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CVE-2015-8721

16
FAUCET Score

CVE-2015-8721 is a buffer overflow vulnerability in the tvb_uncompress function of Wireshark versions 1.12.x before 1.12.9 and 2.0.x before 2.0.1. A remote attacker can exploit this by sending a crafted packet with zlib compression, leading to a denial of service (application crash). The vulnerability has a CVSS score of 5.5 (MEDIUM), indicating a local attack vector with low complexity, requiring user interaction, and resulting in high availability impact. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
1.12.0CPE matchmatch criteria
cpe:2.3:a:wireshark:wireshark:1.12.0:*:*:*:*:*:*:*
1.12.1CPE matchmatch criteria
cpe:2.3:a:wireshark:wireshark:1.12.1:*:*:*:*:*:*:*
1.12.2CPE matchmatch criteria
cpe:2.3:a:wireshark:wireshark:1.12.2:*:*:*:*:*:*:*
1.12.3CPE matchmatch criteria
cpe:2.3:a:wireshark:wireshark:1.12.3:*:*:*:*:*:*:*
1.12.4CPE matchmatch criteria
cpe:2.3:a:wireshark:wireshark:1.12.4:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

5.5MEDIUM

CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
1.70%
Probability of exploitation in next 30 days
EPSS Percentile
74.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0170 is in the 85th percentile among its peer group of 5,765 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 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (3)

redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: wireshark
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: wireshark
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: wireshark

Vendor Advisories (1)

redhatCVE-2015-8721Moderate

wireshark: Zlib decompression crash (wnpa-sec-2015-40)

Dec 29, 2015

References

bugs.wireshark.org / bugzilla/show_bug.cgi
code.wireshark.org / review/gitweb
security.gentoo.org / glsa/201604-05
debian.org / security/2016/dsa-3505
oracle.com / technetwork/topics/security/bulletinjan2016-2867206.html
securityfocus.com / bid/79814
securitytracker.com / id/1034551
wireshark.org / security/wnpa-sec-2015-40.html
Vendor Advisory