CVE-2024-26256
HighLibarchive Remote Code Execution Vulnerability
Published Apr 9, 2024 · Updated Aug 7, 2026 · Also known as ALPINE-CVE-2024-26256, DEBIAN-CVE-2024-26256, DSA-5706-1, JLSEC-2025-239, UBUNTU-CVE-2024-26256, USN-6805-1
Key Facts
Patch immediately- CVE-2024-26256 is a high-severity vulnerability (CVSS 7.8 v3.1) affecting Libarchive, Fedora (Fedoraproject), Windows 11 22h2 (Microsoft) and 12 more products.
- It is not listed in any known-exploited vulnerabilities catalog. No public exploit code is known.
- EPSS estimates a 88% probability of exploitation in the next 30 days.
- Fixed versions are available, including bsdtar 3.7.4-1.1, Libarchive 3.6.0-1ubuntu1.1, Libarchive 3.6.1-3.
- Brandefense priority: patch immediately, because it is very likely to be exploited soon.
CVSS v3.1
7.8
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS (30-day exploit likelihood)
88%
Higher than 99.7% of all scored CVEs
Exploited in the wild
No known
Not in a known-exploited catalog
Public exploit code
None known
Get the full CVE-2024-26256 brief as a PDF
Every affected product and fixed release, exploitation status and a first 24 hours response checklist, emailed within minutes.
Description
Libarchive Remote Code Execution Vulnerability
Affected Products
55 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| LibarchiveLibarchive | See advisory | 3.7.4 |
| FedoraFedoraproject | 39, 40 | n/a |
| Windows 11 22h2Microsoft | See advisory | 10.0.22621.3447 |
| Windows 11 23h2Microsoft | See advisory | 10.0.22631.3447 |
| Windows Server 2022 23h2Microsoft | See advisory | 10.0.25398.830 |
Patched Releases
bsdtar
3.7.4-1.1
Libarchive
3.6.0-1ubuntu1.1, 3.6.1-3, 3.6.2-1+deb12u1, 3.7.1-2, 3.7.1-2.ph5, 3.7.2-2.1, 3.7.2-2ubuntu0.1, 3.7.4-r0, 3.7.5-r0, NA, 3.7.4
LibArchive_jll
3.7.4+0
libarchive-devel
3.7.1-2.ph5, 3.7.4-1.1, NA
libarchive13
3.6.2-4.1, 3.7.4-1.1, 3.7.4-slfo.1.1_2.1
libarchive13-32bit
3.7.4-1.1
Windows 11 22h2
10.0.22621.3447
Windows 11 23h2
10.0.22631.3447
Windows Server 2022 23h2
10.0.25398.830
rootio-libarchive
3.6.2-1+deb12u1
Windows 11 version 22H2
10.0.22621.3447
Windows 11 version 22H3
10.0.22631.3447
Windows 11 Version 23H2
10.0.22631.3447
Windows Server 2022, 23H2 Edition (Server Core installation)
10.0.25398.830
Timeline
Publicly disclosed
Apr 9, 2024
Last updated
Aug 7, 2026
Weakness Type
- CWE-122 Heap-based Buffer Overflow
- CWE-787 Out-of-bounds Write
References
- advisoryLibarchive Remote Code Execution Vulnerability
- advisoryhttps://security.alpinelinux.org/vuln/CVE-2024-26256
- advisoryhttps://security-tracker.debian.org/tracker/CVE-2024-26256
- advisoryhttps://ubuntu.com/security/CVE-2024-26256
- advisoryhttps://ubuntu.com/security/notices/USN-6805-1
FAQ
Common Questions.
Libarchive Remote Code Execution Vulnerability
Affected: Libarchive; Fedora (Fedoraproject) versions 39, 40; Windows 11 22h2 (Microsoft), among others. The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
No public exploit code is known.
Fixed versions are available, including bsdtar 3.7.4-1.1, Libarchive 3.6.0-1ubuntu1.1, Libarchive 3.6.1-3.
Brandefense priority: patch immediately, because it is very likely to be exploited soon.
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