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libdvdnav Out-of-Bounds Read in dvdnav_describe_title_chapters

Priority MEDIUM 63CWE-125Published · Updated

Key facts

Attack vector
Local
Privileges required
None
User interaction
Passive
Attack complexity
Low
Attack requirements
None
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
Partial Red Hat: 4 without a fix

Attack profile from CVSS 4.0 · CNA. Fix status from CNA and Red Hat. Impact type from CWE-125 and the CVSS impact.

Summary

libdvdnav before 7.0.0 contains a heap out-of-bounds read in dvdnav_describe_title_chapters (CWE-125). A crafted DVD or disc image declares a VMGI title vts_ttn larger than the title set's entries, so the function reads beyond the part-of-title array. An attacker who supplies such a disc can crash applications that enumerate chapters. Red Hat rates it Moderate.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

Description from the CNA

libdvdnav before 7.0.0 contains a heap out-of-bounds read vulnerability in dvdnav_describe_title_chapters that allows attackers to read beyond the part-of-title array by supplying an oversized vts_ttn value. Attackers can provide a crafted DVD or disc image declaring a larger VMGI title vts_ttn than the title set's entries to crash applications enumerating chapters.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00182 7th percentileScored 2026-11-07
Fix Partial libdvdnav (VideoLAN): 7.0.0Red Hat: 4 without a fix

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
VideoLANlibdvdnavbefore 7.0.07.0.0Patch availableCNA
  • libdvdnav VendorVideoLAN Affected before 7.0.0 Fixed in 7.0.0 Patch available CNA

Remediation

Upgrade libdvdnav to version 7.0.0 or later, which contains the fix. Red Hat Enterprise Linux 7, 8, 9 and 10 have no fix available yet.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

  • Fix · CNA libdvdnav (VideoLAN) Fixed in 7.0.0

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Enterprise Linux 10AffectedNo fix yet: Fix deferred
Red Hat Enterprise Linux 7AffectedNo fix yet: Fix deferred
Red Hat Enterprise Linux 8AffectedNo fix yet: Fix deferred
Red Hat Enterprise Linux 9AffectedNo fix yet: Fix deferred

Timeline

  1. 2026-10-18 Threatist record created from CVE-2026-112057
  2. 2026-10-18 Alias added: GHSA-2m5j-rc78-vx58
  3. 2026-10-18 Affected versions changed · Red Hat
  4. 2026-10-18 CVSS score added · Red Hat
  5. 2026-10-19 Priority changed: MEDIUM → LOW
  6. 2026-10-20 CISA SSVC decision points changed
  7. 2026-10-20 Priority changed: LOW → MEDIUM

References

  • TI-2010-03131 libdirectx_plugin.dll in VideoLAN VLC Media Player before 1.1.8 allows remote attackers… CVSS 2.0HIGH 9.3
  • TI-2023-25623 Videolan VLC prior to version 3.0.20 contains an incorrect offset read that leads to a… CVSS 3.1CRITICAL 9.8
  • TI-2008-04437 Stack-based buffer overflow in the parse_master function in the Ty demux plugin… CVSS 2.0HIGH 9.3
  • TI-2023-25624 Videolan VLC prior to version 3.0.20 contains an Integer underflow that leads to an incorrect packet length. CVSS 3.1HIGH 7.5
  • TI-2022-19821 An integer overflow in the VNC module in VideoLAN VLC Media Player through 3.0.17.4… CVSS 3.1HIGH 7.8
  • TI-2012-01563 Stack-based buffer overflow in VideoLAN VLC media player before 2.0.1 allows remote… CVSS 2.0HIGH 9.3
See all 137 →

Sources