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CVE-2016-4425

26
FAUCET Score

CVE-2016-4425 describes a denial-of-service vulnerability in Jansson versions 2.7 and earlier, where specially crafted JSON data can lead to deep recursion, stack consumption, and application crashes. With a CVSS score of 7.5 (High), this vulnerability is remotely exploitable with low attack complexity, allowing unauthenticated attackers to achieve a high impact on availability. 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
<= 2.7CPE matchmatch criteria
cpe:2.3:a:jansson_project:jansson:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

7.5HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
1.89%
Probability of exploitation in next 30 days
EPSS Percentile
77.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0189 is in the 61st percentile among its peer group of 51,485 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 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

Patch Available

Vendor Patches (2)

github_advisorypatch availablevia nvd_reference
View patch
redhatno patchvia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: jansson

Vendor Advisories (1)

redhatCVE-2016-4425Moderate

jansson: stack exhaustion parsing a JSON file

May 1, 2016

References

github.com / akheron/jansson/issues/282
Patch
github.com / akheron/jansson/pull/284
Patch
github.com / akheron/jansson/pull/284/commits/64ce0ad3731ebd77e02897b07920eadd0e2cc318
debian.org / security/2015/dsa-3577
openwall.com / lists/oss-security/2016/05/01/5
openwall.com / lists/oss-security/2016/05/02/1
openwall.com / lists/oss-security/2016/05/03/3