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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

CVE-2025-5914 is a high-severity libarchive memory-safety flaw triggered while processing RAR data. A malicious archive could crash an affected process or potentially enable arbitrary code execution. Successful exploitation requires a user or application to process the archive, so systems handling untrusted uploads or attachments deserve prompt attention.

Executive priority

Treat this as a prompt patching priority for internet-facing upload pipelines, mail or content scanners, and shared extraction services. Other systems can follow risk-based scheduling after confirming whether they process untrusted RAR files. There is high potential impact, but no supplied evidence of active exploitation.

Technical view

An integer overflow in archive_read_format_rar_seek_data() can lead to a double free and memory corruption. CVSS 3.1 rates it 7.8: local attack vector, low complexity, no privileges, user interaction required, and potentially high confidentiality, integrity, and availability impact.

Likely exposure

Exposure is highest where affected libarchive packages automatically or routinely inspect attacker-controlled RAR archives, including upload, attachment, scanning, or extraction workflows. The bundle identifies affected Red Hat Enterprise Linux 7–10 variants and OpenShift 4.14–4.16 builds; it does not establish every affected upstream or downstream version.

Exploitation context

The supplied sources do not report active exploitation, and the CVE is not marked as CISA KEV. Exploitation requires crafted input to be processed locally, but no privileges are required. Potential outcomes include process denial of service or arbitrary code execution in the affected process's security context.

Researcher notes

The vulnerable path is RAR seek handling in archive_read_support_format_rar.c. The stated weakness is CWE-190, with integer overflow progressing to double free. The bundle provides affected Red Hat package builds and multiple errata, but no complete upstream affected range, fixed-version boundary, public proof of concept, or confirmed exploitation telemetry.

Mitigation direction

  • Identify systems and applications using libarchive to process RAR files.
  • Apply the applicable Red Hat security erratum or current vendor-supported update.
  • Prioritize services that accept archives from untrusted users or external sources.
  • Until updated, restrict untrusted RAR processing where operationally feasible.
  • Check upstream or downstream vendor guidance for products not covered by Red Hat advisories.

Validation and detection

  • Inventory installed libarchive and RHCOS package versions across hosts, containers, and images.
  • Compare detected versions and product streams with the applicable vendor advisory.
  • Confirm updated packages are active after deployment, including rebuilt containers and restarted services.
  • Review archive-processing workflows for externally supplied RAR content.
  • Monitor affected processes for unexplained crashes or memory-corruption indicators.
Prepared
Confidence
high
Sources
6

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
2ADP providers
34Source 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
siemens-SADPADP container

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