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CVE Record

CVE-2025-5914: Libarchive: double free at archive_read_format_rar_seek_data() in archive_read_support_format_rar.c

A vulnerability has been identified in the libarchive library, specifically within the archive_read_format_rar_seek_data() function. This flaw involves an integer overflow that can ultimately lead to a double-free condition. Exploiting a double-free vulnerability can result in memory corruption, enabling an attacker to execute arbitrary code or cause a denial-of-service condition.

HighCVSS 7.8Not KEV-listedUpdated
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Glexia's TakeAutomated analysishigh

Security readout for executives and security teams

Plain-English summary

This flaw is in libarchive’s RAR handling. A crafted RAR archive could trigger memory corruption through an integer overflow leading to double free, with possible code execution or denial of service. The source bundle lists affected Red Hat Enterprise Linux and OpenShift Container Platform releases.

Executive priority

Treat as high priority for Linux and OpenShift fleets that process external archives. The business risk is strongest for file intake, scanning, and extraction services where malicious content could cross trust boundaries.

Technical view

CVE-2025-5914 affects archive_read_format_rar_seek_data() in libarchive. The reported root issue is CWE-190 integer overflow, which can lead to double free and memory corruption. CVSS 3.1 is 7.8, local attack vector, low complexity, no privileges, user interaction required, with high confidentiality, integrity, and availability impact.

Likely exposure

Highest exposure is on affected Red Hat systems or OpenShift nodes where libarchive processes untrusted RAR archives, including upload, scanning, extraction, or content-ingestion workflows. Systems not handling RAR content are lower practical risk but still need package inventory review.

Exploitation context

The bundle does not show CISA KEV listing or other cited evidence of active exploitation. Exploitation requires a malicious archive to be processed locally or by a user-assisted workflow, not direct unauthenticated remote network access.

Researcher notes

Evidence is Red Hat-focused. The source bundle identifies many affected RHEL streams and OpenShift 4.14-4.16 rhcos builds, but does not provide exploit status, proof-of-concept details, or universal upstream fixed-version data. Avoid assuming non-Red Hat exposure without separate vendor confirmation.

Mitigation direction

  • Apply the relevant Red Hat RHSA updates for affected RHEL and OpenShift releases.
  • Prioritize systems that parse uploaded, emailed, or externally supplied RAR archives.
  • Temporarily restrict untrusted RAR processing where patching cannot happen quickly.
  • Check Red Hat advisories for exact fixed package and rhcos release guidance.

Validation and detection

  • Inventory installed libarchive package versions across RHEL and OpenShift assets.
  • Map exposed archive-processing workflows that accept RAR files from untrusted sources.
  • Confirm affected versions match Red Hat’s listed vulnerable package builds.
  • Verify updated systems report vendor-fixed libarchive or rhcos package versions.
Prepared
Confidence
medium
Sources
12

Public sources used

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

cwe · low confidence lookup

CWE-190: Exact CWE lookup

Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.

Open ATT&CK lookup
description · low confidence lookup

Execution behavior lookup

The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.

Open ATT&CK lookup
description · low confidence lookup

Container behavior lookup

The affected technology mentions containers, so container-specific ATT&CK technique review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.

Open ATT&CK lookup
cve · low confidence lookup

CVE-2025-5914 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

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Vulnerability profileCVE Program record
Severity
High
CVSS
7.8 (3.1)
Known Exploited
No
Published

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

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

1CVSS vectors
5Timeline events
1ADP providers
33Source links

SSVC decision data

CISA-ADPCISA Coordinator
Timestamp
Version
2.0.3
Exploitation: pocAutomatable: noTechnical Impact: partial

CVSS vector scores

1 official score

We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.

ScoreVersionSeverityVectorExploitImpactSource
7.8CVSS 3.1HighCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H1.85.9redhat

Vulnerability scoring details

Base CVSS 3.1 score

7.8High
CVSS 3.1 vector shape for CVE-2025-5914Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

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

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone

Vulnerability timeline

Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.

  1. Source timelineredhat

    Made public.

  2. Source timelineredhat

    Reported to Red Hat.

  3. CVE reservedCVE Program

    The CVE ID was reserved by the assigning CNA.

  4. CVE publishedCVE Program

    The CVE record was published.

