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CVE-2015-7555

16
FAUCET Score

CVE-2015-7555 describes a heap-based buffer overflow in giflib 5.1.1, specifically within the giffix.c component, affecting Fedora and giflib projects. An attacker can exploit this vulnerability by crafting a malicious GIF file with manipulated image and logical screen width fields, leading to a denial of service (program crash). Rated Medium severity (CVSS 5.5), it requires user interaction (UI:R) and local access (AV:L) to trigger, with the primary impact being availability (A:H). 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
<= 5.1.1CPE matchmatch criteria
cpe:2.3:a:giflib_project:giflib:*:*:*:*:*:*:*:*
22CPE matchmatch criteria
cpe:2.3:o:fedoraproject:fedora:22:*:*:*:*:*:*:*

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
1.48%
Probability of exploitation in next 30 days
EPSS Percentile
71.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0148 is in the 82nd percentile among its peer group of 5,760 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 (4)

fedoravendor investigatingvia nvd_reference
View patch
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: giflib
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: giflib
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: giflib

Vendor Advisories (1)

redhatCVE-2015-7555Moderate

giflib: Heap-based buffer overflow in giffix utility

Dec 21, 2015

References

lists.fedoraproject.org / pipermail/package-announce/2016-January/174876.html
Vendor Advisory
packetstormsecurity.com / files/135034/giflib-5.1.1-Heap-Overflow.html
Exploit
seclists.org / fulldisclosure/2015/Dec/83
Exploit
source.android.com / security/bulletin/2017-05-01
www-01.ibm.com / support/docview.wss
securityfocus.com / archive/1/537171/100/0/threaded
securityfocus.com / bid/81697
securitytracker.com / id/1035331