Vulnerability Report

CVE-2026-5745

Title: CVE-2026-5745

Memory Corruption

Proof Of Concept

No public PoC currently indexed for CVE-2026-5745.

CWE Category CWE-476

Published Date Apr 07, 2026

Modified Date May 03, 2026

Exploit Status Not Found

Score 5.5 CVSS v3.1

Exploit Probability (EPSS)

0.16%

Vulnerability Summary

CVE-2026-5745: A flaw was found in libarchive. A NULL pointer dereference vulnerability exists in the ACL parsing logic, specifically within the archive_acl_from_text_nl() function. When processing a malformed ACL string (such as a bare "d" or "default" tag without subsequent fields), the function fails to perform adequate validation before advancing the pointer. An attacker can exploit this by providing a maliciously crafted archive, causing an application utilizing the libarchive API (such as bsdtar) to crash, resulting in a Denial of Service (DoS).

Impacted Vendors

freebsd 1

libarchive 1

redhat 2

Reference Links

https://access.redhat.com/security/cve/CVE-2026-5745 https://bugzilla.redhat.com/show_bug.cgi?id=2455921

CVSS v3.1

Source Entity [email protected]

Severity MEDIUM

5.5

Attack Vector

LOCAL

Complexity

LOW

Privileges

N/A

Interaction

REQUIRED

Confidentiality

N/A

Integrity

N/A

Availability

N/A

Scope

UNCHANGED

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

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2026-5745 Exploits & PoCs (Proof Of Concept)

No public PoCs found in our database for this CVE.

May 03, 2026 MODIFIED

Vulnerability data updated via NVD.

April 28, 2026 MODIFIED

Vulnerability data updated via NVD.

April 08, 2026 MODIFIED

Vulnerability data updated via NVD.

April 07, 2026 MODIFIED

Vulnerability data updated via NVD.

Attack Vector Matrix

Access Vector LOCAL

Complexity LOW

Privileges N/A

Interaction REQUIRED

CVSS Vector String


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

Affected Stack

No specific products linked.