apt-get in apt before 0.7.21 does not check for the correct error code from gpgv, which causes apt to treat a repository as valid even when it has been signed with a key that has been revoked or expired, which might allow remote attackers to trick apt into installing malicious repositories.
Conclusion & alert: CVE-2009-1358 is rated High Risk (74.5/100): CVSS Critical severity, with medium exploitation likelihood (EPSS 4.36%). Core evidence: EPSS rose +3.00% over the last day, indicating growing attacker interest. Mandatory action: High exploitation likelihood—assess exposure and prioritize 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 | 1.36% | 4.36% | +3.00% |
| 2 | 2025-03-30 | 2.53% | 1.36% | -1.16% |
| 3 | 2025-03-29 | — | 2.53% | — |
Full EPSS history (6 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 10.0 | 2.0 | HIGH |
|
10.0 | 10.0 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
not yet assigned | CVE-2009-1358 not yet assigned priority: Debian including 1 source packages (apt), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. | https://security-tracker.debian.org/tracker/CVE-2009-1358 |
redhat
|
high | — | https://access.redhat.com/security/cve/CVE-2009-1358 |
ubuntu
|
medium | CVE-2009-1358 medium priority: Ubuntu including 1 source packages (apt), 4 status rows across 4 suites (dapper, hardy, intrepid, upstream): released 4. | https://ubuntu.com/security/CVE-2009-1358 |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| debian | advanced_package_tool | <= 0.7.20 | cpe:2.3:a:debian:advanced_package_tool:*:*:*:*:*:*:*:* |
| debian | advanced_package_tool | 0.7.0 | cpe:2.3:a:debian:advanced_package_tool:0.7.0:*:*:*:*:*:*:* |
| debian | advanced_package_tool | 0.7.1 | cpe:2.3:a:debian:advanced_package_tool:0.7.1:*:*:*:*:*:*:* |
| debian | advanced_package_tool | 0.7.2 | cpe:2.3:a:debian:advanced_package_tool:0.7.2:*:*:*:*:*:*:* |
| debian | advanced_package_tool | 0.7.2-0.1 | cpe:2.3:a:debian:advanced_package_tool:0.7.2-0.1:*:*:*:*:*:*:* |
| debian | advanced_package_tool | 0.7.10 | cpe:2.3:a:debian:advanced_package_tool:0.7.10:*:*:*:*:*:*:* |
| debian | advanced_package_tool | 0.7.11 | cpe:2.3:a:debian:advanced_package_tool:0.7.11:*:*:*:*:*:*:* |
| debian | advanced_package_tool | 0.7.12 | cpe:2.3:a:debian:advanced_package_tool:0.7.12:*:*:*:*:*:*:* |
| debian | advanced_package_tool | 0.7.13 | cpe:2.3:a:debian:advanced_package_tool:0.7.13:*:*:*:*:*:*:* |
| debian | advanced_package_tool | 0.7.14 | cpe:2.3:a:debian:advanced_package_tool:0.7.14:*:*:*:*:*:*:* |
| debian | advanced_package_tool | 0.7.15 | cpe:2.3:a:debian:advanced_package_tool:0.7.15:*:*:*:*:*:*:* |
