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CVE-2012-6612

28
FAUCET Score

CVE-2012-6612 describes an XML External Entity (XXE) vulnerability in Apache Solr versions prior to 4.1. This flaw allows remote attackers to achieve an unspecified impact by submitting specially crafted XML data containing external entity declarations and references through the UpdateRequestHandler for XSLT or the XPathEntityProcessor. With a CVSS score of 7.5, this vulnerability is considered highly severe due to its network-based attack vector, low access complexity, and potential for partial compromise of confidentiality, integrity, and availability. There is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 4.0.0CPE matchmatch criteria
cpe:2.3:a:apache:solr:*:*:*:*:*:*:*:*
4.0.0CPE matchmatch criteria
cpe:2.3:a:apache:solr:4.0.0:alpha:*:*:*:*:*:*
4.0.0CPE matchmatch criteria
cpe:2.3:a:apache:solr:4.0.0:beta:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

7.5HIGH

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

Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
6.4
CvssVersion
2.0

Exploit Intelligence

EPSS Score
10.08%
Probability of exploitation in next 30 days
EPSS Percentile
95.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.1008 is in the 92nd percentile among its peer group of 51,506 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (3)

mavenpatch availablevia ghsa
Product: org.apache.solr:solr-coreFixed in: 4.1.0
redhatpatch availablevia redhat_api
Product: Red Hat JBoss Data Grid 6.2Fixed in: solr
View patch
redhatpatch availablevia redhat_api
Product: Red Hat JBoss Web Framework Kit 2.4Fixed in: solr
View patch

Vendor Advisories (2)

mavenGHSA-6cpj-3g83-q2j4high

Improper Restriction of XML External Entity Reference in Apache Solr

May 17, 2022
redhatCVE-2012-6612Moderate

Solr: XML eXternal Entity (XXE) flaw in XML and XSLT UpdateRequestHandler

Sep 26, 2012

References

rhn.redhat.com / errata/RHSA-2013-1844.html
rhn.redhat.com / errata/RHSA-2014-0029.html
issues.apache.org / jira/browse/SOLR-3895
Patch
svn.apache.org / viewvc/lucene/dev/branches/branch_4x/solr/CHANGES.txt