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CVE-2009-3477

20
FAUCET Score

CVE-2009-3477 describes a vulnerability in the Blackberry Browser across several versions of RIM BlackBerry Device Software. This flaw allows remote man-in-the-middle attackers to spoof legitimate SSL servers by exploiting how the browser handles "hidden" characters, specifically null characters, in the Common Name field of an X.509 certificate. With a CVSS score of 6.8, this medium-severity vulnerability could lead to information disclosure and data integrity issues, requiring medium attack complexity. Despite its potential impact, there is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
4.5.0CPE matchmatch criteria
cpe:2.3:a:rim:blackberry_device_software:4.5.0:*:*:*:*:*:*:*
4.6CPE matchmatch criteria
cpe:2.3:a:rim:blackberry_device_software:4.6:*:*:*:*:*:*:*
4.6.1CPE matchmatch criteria
cpe:2.3:a:rim:blackberry_device_software:4.6.1:*:*:*:*:*:*:*
4.7CPE matchmatch criteria
cpe:2.3:a:rim:blackberry_device_software:4.7:*:*:*:*:*:*:*
4.7.1CPE matchmatch criteria
cpe:2.3:a:rim:blackberry_device_software:4.7.1:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

6.8MEDIUM

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

Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
8.6
Impact Score
6.4
CvssVersion
2.0

Exploit Intelligence

EPSS Score
0.62%
Probability of exploitation in next 30 days
EPSS Percentile
46.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0062 is in the 8th percentile among its peer group of 19,958 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/36875
Vendor Advisory
exchange.xforce.ibmcloud.com / vulnerabilities/53490
blackberry.com / btsc/viewContent.do
Vendor Advisory
securityfocus.com / bid/36528
securitytracker.com / id