Red Hat Polkit Incorrect Authorization Vulnerability
Red Hat Polkit contains an incorrect authorization vulnerability through the bypassing of credential checks for D-Bus requests, allowing for privilege escalation.
- Vendor
- Red Hat
- Product
- Polkit
- CVSS
- 7.8
- EPSS (exploit probability)
- 23.7%
- Status
- kev
- CISA patch-by (BOD 22-01)
- Added to KEV
Is CVE-2021-3560 being exploited?
Yes. CISA added CVE-2021-3560 to its Known Exploited Vulnerabilities catalog on . CISA only lists a CVE when it has reliable evidence of exploitation in the wild.
FIRST's EPSS model puts the probability of exploitation activity in the next 30 days at 23.7% (scored October 14, 2026).
- CISA KEV[ LISTED ]
- ENISA EUVD (exploited)[ — ]
- CIRCL KEV[ — ]
Catalog snapshot 2026-10-23. Full cross-catalog view: /kev-comparison
CVE-2021-3560 timeline
Every event links to its source. Catalog dates are each catalog's own; day offsets count from NVD publication. Data: JSON
What to do
CISA required actionApply updates per vendor instructions.
US federal civilian agencies must remediate by (21 days after listing) under BOD 22-01. Everyone else: that deadline is a sensible upper bound, not a target. Vendor guidance and the NVD record are linked under Source above.
Other Red Hat CVEs we track
| CVE / Vulnerability | Severity | CVSS | EPSS | Added to KEV |
|---|---|---|---|---|
| CVE-2026-94218 Keycloak session enforcement bypass on policy upgradewrite-up | [ LOW ] | 3.1 | 0.3% | — |
| CVE-2026-94217 Keycloak UMA token endpoint resource ownership confusionwrite-up | [ LOW ] | 3.5 | 0.2% | — |
| CVE-2026-94215 Keycloak Admin REST API client cache flawwrite-up | [ MEDIUM ] | 5.5 | 0.3% | — |
| CVE-2026-94213 Keycloak authorization policy evaluation exposes permissionswrite-up | [ MEDIUM ] | 4.9 | 0.4% | — |
| CVE-2015-5287 Red Hat Automatic Bug Reporting Tool Privilege Escalation Vulnerability | [ MEDIUM ] | 6.9 | 5.0% | |
| CVE-2015-3246 Red Hat Libuser Race Condition Vulnerability | [ HIGH ] | 7.2 | 8.5% | |
| CVE-2018-14667 Red Hat JBoss RichFaces Framework Expression Language Injection Vulnerability | [ CRITICAL ] | 9.8 | 74.2% | |
| CVE-2021-4034 Red Hat Polkit Out-of-Bounds Read and Write Vulnerabilityransomware use | [ HIGH ] | 7.8 | 94.9% |