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CVE-2012-5787

20
FAUCET Score

CVE-2012-5787 describes a critical vulnerability in the PayPal Merchant SDK where the software fails to properly validate server hostnames against X.509 certificate fields. This flaw enables man-in-the-middle attacks, allowing adversaries to spoof SSL servers using any valid certificate. With a CVSS score of 5.8, this vulnerability has a network attack vector, medium complexity, and could lead to partial compromise of confidentiality and integrity. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
Range not provided by sourceCPE matchmatch criteria
cpe:2.3:a:paypal:merchant_sdk:-:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

5.8MEDIUM

AV:N/AC:M/Au:N/C:P/I:P/A:N

Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
NONE
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
8.6
Impact Score
4.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
0.91%
Probability of exploitation in next 30 days
EPSS Percentile
56.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
This CVE's current EPSS score of 0.0091 is in the 14th percentile among its peer group of 19,954 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.2 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

Remediation records are not available for this CVE.

References

secunia.com / advisories/51184
exchange.xforce.ibmcloud.com / vulnerabilities/79913
github.com / paypal/SDKs/commit/5f2d6dd77fb4211dcde34e36f1864234526c5d64
cs.utexas.edu / ~shmat/shmat_ccs12.pdf
Exploit
securityfocus.com / bid/56445