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TI-2026-63614 Aliases CVE-2026-95389GHSA-7xm4-72f8-6hpw

Heap-based Buffer Overflow in Wireshark

Priority HIGH 70CWE-122Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
High
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Red Hat. Impact type from CWE-122 and the CVSS impact.

Summary

SCTP protocol dissector crash in 4.6.0 to 4.6.8 and 4.4.0 to 4.4.18 allows denial of service

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00337 27th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed Wireshark (Wireshark Foundation): 4.6.9, 4.4.19Red Hat: 1 advisory

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Total

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

Affected products

VendorProductAffected versionsFixed inStatusSource
Wireshark FoundationWireshark4.6.0 to before 4.6.9; 4.4.0 to before 4.4.194.6.9, 4.4.19Patch availableCNA
  • Wireshark VendorWireshark Foundation Affected 4.6.0 to before 4.6.9; 4.4.0 to before 4.4.19 Fixed in 4.6.9, 4.4.19 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:wireshark:wireshark:*:*:*:*:*:*:*:*4.4.0 to before 4.4.19; 4.6.0 to before 4.6.9VulnerableWireshark Foundation
  • cpe:2.3:a:wireshark:wireshark:*:*:*:*:*:*:*:* Versions 4.4.0 to before 4.4.19; 4.6.0 to before 4.6.9 Vulnerable ·Wireshark Foundation

Remediation

  • Fix · CNA Wireshark (Wireshark Foundation) Fixed in 4.6.9, 4.4.19

Red Hat 1 advisory

  • RHSA-2026:84721 Released 2026-10-19 · Red Hat rating Important
    wireshark security update
    • Red Hat Enterprise Linux AppStream (v. 10) wireshark-1:4.4.2-10.el10_2.8, wireshark-cli-1:4.4.2-10.el10_2.8
    • Red Hat Enterprise Linux CodeReady Linux Builder (v. 10) wireshark-devel-1:4.4.2-10.el10_2.8

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    Wireshark 4.4.19, 4.6.9

    16 records Highest priority Priority HIGH 3 HIGH, 10 MEDIUM, 3 LOW

    Other records, highest priority first

    • TI-2026-63612 Heap-based Buffer Overflow in WiresharkPriority HIGH 73
    • TI-2026-63770 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') in WiresharkPriority HIGH 67
    • TI-2026-63773 Reachable Assertion in WiresharkPriority MEDIUM 58
    Show all 16 records →

Vendor assessments

Red Hat

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

ProductStatusPlan or fix
Red Hat Enterprise Linux AppStream (v. 10)Fixed RHSA-2026:84721
Red Hat Enterprise Linux CodeReady Linux Builder (v. 10)Fixed RHSA-2026:84721
Not affected: 4 products
  • Red Hat Enterprise Linux 6
  • Red Hat Enterprise Linux 7
  • Red Hat Enterprise Linux 8
  • Red Hat Enterprise Linux 9

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-95389
  2. 2026-10-03 Alias added: GHSA-7xm4-72f8-6hpw
  3. 2026-10-19 Fix available: RHSA-2026:84721 · Red Hat
  4. 2026-10-20 Fix available: Red Hat Enterprise Linux AppStream (v. 10), Red Hat Enterprise Linux CodeReady Linux Builder (v. 10) · Red Hat

References

Exploit 1

Advisory 1

  • TI-2026-53718 Heap-based Buffer Overflow in Wireshark CVSS 3.1CRITICAL 9.8
  • TI-2026-63612 Heap-based Buffer Overflow in Wireshark CVSS 3.1HIGH 8.8
  • TI-2024-16149 A buffer overflow in Wireshark before 4.2.0 allows a remote attacker to cause a denial of… CVSS 3.1HIGH 7.5
  • TI-2010-00291 Multiple buffer overflows in the LWRES dissector in Wireshark 0.9.15 through 1.0.10 and… CVSS 2.0HIGH 7.5
  • TI-2014-01823 Buffer overflow in the mpeg_read function in wiretap/mpeg.c in the MPEG parser in… CVSS 2.0HIGH 9.3
  • TI-2024-10743 Buffer Over-read in Wireshark CVSS 3.1HIGH 7.8
See all 794 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences