The MEGACO dissector in Wireshark (formerly Ethereal) 0.9.14 to 0.99.6 allows remote attackers to cause a denial of service (long loop and r
The MEGACO dissector in Wireshark (formerly Ethereal) 0.9.14 to 0.99.6 allows remote attackers to cause a denial of service (long loop and resource consumption) via unknown vectors.
- Published
- Nov 23, 2007
- Updated
- Jun 16, 2026
- EPSS
- 2.3% · 82th percentile
- CWE
- —
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Report tools
Action score
32
Monitor
Low priority for now.
- CVSS
- 31 / 40 · 7.8 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 1 / 30 · 2.3%
Affected systems
| Vendor | Product | CPE |
|---|---|---|
| wireshark | wireshark | cpe:2.3:a:wireshark:wireshark |
| ethereal group | ethereal | cpe:2.3:a:ethereal_group:ethereal |
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- ethereal group ethereal0.9.14
- ethereal group ethereal0.9.15
- ethereal group ethereal0.9.16
- ethereal group ethereal0.99.0
- wireshark wireshark0.99
- wireshark wireshark0.99.0
- wireshark wireshark0.99.1
- wireshark wireshark0.99.2
- wireshark wireshark0.99.3
- wireshark wireshark0.99.4
- wireshark wireshark0.99.5
- wireshark wireshark0.99.6
Package-level exposure
OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.
| Ecosystem | Package | Affected range | Fix |
|---|---|---|---|
| Debian:12 | wireshark | before 0.99.7~pre1-1 | 0.99.7~pre1-1 |
| Debian:3.1 | ethereal | before 0.10.10-2sarge10 | 0.10.10-2sarge10 |
| Debian:4.0 | wireshark | before 0.99.4-5.etch.1 | 0.99.4-5.etch.1 |
| Debian:5.0 | wireshark | before 0.99.6rel-5+0.99.7~pre1-1+lenny1 | 0.99.6rel-5+0.99.7~pre1-1+lenny1 |
| Red Hat:enterprise_linux:3::as | libsmi | before 0:0.4.5-3.el3 | 0:0.4.5-3.el3 |
| Red Hat:enterprise_linux:3::as | libsmi-debuginfo | before 0:0.4.5-3.el3 | 0:0.4.5-3.el3 |
| Red Hat:enterprise_linux:3::as | libsmi-devel | before 0:0.4.5-3.el3 | 0:0.4.5-3.el3 |
| Red Hat:enterprise_linux:3::as | wireshark | before 0:0.99.7-EL3.1 | 0:0.99.7-EL3.1 |
| Red Hat:enterprise_linux:3::as | wireshark-debuginfo | before 0:0.99.7-EL3.1 | 0:0.99.7-EL3.1 |
| Red Hat:enterprise_linux:3::as | wireshark-gnome | before 0:0.99.7-EL3.1 | 0:0.99.7-EL3.1 |
| Red Hat:enterprise_linux:4::as | libsmi | before 0:0.4.5-2.el4 | 0:0.4.5-2.el4 |
| Red Hat:enterprise_linux:4::as | libsmi-debuginfo | before 0:0.4.5-2.el4 | 0:0.4.5-2.el4 |
| Red Hat:enterprise_linux:4::as | libsmi-devel | before 0:0.4.5-2.el4 | 0:0.4.5-2.el4 |
| Red Hat:enterprise_linux:4::as | wireshark | before 0:0.99.7-1.el4 | 0:0.99.7-1.el4 |
| Red Hat:enterprise_linux:4::as | wireshark-debuginfo | before 0:0.99.7-1.el4 | 0:0.99.7-1.el4 |
| Red Hat:enterprise_linux:4::as | wireshark-gnome | before 0:0.99.7-1.el4 | 0:0.99.7-1.el4 |
| Red Hat:enterprise_linux:5::client_workstation | libsmi | before 0:0.4.5-2.el5 | 0:0.4.5-2.el5 |
| Red Hat:enterprise_linux:5::client_workstation | libsmi-debuginfo | before 0:0.4.5-2.el5 | 0:0.4.5-2.el5 |
| Red Hat:enterprise_linux:5::client_workstation | libsmi-devel | before 0:0.4.5-2.el5 | 0:0.4.5-2.el5 |
| Red Hat:enterprise_linux:5::client_workstation | wireshark | before 0:0.99.7-1.el5 | 0:0.99.7-1.el5 |
| Red Hat:enterprise_linux:5::client_workstation | wireshark-debuginfo | before 0:0.99.7-1.el5 | 0:0.99.7-1.el5 |
| Red Hat:enterprise_linux:5::client_workstation | wireshark-gnome | before 0:0.99.7-1.el5 | 0:0.99.7-1.el5 |
Same product
wireshark: all recordsOther highest-scoring records for the same primary product.
