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CVE-2017-4970

19
FAUCET Score

CVE-2017-4970 is a medium-severity vulnerability affecting Cloud Foundry cf-release v255 and Staticfile buildpack versions v1.4.0-v1.4.3. A regression in the Staticfile buildpack caused basic authentication to be disabled for misconfigured applications that had a Staticfile.auth file but lacked a Staticfile in the application root. This vulnerability has a CVSS score of 5.9, indicating a network-based attack with high impact to integrity and high attack complexity. There is no known active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
255CPE matchmatch criteria
cpe:2.3:a:cloudfoundry:cf-release:255:*:*:*:*:*:*:*
1.4.0CPE matchmatch criteria
cpe:2.3:a:cloudfoundry:staticfile_buildpack:1.4.0:*:*:*:*:*:*:*
1.4.1CPE matchmatch criteria
cpe:2.3:a:cloudfoundry:staticfile_buildpack:1.4.1:*:*:*:*:*:*:*
1.4.2CPE matchmatch criteria
cpe:2.3:a:cloudfoundry:staticfile_buildpack:1.4.2:*:*:*:*:*:*:*
1.4.3CPE matchmatch criteria
cpe:2.3:a:cloudfoundry:staticfile_buildpack:1.4.3:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

5.9MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
NONE
Exploitability Score
2.2
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
0.69%
Probability of exploitation in next 30 days
EPSS Percentile
49.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0069 is in the 9th percentile among its peer group of 19,955 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.2 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

cloudfoundry.org / cve-2017-4970
MitigationVendor Advisory