Memory Allocation with Excessive Size Value in Wireshark
Priority LOW 29CWE-789Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Partial Red Hat: 4 without a fix
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-789.
Summary
RTPS dissector memory leak in Wireshark 4.0.0 to 4.0.8 and 3.6.0 to 3.6.16 allows denial of service via packet injection or crafted capture file
Why it matters now
EPSS 0.00513 43rd percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Partial Wireshark (Wireshark Foundation): 4.0.9, 3.6.17Red Hat: 4 without a fix
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Wireshark Foundation | Wireshark | 4.0.0 to before 4.0.9; 3.6.0 to before 3.6.17 | 4.0.9, 3.6.17 | Patch available | CNA |
- Wireshark VendorWireshark Foundation Affected 4.0.0 to before 4.0.9; 3.6.0 to before 3.6.17 Fixed in 4.0.9, 3.6.17 Patch available CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:wireshark:wireshark:*:*:*:*:*:*:*:* | 3.6.0 to before 3.6.17; 4.0.0 to before 4.0.9 | Vulnerable | Wireshark Foundation |
- cpe:2.3:a:wireshark:wireshark:*:*:*:*:*:*:*:* Versions 3.6.0 to before 3.6.17; 4.0.0 to before 4.0.9 Vulnerable ·Wireshark Foundation
Remediation
- Fix · CNA Wireshark (Wireshark Foundation) Fixed in 4.0.9, 3.6.17
Vendor assessments
Red Hat
Red Hat rating: Low. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 6 | Affected | No fix planned: Out of support scope |
| Red Hat Enterprise Linux 7 | Affected | No fix planned: Out of support scope |
| Red Hat Enterprise Linux 8 | Affected | No fix yet: Fix deferred |
| Red Hat Enterprise Linux 9 | Affected | No fix yet: Fix deferred |
Timeline
- 2026-10-02 Threatist record created from CVE-2023-5371
- 2026-10-03 Alias added: GHSA-j7xf-pgw2-75mr
References
Exploit 1
More Wireshark Foundation Wireshark vulnerabilities
- 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-2026-63614 Heap-based Buffer Overflow in Wireshark CVSS 3.1HIGH 8.1
- TI-2014-01823 Buffer overflow in the mpeg_read function in wiretap/mpeg.c in the MPEG parser in… CVSS 2.0HIGH 9.3
Sources
- CVE-2023-5371 · CVE Program
- CVE-2023-5371 · NVD
- FIRST EPSS
- GHSA-j7xf-pgw2-75mr · GitHub Advisory Database · CC BY 4.0
- CVE-2023-5371 · Red Hat security data · CC BY 4.0
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