How severe is CVE-2012-0307?

CVE-2012-0307 has a CVSS 2.0 base score of 4.3, rated medium severity.

Is CVE-2012-0307 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (78th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2012-0307?

CVE-2012-0307 primarily affects Symantec Messaging Gateway. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2012-0307?

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

When was CVE-2012-0307 published?

CVE-2012-0307 was published on 2012-08-29 and last updated on 2026-06-16.

CVE-2012-0307

CVE-2012-0307 is a medium-severity vulnerability in Symantec Messaging Gateway with a CVSS 2.0 base score of 4.3. 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-79.

Key facts

Severity: Medium (CVSS 2.0 base score 4.3)
EPSS exploit prediction: 2% (78th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Symantec Messaging Gateway
Published: 2012-08-29
Last modified: 2026-06-16

Description

Multiple cross-site scripting (XSS) vulnerabilities in Symantec Messaging Gateway (SMG) before 10.0 allow remote attackers to inject arbitrary web script or HTML via (1) web content or (2) e-mail content.

Frequently asked questions

What is CVE-2012-0307?: Multiple cross-site scripting (XSS) vulnerabilities in Symantec Messaging Gateway (SMG) before 10.0 allow remote attackers to inject arbitrary web script or HTML via (1) web content or (2) e-mail content.
How severe is CVE-2012-0307?: CVE-2012-0307 has a CVSS 2.0 base score of 4.3, rated medium severity.
Is CVE-2012-0307 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (78th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2012-0307?: CVE-2012-0307 primarily affects Symantec Messaging Gateway. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2012-0307?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2012-0307 published?: CVE-2012-0307 was published on 2012-08-29 and last updated on 2026-06-16.

References

Affected products (5)

cpe:2.3:a:symantec:messaging_gateway:*:*:*:*:*:*:*:*
cpe:2.3:a:symantec:messaging_gateway:9.5:*:*:*:*:*:*:*
cpe:2.3:a:symantec:messaging_gateway:9.5.1:*:*:*:*:*:*:*
cpe:2.3:a:symantec:messaging_gateway:9.5.2:*:*:*:*:*:*:*
cpe:2.3:a:symantec:messaging_gateway:9.5.3:*:*:*:*:*:*:*

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