-135-genericUbuntu

Fixed in:5.15.0-135.146USN-7387-1

linux-image-5.15.0-135-generic-64kUbuntu

Fixed in:5.15.0-135.146USN-7387-1

linux-image-5.15.0-135-generic-lpaeUbuntu

Fixed in:5.15.0-135.146USN-7387-1

linux-image-5.15.0-135-lowlatencyUbuntu

Fixed in:5.15.0-135.146~20.04.1USN-7387-1

Fixed in:5.15.0-135.146USN-7387-1

linux-image-5.15.0-135-lowlatency-64kUbuntu

Fixed in:5.15.0-135.146~20.04.1USN-7387-1

Fixed in:5.15.0-135.146USN-7387-1

linux-image-5.15.0-136-genericUbuntu

Fixed in:5.15.0-136.147~20.04.1USN-7407-1

linux-image-5.15.0-136-generic-64kUbuntu

Fixed in:5.15.0-136.147~20.04.1USN-7407-1

linux-image-5.15.0-136-generic-lpaeUbuntu

Fixed in:5.15.0-136.147~20.04.1USN-7407-1

linux-image-awsUbuntu

Fixed in:5.15.0.1080.87~20.04.1USN-7388-1

linux-image-aws-fipsUbuntu

Fixed in:5.15.0.1080.76USN-7387-2

linux-image-aws-lts-22.04Ubuntu

Fixed in:5.15.0.1080.82USN-7387-1

linux-image-azureUbuntu

Fixed in:5.15.0.1086.95~20.04.1USN-7421-1

linux-image-azure-cvmUbuntu

Fixed in:5.15.0.1086.95~20.04.1USN-7421-1

linux-image-azure-fdeUbuntu

Fixed in:5.15.0.1086.95~20.04.1.61USN-7421-1

linux-image-azure-fipsUbuntu

Fixed in:5.15.0.1083.70USN-7387-2

linux-image-azure-lts-22.04Ubuntu

Fixed in:5.15.0.1084.82USN-7387-1

linux-image-fipsUbuntu

Fixed in:5.15.0.135.76USN-7387-2

linux-image-gcpUbuntu

Fixed in:5.15.0.1081.90~20.04.1USN-7459-2

linux-image-gcp-fipsUbuntu

Fixed in:5.15.0.1079.69USN-7387-2

linux-image-gcp-lts-22.04Ubuntu

Fixed in:5.15.0.1079.75USN-7387-1

linux-image-genericUbuntu

Fixed in:5.15.0.135.133USN-7387-1

linux-image-generic-64kUbuntu

Fixed in:5.15.0.135.133USN-7387-1

linux-image-generic-64k-hwe-20.04Ubuntu

Fixed in:5.15.0.136.147~20.04.1USN-7407-1

linux-image-generic-hwe-20.04Ubuntu

Fixed in:5.15.0.136.147~20.04.1USN-7407-1

linux-image-generic-lpaeUbuntu

Fixed in:5.15.0.135.133USN-7387-1

linux-image-generic-lpae-hwe-20.04Ubuntu

Fixed in:5.15.0.136.147~20.04.1USN-7407-1

linux-image-gkeUbuntu

Fixed in:5.15.0.1077.76USN-7387-1

linux-image-gke-5.15Ubuntu

Fixed in:5.15.0.1077.76USN-7387-1

linux-image-gkeopUbuntu

Fixed in:5.15.0.1062.61USN-7387-1

linux-image-gkeop-5.15Ubuntu

Fixed in:5.15.0.1062.61USN-7387-1

linux-image-ibmUbuntu

Fixed in:5.15.0.1072.68USN-7387-1

linux-image-intelUbuntu

Fixed in:5.15.0.1077.83~20.04.1USN-7459-1

linux-image-intel-iot-realtimeUbuntu

Fixed in:5.15.0.1073.77USN-7387-3

linux-image-intel-iotgUbuntu

Fixed in:5.15.0.1077.83~20.04.1USN-7459-1

Fixed in:5.15.0.1075.75USN-7387-1

linux-image-kvmUbuntu

Fixed in:5.15.0.1076.72USN-7388-1

