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CVE-2015-8668

32
FAUCET Score

CVE-2015-8668 is a critical heap-based buffer overflow vulnerability in the PackBitsPreEncode function of libtiff (4.0.6 and earlier), affecting products like Oracle and Red Hat. This flaw allows unauthenticated remote attackers to execute arbitrary code or cause a denial of service by providing a specially crafted BMP image with a large width field. Despite its CVSS score of 9.8 (Critical) and high FAUCET Risk Score, there is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
<= 4.0.6CPE matchmatch criteria
cpe:2.3:a:libtiff:libtiff:*:*:*:*:*:*:*:*
3.3CPE matchmatch criteria
cpe:2.3:a:oracle:vm_server:3.3:*:*:*:*:*:*:*
3.4CPE matchmatch criteria
cpe:2.3:a:oracle:vm_server:3.4:*:*:*:*:*:*:*
6CPE matchmatch criteria
cpe:2.3:o:oracle:linux:6:-:*:*:*:*:*:*
7CPE matchmatch criteria
cpe:2.3:o:oracle:linux:7:-:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.8CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
13.72%
Probability of exploitation in next 30 days
EPSS Percentile
96.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.1372 is in the 92nd percentile among its peer group of 36,833 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 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 6Fixed in: libtiff-0:3.9.4-18.el6_8
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: libtiff-0:4.0.3-25.el7_2
View patch
redhatno patchvia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: libtiff

Vendor Advisories (1)

redhatCVE-2015-8668Low

libtiff: OOB read in bmp2tiff

Dec 28, 2015

References

packetstormsecurity.com / files/135080/libtiff-4.0.6-Heap-Overflow.html
ExploitThird Party AdvisoryVDB Entry
rhn.redhat.com / errata/RHSA-2016-1546.html
Third Party Advisory
rhn.redhat.com / errata/RHSA-2016-1547.html
Third Party Advisory
security.gentoo.org / glsa/201701-16
Third Party Advisory
oracle.com / technetwork/topics/security/linuxbulletinjul2016-3090544.html
Third Party Advisory
oracle.com / technetwork/topics/security/ovmbulletinjul2016-3090546.html
Third Party Advisory
securityfocus.com / archive/1/537208/100/0/threaded
Broken LinkVDB Entry