| debian | advanced_package_tool | 0.7.15 | cpe:2.3:a:debian:advanced_package_tool:0.7.15:exp1:*:*:*:*:*:* |
| debian | advanced_package_tool | 0.7.15 | cpe:2.3:a:debian:advanced_package_tool:0.7.15:exp2:*:*:*:*:*:* |
| debian | advanced_package_tool | 0.7.15 | cpe:2.3:a:debian:advanced_package_tool:0.7.15:exp3:*:*:*:*:*:* |
| debian | advanced_package_tool | 0.7.16 | cpe:2.3:a:debian:advanced_package_tool:0.7.16:*:*:*:*:*:*:* |
| debian | advanced_package_tool | 0.7.17 | cpe:2.3:a:debian:advanced_package_tool:0.7.17:*:*:*:*:*:*:* |
| debian | advanced_package_tool | 0.7.17 | cpe:2.3:a:debian:advanced_package_tool:0.7.17:exp1:*:*:*:*:*:* |
| debian | advanced_package_tool | 0.7.17 | cpe:2.3:a:debian:advanced_package_tool:0.7.17:exp2:*:*:*:*:*:* |
| debian | advanced_package_tool | 0.7.17 | cpe:2.3:a:debian:advanced_package_tool:0.7.17:exp3:*:*:*:*:*:* |
| debian | advanced_package_tool | 0.7.17 | cpe:2.3:a:debian:advanced_package_tool:0.7.17:exp4:*:*:*:*:*:* |
| debian | advanced_package_tool | 0.7.18 | cpe:2.3:a:debian:advanced_package_tool:0.7.18:*:*:*:*:*:*:* |
| debian | advanced_package_tool | 0.7.19 | cpe:2.3:a:debian:advanced_package_tool:0.7.19:*:*:*:*:*:*:* |
| debian | advanced_package_tool | 0.7.20.1 | cpe:2.3:a:debian:advanced_package_tool:0.7.20.1:*:*:*:*:*:*:* |
| debian | advanced_package_tool | 0.7.20.2 | cpe:2.3:a:debian:advanced_package_tool:0.7.20.2:*:*:*:*:*:*:* |
| debian | advanced_package_tool | 0.7.21 | cpe:2.3:a:debian:advanced_package_tool:0.7.21:*:*:*:*:*:*:* |
| debian | apt | 0.0.1 | cpe:2.3:a:debian:apt:0.0.1:*:*:*:*:*:*:* |
| debian | apt | 0.0.2 | cpe:2.3:a:debian:apt:0.0.2:*:*:*:*:*:*:* |
| debian | apt | 0.0.3 | cpe:2.3:a:debian:apt:0.0.3:*:*:*:*:*:*:* |
| debian | apt | 0.0.4 | cpe:2.3:a:debian:apt:0.0.4:*:*:*:*:*:*:* |
| debian | apt | 0.0.5 | cpe:2.3:a:debian:apt:0.0.5:*:*:*:*:*:*:* |
| debian | apt | 0.0.6 | cpe:2.3:a:debian:apt:0.0.6:*:*:*:*:*:*:* |
| debian | apt | 0.0.7 | cpe:2.3:a:debian:apt:0.0.7:*:*:*:*:*:*:* |
| debian | apt | 0.0.8 | cpe:2.3:a:debian:apt:0.0.8:*:*:*:*:*:*:* |
| debian | apt | 0.0.9 | cpe:2.3:a:debian:apt:0.0.9:*:*:*:*:*:*:* |
| debian | apt | 0.0.10 | cpe:2.3:a:debian:apt:0.0.10:*:*:*:*:*:*:* |
| debian | apt | 0.0.11 | cpe:2.3:a:debian:apt:0.0.11:*:*:*:*:*:*:* |
| debian | apt | 0.0.12 | cpe:2.3:a:debian:apt:0.0.12:*:*:*:*:*:*:* |
| debian | apt | 0.0.13 | cpe:2.3:a:debian:apt:0.0.13:*:*:*:*:*:*:* |
| debian | apt | 0.0.13-bo1 | cpe:2.3:a:debian:apt:0.0.13-bo1:*:*:*:*:*:*:* |
| debian | apt | 0.0.14 | cpe:2.3:a:debian:apt:0.0.14:*:*:*:*:*:*:* |
| debian | apt | 0.0.15 | cpe:2.3:a:debian:apt:0.0.15:*:*:*:*:*:*:* |
| debian | apt | 0.0.15-0.1bo | cpe:2.3:a:debian:apt:0.0.15-0.1bo:*:*:*:*:*:*:* |
