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CVE-2009-4377

14
FAUCET Score

CVE-2009-4377 describes a denial-of-service vulnerability affecting Wireshark versions 0.9.0 through 1.2.4. Remote attackers can crash the application by sending a specially crafted SMB or SMB2 packet, which triggers a NULL pointer dereference within the dissectors. The vulnerability has a CVSS score of 4.3, indicating a medium attack complexity with potential for partial availability impact, and does not require authentication. There is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
0.9.2CPE matchmatch criteria
cpe:2.3:a:wireshark:wireshark:0.9.2:*:*:*:*:*:*:*
0.9.5CPE matchmatch criteria
cpe:2.3:a:wireshark:wireshark:0.9.5:*:*:*:*:*:*:*
0.9.6CPE matchmatch criteria
cpe:2.3:a:wireshark:wireshark:0.9.6:*:*:*:*:*:*:*
0.9.7CPE matchmatch criteria
cpe:2.3:a:wireshark:wireshark:0.9.7:*:*:*:*:*:*:*
0.9.8CPE matchmatch criteria
cpe:2.3:a:wireshark:wireshark:0.9.8:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

4.3MEDIUM

AV:N/AC:M/Au:N/C:N/I:N/A:P

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
8.6
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
2.66%
Probability of exploitation in next 30 days
EPSS Percentile
84.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0266 is in the 75th percentile among its peer group of 19,958 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (3)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 3Fixed in: wireshark-0:1.0.11-EL3.6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 4Fixed in: wireshark-0:1.0.11-1.el4_8.5
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: wireshark-0:1.0.11-1.el5_5.5
View patch

Vendor Advisories (1)

redhatCVE-2009-4377Moderate

wireshark: invalid pointer dereference in SMB/SMB2 dissectors

Dec 17, 2009

References

osvdb.org / 61178
bugs.wireshark.org / bugzilla/show_bug.cgi
Exploit
secunia.com / advisories/37842
Vendor Advisory
secunia.com / advisories/37916
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9564
redhat.com / archives/fedora-package-announce/2009-December/msg01248.html
debian.org / security/2009/dsa-1983
mandriva.com / security/advisories
securityfocus.com / bid/37407
Exploit
securitytracker.com / id
vupen.com / english/advisories/2009/3596
Vendor Advisory
wireshark.org / security/wnpa-sec-2009-09.html
Vendor Advisory