How severe is CVE-2012-6685?

CVE-2012-6685 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2012-6685 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (80th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2012-6685?

CVE-2012-6685 primarily affects Nokogiri. In total, 9 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2012-6685?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2012-6685 published?

CVE-2012-6685 was published on 2020-02-19 and last updated on 2026-06-16.

CVE-2012-6685

CVE-2012-6685 is a high-severity vulnerability in Nokogiri with a CVSS 3.x base score of 7.5. 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-776.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 2% (80th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-776
Affected product: Nokogiri
Published: 2020-02-19
Last modified: 2026-06-16

Description

Nokogiri before 1.5.4 is vulnerable to XXE attacks

Frequently asked questions

What is CVE-2012-6685?: Nokogiri before 1.5.4 is vulnerable to XXE attacks
How severe is CVE-2012-6685?: CVE-2012-6685 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2012-6685 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (80th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2012-6685?: CVE-2012-6685 primarily affects Nokogiri. In total, 9 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2012-6685?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2012-6685 published?: CVE-2012-6685 was published on 2020-02-19 and last updated on 2026-06-16.

References

Affected products (9)

cpe:2.3:a:nokogiri:nokogiri:*:*:*:*:*:*:*:*
cpe:2.3:a:redhat:cloudforms_management_engine:5.0:*:*:*:*:*:*:*
cpe:2.3:a:redhat:openshift:2.0:*:*:*:enterprise:*:*:*
cpe:2.3:a:redhat:openstack:4.0:*:*:*:*:*:*:*
cpe:2.3:a:redhat:openstack:6.0:*:*:*:*:*:*:*
cpe:2.3:a:redhat:openstack_foreman:-:*:*:*:*:*:*:*
cpe:2.3:a:redhat:satellite:6.0:*:*:*:*:*:*:*
cpe:2.3:a:redhat:subscription_asset_manager:-:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_mrg:2.0:*:*:*:*:*:*:*

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CVE-2013-4335 — Critical (CVSS 9.8): opOpenSocialPlugin 0.8.2.1, > 0.9.9.2, 0.9.13, 1.2.6: Multiple XML External Entity Injection Vulnerabilities
CVE-2021-23926 — Critical (CVSS 9.1): The XML parsers used by XMLBeans up to version 2.6.0 did not set the properties needed to protect the user from…
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