| debian | apt | 0.0.15-0.2bo | cpe:2.3:a:debian:apt:0.0.15-0.2bo:*:*:*:*:*:*:* |
| debian | apt | 0.0.16-1 | cpe:2.3:a:debian:apt:0.0.16-1:*:*:*:*:*:*:* |
| debian | apt | 0.0.17-1 | cpe:2.3:a:debian:apt:0.0.17-1:*:*:*:*:*:*:* |
| debian | apt | 0.1 | cpe:2.3:a:debian:apt:0.1:*:*:*:*:*:*:* |
| debian | apt | 0.1.1 | cpe:2.3:a:debian:apt:0.1.1:*:*:*:*:*:*:* |
| debian | apt | 0.1.3 | cpe:2.3:a:debian:apt:0.1.3:*:*:*:*:*:*:* |
| debian | apt | 0.1.5 | cpe:2.3:a:debian:apt:0.1.5:*:*:*:*:*:*:* |
| debian | apt | 0.1.6 | cpe:2.3:a:debian:apt:0.1.6:*:*:*:*:*:*:* |
| debian | apt | 0.1.7 | cpe:2.3:a:debian:apt:0.1.7:*:*:*:*:*:*:* |
| debian | apt | 0.1.9 | cpe:2.3:a:debian:apt:0.1.9:*:*:*:*:*:*:* |
| debian | apt | 0.3.0 | cpe:2.3:a:debian:apt:0.3.0:*:*:*:*:*:*:* |
| debian | apt | 0.3.1 | cpe:2.3:a:debian:apt:0.3.1:*:*:*:*:*:*:* |
| debian | apt | 0.3.2 | cpe:2.3:a:debian:apt:0.3.2:*:*:*:*:*:*:* |
| debian | apt | 0.3.3 | cpe:2.3:a:debian:apt:0.3.3:*:*:*:*:*:*:* |
| debian | apt | 0.3.4 | cpe:2.3:a:debian:apt:0.3.4:*:*:*:*:*:*:* |
| debian | apt | 0.3.6 | cpe:2.3:a:debian:apt:0.3.6:*:*:*:*:*:*:* |
| debian | apt | 0.3.7 | cpe:2.3:a:debian:apt:0.3.7:*:*:*:*:*:*:* |
| debian | apt | 0.3.9 | cpe:2.3:a:debian:apt:0.3.9:*:*:*:*:*:*:* |
| debian | apt | 0.3.11 | cpe:2.3:a:debian:apt:0.3.11:*:*:*:*:*:*:* |
| debian | apt | 0.3.12 | cpe:2.3:a:debian:apt:0.3.12:*:*:*:*:*:*:* |
| debian | apt | 0.3.13 | cpe:2.3:a:debian:apt:0.3.13:*:*:*:*:*:*:* |
| debian | apt | 0.3.14 | cpe:2.3:a:debian:apt:0.3.14:*:*:*:*:*:*:* |
| debian | apt | 0.3.15 | cpe:2.3:a:debian:apt:0.3.15:*:*:*:*:*:*:* |
| debian | apt | 0.3.16 | cpe:2.3:a:debian:apt:0.3.16:*:*:*:*:*:*:* |
| debian | apt | 0.3.17 | cpe:2.3:a:debian:apt:0.3.17:*:*:*:*:*:*:* |
| debian | apt | 0.3.18 | cpe:2.3:a:debian:apt:0.3.18:*:*:*:*:*:*:* |
| debian | apt | 0.3.19 | cpe:2.3:a:debian:apt:0.3.19:*:*:*:*:*:*:* |
| debian | apt | 0.5.0 | cpe:2.3:a:debian:apt:0.5.0:*:*:*:*:*:*:* |
| debian | apt | 0.5.1 | cpe:2.3:a:debian:apt:0.5.1:*:*:*:*:*:*:* |
| debian | apt | 0.5.2 | cpe:2.3:a:debian:apt:0.5.2:*:*:*:*:*:*:* |
| debian | apt | 0.5.3 | cpe:2.3:a:debian:apt:0.5.3:*:*:*:*:*:*:* |
| debian | apt | 0.5.4 | cpe:2.3:a:debian:apt:0.5.4:*:*:*:*:*:*:* |
| debian | apt | 0.5.5 | cpe:2.3:a:debian:apt:0.5.5:*:*:*:*:*:*:* |
| debian | apt | 0.5.5.1 | cpe:2.3:a:debian:apt:0.5.5.1:*:*:*:*:*:*:* |
| debian | apt | 0.5.6 | cpe:2.3:a:debian:apt:0.5.6:*:*:*:*:*:*:* |
| debian | apt | 0.5.7 | cpe:2.3:a:debian:apt:0.5.7:*:*:*:*:*:*:* |
| debian | apt | 0.5.8 | cpe:2.3:a:debian:apt:0.5.8:*:*:*:*:*:*:* |
| debian | apt | 0.5.9 | cpe:2.3:a:debian:apt:0.5.9:*:*:*:*:*:*:* |