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Fencer Intel
low 2.1

CVE-2025-21085 json

PingFederate OAuth Grant attribute duplication may use excessive memory

published last yr. modified 4mo ago also EUVD-2025-18342

cvss
2.1
version 4.0, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.3%
EPSS 0.3% chance of exploitation in 30 days, percentile 27%
public exploits
0
none known

Summary

PingFederate OAuth2 grant duplication in PostgreSQL persistent storage allows OAuth2 requests to use excessive memory utilization.

Patch / fix

  • Ping Identity PingFederate 11.3.13, 12.0.9, 12.1.9, 12.2.4

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CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
last yr.

Exploit prediction

0.34% chance of exploitation in the next 30 days, higher than 27% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
CNA 4.0 2.1 CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:L/S:P/AU:Y/R:A/RE:L/U:Amber
CNA 4.0 2.1 CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:P/AU:Y/R:A/V:X/RE:L/U:Amber

Affected products

  • Ping Identity PingFederate

Classification

Weakness
  • CWE-462 Duplicate Key in Associative List (Alist)

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.