CVE-2009-1358

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error code from gpgv, which causes apt to treat a repository as valid even when it has been signed with a key that has been revoked or expired, which might allow remote attackers to trick apt into installing malicious repositories.

Published: 2009-04-21 Last update: 2026-04-23 Assigner: [email protected] Source: [email protected]

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.

Exploit prediction scoring system (EPSS) score for CVE-2009-1358

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)

Common vulnerability scoring system (CVSS) metrics for CVE-2009-1358

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
10.0 2.0 HIGH
AV:N/AC:L/Au:N/C:C/I:C/A:C Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:C)
Complete confidentiality impact.
Integrity impact (I:C)
Complete integrity impact.
Availability impact (A:C)
Complete availability impact.
10.0 10.0 [email protected]

Weakness enumeration for CVE-2009-1358

OS Trackers for CVE-2009-1358

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

Affected software / configurations for 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:*:*:*:*:*:*:*

References for CVE-2009-1358

cvelogic Threat Intelligence