How severe is CVE-2009-3477?

CVE-2009-3477 has a CVSS 2.0 base score of 6.8, rated medium severity.

Is CVE-2009-3477 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (46th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2009-3477?

CVE-2009-3477 primarily affects Rim Blackberry Device Software. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2009-3477?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2009-3477 published?

CVE-2009-3477 was published on 2009-09-29 and last updated on 2026-06-16.

CVE-2009-3477

CVE-2009-3477 is a medium-severity vulnerability in Rim Blackberry Device Software with a CVSS 2.0 base score of 6.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-310.

Key facts

Severity: Medium (CVSS 2.0 base score 6.8)
EPSS exploit prediction: 1% (46th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-310
Affected product: Rim Blackberry Device Software
Published: 2009-09-29
Last modified: 2026-06-16

Description

The Blackberry Browser in RIM BlackBerry Device Software 4.5.0 before 4.5.0.173, 4.6.0 before 4.6.0.303, 4.6.1 before 4.6.1.309, 4.7.0 before 4.7.0.179, and 4.7.1 before 4.7.1.57 does not properly handle "hidden" characters including a '\0' character in a domain name in the subject's Common Name (CN) field of an X.509 certificate, which allows remote man-in-the-middle attackers to spoof arbitrary SSL servers via a crafted certificate issued by a legitimate Certification Authority, a related issue to CVE-2009-2408.

Frequently asked questions

What is CVE-2009-3477?: The Blackberry Browser in RIM BlackBerry Device Software 4.5.0 before 4.5.0.173, 4.6.0 before 4.6.0.303, 4.6.1 before 4.6.1.309, 4.7.0 before 4.7.0.179, and 4.7.1 before 4.7.1.57 does not properly handle "hidden" characters including a '\0' character in a domain name in the subject's Common Name (CN) field of an X.509 certificate, which allows remote man-in-the-middle attackers to spoof arbitrary SSL servers via a crafted certificate issued by a legitimate Certification Authority, a related issue to CVE-2009-2408.
How severe is CVE-2009-3477?: CVE-2009-3477 has a CVSS 2.0 base score of 6.8, rated medium severity.
Is CVE-2009-3477 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (46th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2009-3477?: CVE-2009-3477 primarily affects Rim Blackberry Device Software. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2009-3477?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2009-3477 published?: CVE-2009-3477 was published on 2009-09-29 and last updated on 2026-06-16.

References

Affected products (5)

cpe:2.3:a:rim:blackberry_device_software:4.5.0:*:*:*:*:*:*:*
cpe:2.3:a:rim:blackberry_device_software:4.6:*:*:*:*:*:*:*
cpe:2.3:a:rim:blackberry_device_software:4.6.1:*:*:*:*:*:*:*
cpe:2.3:a:rim:blackberry_device_software:4.7:*:*:*:*:*:*:*
cpe:2.3:a:rim:blackberry_device_software:4.7.1:*:*:*:*:*:*:*

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