The apt-add-repository tool in Ubuntu Software Properties 0.75.x before 0.75.10.3, 0.80.x before 0.80.9.2, 0.81.x before 0.81.13.5, 0.82.x before 0.82.7.3, and 0.92.x before 0.92.8 does not properly check PPA GPG keys imported from a keyserver, which allows remote attackers to install arbitrary package repository GPG keys via a man-in-the-middle (MITM) attack.
Conclusion & alert: CVE-2012-5356 is rated Moderate Risk (51.7/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 1.97%). Core evidence: EPSS rose +1.30% over the last day, indicating growing attacker interest. Mandatory action: Review affected assets and schedule remediation.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2026-06-15 | 0.67% | 1.97% | +1.30% |
| 2 | 2025-03-17 | 0.21% | 0.67% | +0.46% |
| 3 | 2023-03-07 | — | 0.21% | — |
Full EPSS history (4 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 5.8 | 2.0 | MEDIUM |
|
8.6 | 4.9 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
ubuntu
|
medium | CVE-2012-5356 medium priority: Ubuntu including 1 source packages (software-properties), 6 status rows across 6 suites (hardy, lucid, natty, oneiric, precise, upstream): released 4, ignored 1, needs-triage 1. | https://ubuntu.com/security/CVE-2012-5356 |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| canonical | ubuntu_software_properties | 0.75.4 | cpe:2.3:a:canonical:ubuntu_software_properties:0.75.4:*:*:*:*:*:*:* |
| canonical | ubuntu_software_properties | 0.75.5 | cpe:2.3:a:canonical:ubuntu_software_properties:0.75.5:*:*:*:*:*:*:* |
| canonical | ubuntu_software_properties | 0.75.6 | cpe:2.3:a:canonical:ubuntu_software_properties:0.75.6:*:*:*:*:*:*:* |
| canonical | ubuntu_software_properties | 0.75.7 | cpe:2.3:a:canonical:ubuntu_software_properties:0.75.7:*:*:*:*:*:*:* |
| canonical | ubuntu_software_properties | 0.75.8 | cpe:2.3:a:canonical:ubuntu_software_properties:0.75.8:*:*:*:*:*:*:* |
| canonical | ubuntu_software_properties | 0.75.9 | cpe:2.3:a:canonical:ubuntu_software_properties:0.75.9:*:*:*:*:*:*:* |
| canonical | ubuntu_software_properties | 0.75.10 | cpe:2.3:a:canonical:ubuntu_software_properties:0.75.10:*:*:*:*:*:*:* |
| canonical | ubuntu_software_properties | 0.75.10.1 | cpe:2.3:a:canonical:ubuntu_software_properties:0.75.10.1:*:*:*:*:*:*:* |
| canonical | ubuntu_software_properties | 0.75.10.2 | cpe:2.3:a:canonical:ubuntu_software_properties:0.75.10.2:*:*:*:*:*:*:* |
| canonical | ubuntu_software_properties | 0.80 | cpe:2.3:a:canonical:ubuntu_software_properties:0.80:*:*:*:*:*:*:* |
| canonical | ubuntu_software_properties | 0.80.2 | cpe:2.3:a:canonical:ubuntu_software_properties:0.80.2:*:*:*:*:*:*:* |
| canonical | ubuntu_software_properties | 0.80.3 | cpe:2.3:a:canonical:ubuntu_software_properties:0.80.3:*:*:*:*:*:*:* |
| canonical | ubuntu_software_properties | 0.80.4 | cpe:2.3:a:canonical:ubuntu_software_properties:0.80.4:*:*:*:*:*:*:* |
| canonical | ubuntu_software_properties | 0.80.5 | cpe:2.3:a:canonical:ubuntu_software_properties:0.80.5:*:*:*:*:*:*:* |
| canonical | ubuntu_software_properties | 0.80.6 | cpe:2.3:a:canonical:ubuntu_software_properties:0.80.6:*:*:*:*:*:*:* |
| canonical | ubuntu_software_properties | 0.80.7 | cpe:2.3:a:canonical:ubuntu_software_properties:0.80.7:*:*:*:*:*:*:* |
| canonical | ubuntu_software_properties | 0.80.8 | cpe:2.3:a:canonical:ubuntu_software_properties:0.80.8:*:*:*:*:*:*:* |
| canonical | ubuntu_software_properties | 0.80.9 | cpe:2.3:a:canonical:ubuntu_software_properties:0.80.9:*:*:*:*:*:*:* |
| canonical | ubuntu_software_properties | 0.80.9.1 | cpe:2.3:a:canonical:ubuntu_software_properties:0.80.9.1:*:*:*:*:*:*:* |
| canonical | ubuntu_software_properties | 0.81 | cpe:2.3:a:canonical:ubuntu_software_properties:0.81:*:*:*:*:*:*:* |
| canonical | ubuntu_software_properties | 0.81.1 | cpe:2.3:a:canonical:ubuntu_software_properties:0.81.1:*:*:*:*:*:*:* |
