Buffer overflow in Wireshark
Priority LOW 32CWE-120Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · Low · High
- Fix status
- Partial Red Hat: 4 without a fix
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat.
Summary
ISO 15765 and ISO 10681 dissector crash in Wireshark 4.0.0 to 4.0.3 and 3.6.0 to 3.6.11 allows denial of service via packet injection or crafted capture file
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00649 51st percentileScored 2026-11-07
Fix Partial Wireshark (Wireshark Foundation): 4.0.4, 3.6.12Red Hat: 4 without a fix
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- 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
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Wireshark Foundation | Wireshark | 4.0.0 to before 4.0.4; 3.6.0 to before 3.6.12 | 4.0.4, 3.6.12 | Patch available | CNA |
- Wireshark VendorWireshark Foundation Affected 4.0.0 to before 4.0.4; 3.6.0 to before 3.6.12 Fixed in 4.0.4, 3.6.12 Patch available CNA
CPE configurations NVD · 3
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:wireshark:wireshark:*:*:*:*:*:*:*:* | 3.6.0 to before 3.6.12; 4.0.0 to before 4.0.4 | Vulnerable | Wireshark Foundation |
| cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* | 10.0 | Vulnerable | Debian |
| cpe:2.3:o:debian:debian_linux:12.0:*:*:*:*:*:*:* | 12.0 | Vulnerable | Debian |
- cpe:2.3:a:wireshark:wireshark:*:*:*:*:*:*:*:* Versions 3.6.0 to before 3.6.12; 4.0.0 to before 4.0.4 Vulnerable ·Wireshark Foundation
- cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* Versions 10.0 Vulnerable ·Debian
- cpe:2.3:o:debian:debian_linux:12.0:*:*:*:*:*:*:* Versions 12.0 Vulnerable ·Debian
Remediation
- Fix · CNA Wireshark (Wireshark Foundation) Fixed in 4.0.4, 3.6.12
Vendor assessments
Red Hat
Red Hat rating: Moderate. 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 planned: Will not fix |
| Red Hat Enterprise Linux 9 | Affected | No fix planned: Will not fix |
Timeline
- 2026-10-02 Threatist record created from CVE-2023-1161
- 2026-10-03 Alias added: GHSA-rf23-mj2w-9g24
- 2026-10-16 EPSS moved to the 50th–90th percentile
References
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-2023-1161 · CVE Program
- CVE-2023-1161 · NVD
- FIRST EPSS
- GHSA-rf23-mj2w-9g24 · GitHub Advisory Database · CC BY 4.0
- CVE-2023-1161 · Red Hat security data · CC BY 4.0
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