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CVE-2017-2773

31
FAUCET Score

CVE-2017-2773 describes a critical vulnerability in Pivotal PCF Elastic Runtime versions 1.6.x, 1.7.x, 1.8.x, and 1.9.x, stemming from incomplete validation logic in JSON Web Token (JWT) libraries. This flaw allows unprivileged attackers to impersonate other users across multiple components within the affected runtime environments. With a CVSS score of 9.8 (CRITICAL), this vulnerability is easily exploitable over the network with low attack complexity, enabling full compromise of confidentiality, integrity, and availability. There is currently no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
1.6.0CPE matchmatch criteria
cpe:2.3:a:pivotal_software:cloud_foundry_elastic_runtime:1.6.0:*:*:*:*:*:*:*
1.6.1CPE matchmatch criteria
cpe:2.3:a:pivotal_software:cloud_foundry_elastic_runtime:1.6.1:*:*:*:*:*:*:*
1.6.2CPE matchmatch criteria
cpe:2.3:a:pivotal_software:cloud_foundry_elastic_runtime:1.6.2:*:*:*:*:*:*:*
1.6.3CPE matchmatch criteria
cpe:2.3:a:pivotal_software:cloud_foundry_elastic_runtime:1.6.3:*:*:*:*:*:*:*
1.6.4CPE matchmatch criteria
cpe:2.3:a:pivotal_software:cloud_foundry_elastic_runtime:1.6.4:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

9.8CRITICAL

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
2.13%
Probability of exploitation in next 30 days
EPSS Percentile
80.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0213 is in the 69th percentile among its peer group of 36,862 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

pivotal.io / security/cve-2017-2773
MitigationVendor Advisory
securityfocus.com / bid/97135
Third Party AdvisoryVDB Entry