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CVE-2016-5430

21
FAUCET Score

CVE-2016-5430 describes a vulnerability in the jose-php library, specifically affecting the JOSE_JWE class in JWE.php before version 2.2.1. The flaw stems from the RSA 1.5 algorithm's implementation lacking Random Filling protection, making it susceptible to a Million Message Attack (MMA). This medium-severity vulnerability (CVSS 5.3) allows remote attackers to obtain cleartext data with low attack complexity and no user interaction required. While the potential impact is data confidentiality loss, there is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 2.2.1CPE matchmatch criteria
cpe:2.3:a:jose-php_project:jose-php:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

5.3MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
1.4
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.74%
Probability of exploitation in next 30 days
EPSS Percentile
75.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
This CVE's current EPSS score of 0.0174 is in the 61st percentile among its peer group of 23,684 CVEs.

Social Chatter

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

Media Mentions

No media coverage found for this CVE.

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

Remediation

Patch Available

Vendor Patches (1)

github_advisorypatch availablevia nvd_reference
View patch

References

github.com / nov/jose-php/commit/f03b986b4439e20b0fd635109b48afe96cf0099b
Patch
securityfocus.com / bid/92741
Third Party AdvisoryVDB Entry