7.8

CVE-2024-49852: linux Use After Free

CVSS: 7.8v3.1HighModified
AliasesUBUNTU-CVE-2024-49852DEBIAN-CVE-2024-49852
Published 21-10-2024Last modified 11-05-2026
Open JSON

Vulnerability summary

CVE-2024-49852 is a high (CVSS 7.8) Use After Free vulnerability in linux. EPSS estimates a 0.21% chance of exploitation in the next 30 days, higher than 10.4% of scored vulnerabilities.

Overall risk
31/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.8/10
010
High · v3.1 (NVD)
EPSS score
0.21%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 36 · Related 35
DLA-4008-1MGASA-2024-0344MGASA-2024-0345OPENSUSE-SU-2024:14500-1OPENSUSE-SU-2025:14705-1SUSE-SU-2024:3984-1

Timeline

  1. 21-10-2024
    PublishedVulnerability first disclosed.
  2. 11-05-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: scsi: elx: libefc: Fix potential use after free in efc_nport_vport_del() The kref_put() function will call nport->release if the refcount drops to zero. The nport->release release function is _efc_nport_free() which frees "nport". But then we dereference "nport" on the next line which is a use after free. Re-order these lines to avoid the use after free.

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.21%

Chance of exploitation in the next 30 days

Percentile

10%

Versus all other CVEs

30-day change

0.00 pp

From 0.21% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.21%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Ubuntu122 products
  • linux< 5.15.0-127.137 | < 6.8.0-54.56
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-aws< 5.15.0-1073.79 | < 6.8.0-1023.25
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ fcd427303eb90aa3cb08e7e0b68e0e67a6d47346, < 16a570f07d870a285b0c0b0d1ca4dff79e8aa5ff | ≥ fcd427303eb90aa3cb08e7e0b68e0e67a6d47346, < abc71e89170ed32ecf0a5a29f31aa711e143e941 | ≥ fcd427303eb90aa3cb08e7e0b68e0e67a6d47346, < baeb8628ab7f4577740f00e439d3fdf7c876b0ff | ≥ fcd427303eb90aa3cb08e7e0b68e0e67a6d47346, < 7c2908985e4ae0ea1b526b3916de9e5351650908 | ≥ fcd427303eb90aa3cb08e7e0b68e0e67a6d47346, < 98752fcd076a8cbc978016eae7125b4971be1eec | ≥ fcd427303eb90aa3cb08e7e0b68e0e67a6d47346, < 2e4b02fad094976763af08fec2c620f4f8edd9ae | 5.14
  • linux_kernel≥ 5.14, < 5.15.168 | ≥ 5.16, < 6.1.113 | ≥ 6.2, < 6.6.54 | ≥ 6.7, < 6.10.13 | ≥ 6.11, < 6.11.2
Debian1 product
  • linux< 6.1.115-1 | < 6.11.2-1

3 vendors · 125 products

References

34 links
Show all 34 references