linux-image-lowlatencyUbuntu

Fixed in:5.15.0.135.122USN-7387-1

linux-image-lowlatency-64kUbuntu

Fixed in:5.15.0.135.122USN-7387-1

linux-image-lowlatency-64k-hwe-20.04Ubuntu

Fixed in:5.15.0.135.146~20.04.1USN-7387-1

linux-image-lowlatency-hwe-20.04Ubuntu

Fixed in:5.15.0.135.146~20.04.1USN-7387-1

linux-image-nvidiaUbuntu

Fixed in:5.15.0.1074.74USN-7387-1

linux-image-nvidia-lowlatencyUbuntu

Fixed in:5.15.0.1074.74USN-7387-1

linux-image-oem-20.04Ubuntu

Fixed in:5.15.0.136.147~20.04.1USN-7407-1

linux-image-oem-20.04bUbuntu

Fixed in:5.15.0.136.147~20.04.1USN-7407-1

linux-image-oem-20.04cUbuntu

Fixed in:5.15.0.136.147~20.04.1USN-7407-1

linux-image-oem-20.04dUbuntu

Fixed in:5.15.0.136.147~20.04.1USN-7407-1

linux-image-oracleUbuntu

Fixed in:5.15.0.1077.83~20.04.1USN-7387-1

linux-image-oracle-lts-22.04Ubuntu

Fixed in:5.15.0.1077.73USN-7387-1

linux-image-raspiUbuntu

Fixed in:5.15.0.1074.72USN-7387-1

linux-image-raspi-nolpaeUbuntu

Fixed in:5.15.0.1074.72USN-7387-1

linux-image-realtimeUbuntu

Fixed in:5.15.0.1080.83USN-7387-3

linux-image-virtualUbuntu

Fixed in:5.15.0.135.133USN-7387-1

linux-image-virtual-hwe-20.04Ubuntu

Fixed in:5.15.0.136.147~20.04.1USN-7407-1

linux-intel-iot-realtimeUbuntu

Fixed in:5.15.0-1073.75USN-7387-3

linux-intel-iotgUbuntu

Fixed in:5.15.0-1075.81USN-7387-1

linux-intel-iotg-5.15Ubuntu

Fixed in:5.15.0-1077.83~20.04.1USN-7459-1

linux-kvmUbuntu

Fixed in:5.15.0-1076.81USN-7388-1

linux-lowlatencyUbuntu

Fixed in:5.15.0-135.146USN-7387-1

linux-lowlatency-hwe-5.15Ubuntu

Fixed in:5.15.0-135.146~20.04.1USN-7387-1

linux-nvidiaUbuntu

Fixed in:5.15.0-1074.75USN-7387-1

linux-oracleUbuntu

Fixed in:5.15.0-1077.83USN-7387-1

linux-oracle-5.15Ubuntu

Fixed in:5.15.0-1077.83~20.04.1USN-7387-1

linux-raspiUbuntu

Fixed in:5.15.0-1074.77USN-7387-1

linux-realtimeUbuntu

Fixed in:5.15.0-1080.88USN-7387-3

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

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

0.22%probability of exploitation in 30 days

12thpercentile

Low risk: more likely to be exploited than 12% of all known CVEs.

References

Patch6

Other references1

lists.debian.org

Related Vulnerabilities

Other CWE-416 (Use After Free) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2019-0708	Critical	9.8	100%	KEV + Ransom	-
CVE-2021-31166	Critical	9.8	100%	KEV	Fix
CVE-2015-5119	Critical	9.8	99%	KEV	-
CVE-2010-3962	High	8.1	97%	KEV	-
CVE-2015-0313	Critical	9.8	96%	KEV	Fix
CVE-2017-9798	High	7.5	95%	-	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 2025-11-03.