| canonical | ubuntu_software_properties | 0.81.2 | cpe:2.3:a:canonical:ubuntu_software_properties:0.81.2:*:*:*:*:*:*:* |
| canonical | ubuntu_software_properties | 0.81.3 | cpe:2.3:a:canonical:ubuntu_software_properties:0.81.3:*:*:*:*:*:*:* |
| canonical | ubuntu_software_properties | 0.81.4 | cpe:2.3:a:canonical:ubuntu_software_properties:0.81.4:*:*:*:*:*:*:* |
| canonical | ubuntu_software_properties | 0.81.5 | cpe:2.3:a:canonical:ubuntu_software_properties:0.81.5:*:*:*:*:*:*:* |
| canonical | ubuntu_software_properties | 0.81.6 | cpe:2.3:a:canonical:ubuntu_software_properties:0.81.6:*:*:*:*:*:*:* |
| canonical | ubuntu_software_properties | 0.81.7 | cpe:2.3:a:canonical:ubuntu_software_properties:0.81.7:*:*:*:*:*:*:* |
| canonical | ubuntu_software_properties | 0.81.8 | cpe:2.3:a:canonical:ubuntu_software_properties:0.81.8:*:*:*:*:*:*:* |
| canonical | ubuntu_software_properties | 0.81.9 | cpe:2.3:a:canonical:ubuntu_software_properties:0.81.9:*:*:*:*:*:*:* |
| canonical | ubuntu_software_properties | 0.81.10 | cpe:2.3:a:canonical:ubuntu_software_properties:0.81.10:*:*:*:*:*:*:* |
| canonical | ubuntu_software_properties | 0.81.11 | cpe:2.3:a:canonical:ubuntu_software_properties:0.81.11:*:*:*:*:*:*:* |
| canonical | ubuntu_software_properties | 0.81.13 | cpe:2.3:a:canonical:ubuntu_software_properties:0.81.13:*:*:*:*:*:*:* |
| canonical | ubuntu_software_properties | 0.81.13.1 | cpe:2.3:a:canonical:ubuntu_software_properties:0.81.13.1:*:*:*:*:*:*:* |
| canonical | ubuntu_software_properties | 0.81.13.2 | cpe:2.3:a:canonical:ubuntu_software_properties:0.81.13.2:*:*:*:*:*:*:* |
| canonical | ubuntu_software_properties | 0.81.13.3 | cpe:2.3:a:canonical:ubuntu_software_properties:0.81.13.3:*:*:*:*:*:*:* |
| canonical | ubuntu_software_properties | 0.81.13.4 | cpe:2.3:a:canonical:ubuntu_software_properties:0.81.13.4:*:*:*:*:*:*:* |
| canonical | ubuntu_software_properties | 0.82 | cpe:2.3:a:canonical:ubuntu_software_properties:0.82:*:*:*:*:*:*:* |
| canonical | ubuntu_software_properties | 0.82.2 | cpe:2.3:a:canonical:ubuntu_software_properties:0.82.2:*:*:*:*:*:*:* |
| canonical | ubuntu_software_properties | 0.82.3 | cpe:2.3:a:canonical:ubuntu_software_properties:0.82.3:*:*:*:*:*:*:* |
| canonical | ubuntu_software_properties | 0.82.4 | cpe:2.3:a:canonical:ubuntu_software_properties:0.82.4:*:*:*:*:*:*:* |
| canonical | ubuntu_software_properties | 0.82.5 | cpe:2.3:a:canonical:ubuntu_software_properties:0.82.5:*:*:*:*:*:*:* |
| canonical | ubuntu_software_properties | 0.82.6 | cpe:2.3:a:canonical:ubuntu_software_properties:0.82.6:*:*:*:*:*:*:* |
| canonical | ubuntu_software_properties | 0.82.7 | cpe:2.3:a:canonical:ubuntu_software_properties:0.82.7:*:*:*:*:*:*:* |
| canonical | ubuntu_software_properties | 0.82.7.1 | cpe:2.3:a:canonical:ubuntu_software_properties:0.82.7.1:*:*:*:*:*:*:* |
| canonical | ubuntu_software_properties | 0.82.7.2 | cpe:2.3:a:canonical:ubuntu_software_properties:0.82.7.2:*:*:*:*:*:*:* |
| canonical | ubuntu_software_properties | 0.92 | cpe:2.3:a:canonical:ubuntu_software_properties:0.92:*:*:*:*:*:*:* |
| canonical | ubuntu_software_properties | 0.92.2 | cpe:2.3:a:canonical:ubuntu_software_properties:0.92.2:*:*:*:*:*:*:* |
| canonical | ubuntu_software_properties | 0.92.3 | cpe:2.3:a:canonical:ubuntu_software_properties:0.92.3:*:*:*:*:*:*:* |
| canonical | ubuntu_software_properties | 0.92.4 | cpe:2.3:a:canonical:ubuntu_software_properties:0.92.4:*:*:*:*:*:*:* |
| canonical | ubuntu_software_properties | 0.92.5 | cpe:2.3:a:canonical:ubuntu_software_properties:0.92.5:*:*:*:*:*:*:* |
| canonical | ubuntu_software_properties | 0.92.6 | cpe:2.3:a:canonical:ubuntu_software_properties:0.92.6:*:*:*:*:*:*:* |
| canonical | ubuntu_software_properties | 0.92.7 | cpe:2.3:a:canonical:ubuntu_software_properties:0.92.7:*:*:*:*:*:*:* |