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CVE-2015-7700

24
FAUCET Score

CVE-2015-7700 is a critical double-free vulnerability affecting pngcrush versions prior to 1.7.87, specifically within the sPLT chunk structure in png.c. With a CVSS score of 9.8, this flaw allows unauthenticated attackers to achieve high impact across confidentiality, integrity, and availability via unspecified network vectors. Despite its high severity, 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
<= 1.7.86CPE matchmatch criteria
cpe:2.3:a:pngcrush_project:pngcrush:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

9.8CRITICAL

CVSS:3.0/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
3.0

Exploit Intelligence

EPSS Score
2.19%
Probability of exploitation in next 30 days
EPSS Percentile
80.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0219 is in the 70th percentile among its peer group of 36,897 CVEs.

Social Chatter

No social media mentions found for this CVE.

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

Vendor Patches (1)

redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: pngcrush

Vendor Advisories (1)

redhatCVE-2015-7700Low

pngcrush: double-free in sPLT and png.c file

Aug 31, 2017

References

pmt.sourceforge.net / pngcrush/changelog.html
Broken Link
sourceforge.net / p/pmt/news/2015/10/pngcrush-1787-released
Release Notes