- CVE-2010-0304Multiple buffer overflows in the LWRES dissector in Wireshark 0.9.15 through 1.0.10 and 1.2.0 through 1.2.5 allow remote attackers to cause 52Plan
- CVE-2014-2299Buffer overflow in the mpeg_read function in wiretap/mpeg.c in the MPEG parser in Wireshark 1.8.x before 1.8.13 and 1.10.x before 1.10.6 all51Plan
- CVE-2011-1591Stack-based buffer overflow in the DECT dissector in epan/dissectors/packet-dect.c in Wireshark 1.4.x before 1.4.5 allows remote attackers t50Plan
- CVE-2011-3360Untrusted search path vulnerability in Wireshark 1.4.x before 1.4.9 and 1.6.x before 1.6.2 allows local users to gain privileges via a Troja47Plan
- CVE-2010-4538Buffer overflow in the sect_enttec_dmx_da function in epan/dissectors/packet-enttec.c in Wireshark 1.4.2 allows remote attackers to cause a 46Plan
- CVE-2009-1210Format string vulnerability in the PROFINET/DCP (PN-DCP) dissector in Wireshark 1.0.6 and earlier allows remote attackers to execute arbitra45Plan
Remediation
Which version to upgrade to
Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.
| Product / package | Fixed version | Source |
|---|---|---|
| debian:ethereal | 0.10.10-2sarge10 · Debian:3.1 | Package registry (OSV) |
| debian:wireshark | 0.99.7~pre1-1 · Debian:12 | Package registry (OSV) |
| red hat:libsmi | 0:0.4.5-2.el4 · Red Hat:enterprise_linux:4::as | Package registry (OSV) |
| red hat:libsmi-debuginfo | 0:0.4.5-2.el4 · Red Hat:enterprise_linux:4::as | Package registry (OSV) |
| red hat:libsmi-devel | 0:0.4.5-2.el4 · Red Hat:enterprise_linux:4::as | Package registry (OSV) |
| red hat:wireshark | 0:0.99.7-1.el4 · Red Hat:enterprise_linux:4::as | Package registry (OSV) |
| red hat:wireshark-debuginfo | 0:0.99.7-1.el4 · Red Hat:enterprise_linux:4::as | Package registry (OSV) |
| red hat:wireshark-gnome | 0:0.99.7-1.el4 · Red Hat:enterprise_linux:4::as | Package registry (OSV) |
Exploit status
No known public exploit
No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.
Research context
For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.
Timeline
From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.
No dated events beyond publication.
FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).
Patch and commit links
Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.
No commit or PR link among the references.
Credits
All researchersFinders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.
No credits in the CNA record.
Variant candidates
Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.
No nightly-computed relations.
Chain candidates
An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.
—
Bug bounty scope
No known public program.
Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).
Technical details
Attack conditions
- No special conditions are required; it is repeatable.
If successful
- Confidentiality
- none
- Integrity
- none
- Availability
- C · the service can be disrupted
- Attack complexity
- Low
- Confidentiality impact
- None
- Integrity impact
- None
- Availability impact
- C
Weakness class (CWE)
—
CVSS vector
AV:N/AC:L/Au:N/C:N/I:N/A:C
nvd-primary
Attack context
MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.
MITRE has no CAPEC/ATT&CK mapping for this CWE.
Change log
- Fix✗ → ✓
For records you follow, these changes also arrive as notifications. →
References
- bugs.gentoo.org/show_bug.cgi?id=199958
- lists.opensuse.org/opensuse-security-announce/2008-02/msg00008.html
- secunia.com/advisories/27777
- secunia.com/advisories/27817
- secunia.com/advisories/28197
- secunia.com/advisories/28207
- secunia.com/advisories/28288
- secunia.com/advisories/28304
- secunia.com/advisories/28325
- secunia.com/advisories/28564
- secunia.com/advisories/28583
- secunia.com/advisories/29048
- security.gentoo.org/glsa/glsa-200712-23.xml
- securitytracker.com/id?1018988
- wiki.rpath.com/wiki/Advisories:rPSA-2008-0004
- www.debian.org/security/2007/dsa-1414
- www.mandriva.com/security/advisories?name=MDVSA-2008:001
- www.mandriva.com/security/advisories?name=MDVSA-2008:1
- www.redhat.com/support/errata/RHSA-2008-0058.html
- www.redhat.com/support/errata/RHSA-2008-0059.html
Vendor advisories and official records. Exploit/PoC links are deliberately left out.