CVE-2024-26256 | Libarchive Remote Code Execution Vulnerability

Libarchive Remote Code Execution Vulnerability

Published: 2024-04-09 Last update: 2025-01-08 Assigner: [email protected] Source: [email protected]
NVD Status：Analyzed，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2024-26256 is rated Moderate Risk (64.7/100): CVSS High severity, with high exploitation likelihood (EPSS 37.69%, 97th percentile). EPSS ranks this CVE among the most likely to be exploited in the near term. High exploitation likelihood—assess exposure and prioritize remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2024-26256

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-05 38.27% 37.69% -0.58%
2 2026-05-23 37.69% 38.27% +0.58%
3 2026-05-22 — 37.69% —

Full EPSS history (44 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2024-26256

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.8 3.1 HIGH
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:L)
They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:R)
A real person has to do something—click, install, enable—otherwise it doesn’t land.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 1.8 5.9 [email protected]

Weakness enumeration for CVE-2024-26256

OS Trackers for CVE-2024-26256

vendor priority summary link
alpine — CVE-2024-26256: 1 source package rows (libarchive); 41 state rows across 7 repos (3.17-main, 3.18-main, 3.19-main, 3.20-main, 3.21-main, 3.22-main, edge-main); fixed 10, open 31. https://security.alpinelinux.org/vuln/CVE-2024-26256
debian unimportant CVE-2024-26256 unimportant priority: Debian including 1 source packages (libarchive), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2024-26256
redhat medium — https://access.redhat.com/security/cve/CVE-2024-26256
suse high CVE-2024-26256 severity important: SUSE including 19 source package names (bsdtar, bsdtar-3.7.2-150600.3.12.1, …), 122 product×package rows across 47 product lines (Image SLE-Micro, Image SLE-Micro-Azure, … (47 product lines)): Known Not Affected 94, Fixed 28. https://www.suse.com/security/cve/CVE-2024-26256/
ubuntu medium CVE-2024-26256 medium priority: Ubuntu including 1 source packages (libarchive), 8 status rows across 8 suites (bionic, focal, jammy, mantic, noble, trusty, upstream, xenial): not-affected 4, released 3, needs-triage 1. https://ubuntu.com/security/CVE-2024-26256

Affected software / configurations for CVE-2024-26256

Vendor Product Version Raw CPE
libarchive libarchive < 3.7.4 cpe:2.3:a:libarchive:libarchive:*:*:*:*:*:*:*:*
fedoraproject fedora 39 cpe:2.3:o:fedoraproject:fedora:39:*:*:*:*:*:*:*
fedoraproject fedora 40 cpe:2.3:o:fedoraproject:fedora:40:*:*:*:*:*:*:*
microsoft windows_11_22h2 < 10.0.22621.3447 cpe:2.3:o:microsoft:windows_11_22h2:*:*:*:*:*:*:*:*
microsoft windows_11_23h2 < 10.0.22631.3447 cpe:2.3:o:microsoft:windows_11_23h2:*:*:*:*:*:*:*:*
microsoft windows_server_2022_23h2 < 10.0.25398.830 cpe:2.3:o:microsoft:windows_server_2022_23h2:*:*:*:*:*:*:*:*

References for CVE-2024-26256

URL Tags
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-26256 Third Party Advisory
http://www.openwall.com/lists/oss-security/2024/06/04/2 Mailing List
http://www.openwall.com/lists/oss-security/2024/06/05/1 Mailing List
https://github.com/LeSuisse/nixpkgs/commit/81b82a2934521dffef76f7ca305d8d4e22fe7262 Patch
https://github.com/libarchive/libarchive/commit/eb7939b24a681a04648a59cdebd386b1e9dc9237.patch Patch
https://github.com/libarchive/libarchive/releases/tag/v3.7.4 Release Notes
https://lists.fedoraproject.org/archives/list/[email protected]/message/EWANFZ6NEMXFCALXWI2AFKYBOLONAVFC/ Mailing List
https://lists.fedoraproject.org/archives/list/[email protected]/message/TWAMR5TY47UKVYMWQXB34CWSBNTRYMBV/ Mailing List
https://www.openwall.com/lists/oss-security/2024/06/04/2 Mailing List
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