  5. CVE updatedCVE Program

    The CVE record metadata indicates this as the latest update time.

ADP provider summaries

CISA-ADPCISA ADP Vulnrichment
other:ssvc

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
Unknown vendorlibarchivelibarchive, 0unaffected
Red HatRed Hat Enterprise Linux 10libarchive, 0:3.7.7-4.el10_0affected
Red HatRed Hat Enterprise Linux 7 Extended Lifecycle Supportlibarchive, 0:3.1.2-14.el7_9.1affected
Red HatRed Hat Enterprise Linux 8libarchive, 0:3.3.3-6.el8_10affected
Red HatRed Hat Enterprise Linux 8.2 Advanced Update Supportlibarchive, 0:3.3.2-8.el8_2.1affected
Red HatRed Hat Enterprise Linux 8.4 Advanced Mission Critical Update Supportlibarchive, 0:3.3.3-1.el8_4.1affected
Red HatRed Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-Onlibarchive, 0:3.3.3-1.el8_4.1affected
Red HatRed Hat Enterprise Linux 8.6 Advanced Mission Critical Update Supportlibarchive, 0:3.3.3-6.el8_6affected
Red HatRed Hat Enterprise Linux 8.6 Telecommunications Update Servicelibarchive, 0:3.3.3-6.el8_6affected
Red HatRed Hat Enterprise Linux 8.6 Update Services for SAP Solutionslibarchive, 0:3.3.3-6.el8_6affected
Red HatRed Hat Enterprise Linux 8.8 Telecommunications Update Servicelibarchive, 0:3.3.3-5.el8_8.1affected
Red HatRed Hat Enterprise Linux 8.8 Update Services for SAP Solutionslibarchive, 0:3.3.3-5.el8_8.1affected
Red HatRed Hat Enterprise Linux 9libarchive, 0:3.5.3-6.el9_6affected
Red HatRed Hat Enterprise Linux 9libarchive, 0:3.5.3-6.el9_6affected
Red HatRed Hat Enterprise Linux 9.0 Update Services for SAP Solutionslibarchive, 0:3.5.3-2.el9_0.1affected
Red HatRed Hat Enterprise Linux 9.2 Update Services for SAP Solutionslibarchive, 0:3.5.3-5.el9_2affected
Red HatRed Hat Enterprise Linux 9.4 Extended Update Supportlibarchive, 0:3.5.3-4.el9_4.1affected
Red HatRed Hat OpenShift Container Platform 4.14rhcos, 414.92.202510211419-0affected
Red HatRed Hat OpenShift Container Platform 4.15rhcos, 415.92.202601271320-0affected
Red HatRed Hat OpenShift Container Platform 4.16rhcos, 416.94.202601071926-0affected
Red HatRed Hat OpenShift Container Platform 4.17rhcos, 417.94.202510112152-0affected
Red HatRed Hat OpenShift Container Platform 4.18rhcos, 418.94.202510230424-0affected
Red HatRed Hat OpenShift Container Platform 4.19rhcos, 4.19.9.6.202510140714-0affected
Red HatRed Hat OpenShift Container Platform 4.20rhcos, 4.20.9.6.202509251656-0affected
Red HatRed Hat Web Terminal 1.11 on RHEL 9web-terminal/web-terminal-rhel9-operator, 1.11-19affected
Red HatRed Hat Web Terminal 1.11 on RHEL 9web-terminal/web-terminal-tooling-rhel9, 1.11-8affected
Red HatRed Hat Web Terminal 1.12 on RHEL 9web-terminal/web-terminal-tooling-rhel9, 1.12-4affected
Red HatRHOSS-1.36-RHEL-8openshift-serverless-1/logic-data-index-ephemeral-rhel8, 1.36.0-11affected
Red HatRHOSS-1.36-RHEL-8openshift-serverless-1/logic-data-index-postgresql-rhel8, 1.36.0-11affected
Red HatRHOSS-1.36-RHEL-8openshift-serverless-1/logic-db-migrator-tool-rhel8, 1.36.0-11affected
Weakness

CWE details

CWE-190

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.

CWE-190 · source CWE mapping

Integer Overflow or Wraparound

Integer Overflow or Wraparound represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.

Open CWE intelligenceSame-CWE CVEs