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CVE-2017-8447

21
FAUCET Score

CVE-2017-8447 describes a privilege enforcement error in Elastic X-Pack Security versions 5.3.0 to 5.5.2. An authenticated user with 'delete' or 'index' permissions on a specific index could bypass intended restrictions and perform both delete and index operations on that index. This vulnerability carries a CVSS score of 6.5 (Medium), indicating a low attack complexity and high impact on integrity, but no impact on confidentiality or availability. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
5.3.0CPE matchmatch criteria
cpe:2.3:a:elastic:x-pack:5.3.0:*:*:*:*:*:*:*
5.3.1CPE matchmatch criteria
cpe:2.3:a:elastic:x-pack:5.3.1:*:*:*:*:*:*:*
5.3.2CPE matchmatch criteria
cpe:2.3:a:elastic:x-pack:5.3.2:*:*:*:*:*:*:*
5.3.3CPE matchmatch criteria
cpe:2.3:a:elastic:x-pack:5.3.3:*:*:*:*:*:*:*
5.4.0CPE matchmatch criteria
cpe:2.3:a:elastic:x-pack:5.4.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

6.5MEDIUM

CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
NONE
Exploitability Score
2.8
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
0.61%
Probability of exploitation in next 30 days
EPSS Percentile
45.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-23
Model: v2026.06.15
This CVE's current EPSS score of 0.0061 is in the 56th percentile among its peer group of 21,939 CVEs.

Social Chatter

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

discuss.elastic.co / t/x-pack-security-5-6-0-and-5-5-3-security-update/100089
MitigationVendor Advisory