CVE & CISA-KEV Catalog

CVE-2024-26256

HIGHEPSS 100th pctl
7.8
CVSS v3
NVD

Description

Libarchive Remote Code Execution Vulnerability

CWE-122Heap-based Buffer OverflowCWE-787Out-of-bounds Write

How to fix

Remediation Available
libarchiveDebian
Fixed in:3.6.2-1+deb12u1CVE-2024-26256
Fixed in:3.7.2-2.1CVE-2024-26256
Fixed in:3.7.2-2.1CVE-2024-26256
Windows 11 Version 22H2Windows
Install:KB5036893Microsoft
Windows 11 Version 23H2Windows
Install:KB5036893Microsoft
Windows Server 2022, 23H2 Edition (Server Core installation)Windows
Install:KB5036910Microsoft
libarchiveUbuntu
Fixed in:3.6.0-1ubuntu1.1USN-6805-1
Fixed in:3.6.2-1ubuntu1.1USN-6805-1
Fixed in:3.7.2-2ubuntu0.1USN-6805-1
libarchive13Ubuntu
Fixed in:3.6.0-1ubuntu1.1USN-6805-1
Fixed in:3.6.2-1ubuntu1.1USN-6805-1
libarchive13t64Ubuntu
Fixed in:3.7.2-2ubuntu0.1USN-6805-1

TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works

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 RequiredNone
User InteractionRequired
ScopeUnchanged

Impact

ConfidentialityHigh
IntegrityHigh
AvailabilityHigh

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

Exploit Intelligence

87.90%probability of exploitation in 30 days
100thpercentile

Very high risk: more likely to be exploited than 100% of all known CVEs.

References

Third-Party Advisory1
Release Notes1

Related Vulnerabilities

Other CWE-122 (Heap-based Buffer Overflow) vulnerabilities, ordered by exploit likelihood. View all

CVESeverityCVSSEPSSExploitedFix
CVE-2015-3113Critical9.8100%KEVFix
CVE-2020-25687Medium5.987%-Fix
CVE-2009-3459High8.887%KEVFix
CVE-2021-21017High8.886%KEV-
CVE-2020-25683Medium5.986%-Fix
CVE-2023-27997Critical9.886%KEV + Ransom-

Common questions

How do I fix CVE-2024-26256?

Published advisories record a fix for 7 affected products. The "How to fix" section on this page lists the fixed version and source advisory for each one, so apply the entry matching what you actually run.

Is CVE-2024-26256 being actively exploited?

Not that we know of. CVE-2024-26256 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 87.9% is the estimated probability that it will be exploited in the next 30 days. That is higher than 100% of all scored CVEs.

How severe is CVE-2024-26256?

CVE-2024-26256 has a CVSS v3 base score of 7.8, rated high. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.

What does CVE-2024-26256 affect?

Published advisories record a fix for libarchive (Debian), Windows 11 Version 22H2 (Windows), Windows 11 Version 23H2 (Windows), Windows Server 2022, 23H2 Edition (Server Core installation) (Windows), and 3 more. Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.

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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 2025-01-08.