A "stack overwrite" vulnerability in GnuPG (gpg) 1.x before 1.4.6, 2.x before 2.0.2, and 1.9.0 through 1.9.95 allows attackers to execute arbitrary code via crafted OpenPGP packets that cause GnuPG to dereference a function pointer from deallocated stack memory.
Conclusion & alert: CVE-2006-6235 is rated High Risk (72.6/100): CVSS Critical severity, with high exploitation likelihood (EPSS 8.90%, 92th percentile). Core evidence: EPSS ranks this CVE among the most likely to be exploited in the near term. 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 | 2025-07-26 | 8.58% | 8.90% | +0.32% |
| 2 | 2025-03-30 | 14.48% | 8.58% | -5.90% |
| 3 | 2025-03-29 | — | 14.48% | — |
Full EPSS history (14 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 |
|---|---|---|---|
alpine
|
— | CVE-2006-6235: no source package rows; 0 state rows across 0 repos (none); fixed 0, open 0. | https://security.alpinelinux.org/vuln/CVE-2006-6235 |
debian
|
high | CVE-2006-6235 high priority: Debian including 1 source packages (gnupg2), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. | https://security-tracker.debian.org/tracker/CVE-2006-6235 |
gentoo
|
normal | CVE-2006-6235: 1 GLSA(s) (200612-03), 1 atom(s) (app-crypt/gnupg); latest impact normal. | https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2006-6235 |
redhat
|
high | — | https://access.redhat.com/security/cve/CVE-2006-6235 |
ubuntu
|
medium | CVE-2006-6235 medium priority: Ubuntu including 2 source packages (gnupg, gnupg2), 18 status rows across 9 suites (dapper, edgy, feisty, gutsy, hardy, intrepid, jaunty, karmic, upstream): released 15, needs-triage 2, ignored 1. | https://ubuntu.com/security/CVE-2006-6235 |
Red Hat Enterprise Linux 5 is not vulnerable to this issue as it contains a backported patch.
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| gnu | privacy_guard | 1.2.4 | cpe:2.3:a:gnu:privacy_guard:1.2.4:*:*:*:*:*:*:* |
| gnu | privacy_guard | 1.2.5 | cpe:2.3:a:gnu:privacy_guard:1.2.5:*:*:*:*:*:*:* |
| gnu | privacy_guard | 1.2.6 | cpe:2.3:a:gnu:privacy_guard:1.2.6:*:*:*:*:*:*:* |
| gnu | privacy_guard | 1.2.7 | cpe:2.3:a:gnu:privacy_guard:1.2.7:*:*:*:*:*:*:* |
| gnu | privacy_guard | 1.3.3 | cpe:2.3:a:gnu:privacy_guard:1.3.3:*:*:*:*:*:*:* |
| gnu | privacy_guard | 1.3.4 | cpe:2.3:a:gnu:privacy_guard:1.3.4:*:*:*:*:*:*:* |
| gnu | privacy_guard | 1.4 | cpe:2.3:a:gnu:privacy_guard:1.4:*:*:*:*:*:*:* |
| gnu | privacy_guard | 1.4.1 | cpe:2.3:a:gnu:privacy_guard:1.4.1:*:*:*:*:*:*:* |
| gnu | privacy_guard | 1.4.2 | cpe:2.3:a:gnu:privacy_guard:1.4.2:*:*:*:*:*:*:* |
| gnu | privacy_guard | 1.4.2.1 | cpe:2.3:a:gnu:privacy_guard:1.4.2.1:*:*:*:*:*:*:* |
| gnu | privacy_guard | 1.4.2.2 | cpe:2.3:a:gnu:privacy_guard:1.4.2.2:*:*:*:*:*:*:* |
| gnu | privacy_guard | 1.4.3 | cpe:2.3:a:gnu:privacy_guard:1.4.3:*:*:*:*:*:*:* |
| gnu | privacy_guard | 1.4.4 | cpe:2.3:a:gnu:privacy_guard:1.4.4:*:*:*:*:*:*:* |
| gnu | privacy_guard | 1.4.5 | cpe:2.3:a:gnu:privacy_guard:1.4.5:*:*:*:*:*:*:* |
| gnu | privacy_guard | 1.9.10 | cpe:2.3:a:gnu:privacy_guard:1.9.10:*:*:*:*:*:*:* |
| gnu | privacy_guard | 1.9.15 | cpe:2.3:a:gnu:privacy_guard:1.9.15:*:*:*:*:*:*:* |
| gnu | privacy_guard | 1.9.20 | cpe:2.3:a:gnu:privacy_guard:1.9.20:*:*:*:*:*:*:* |
| gnu | privacy_guard | 2.0 | cpe:2.3:a:gnu:privacy_guard:2.0:*:*:*:*:*:*:* |
| gnu | privacy_guard | 2.0.1 | cpe:2.3:a:gnu:privacy_guard:2.0.1:*:*:*:*:*:*:* |
| gpg4win | gpg4win | 1.0.7 | cpe:2.3:a:gpg4win:gpg4win:1.0.7:*:*:*:*:*:*:* |
| redhat | enterprise_linux | 4.0 | cpe:2.3:o:redhat:enterprise_linux:4.0:*:advanced_server:*:*:*:*:* |
| redhat | enterprise_linux | 4.0 | cpe:2.3:o:redhat:enterprise_linux:4.0:*:enterprise_server:*:*:*:*:* |
| redhat | enterprise_linux | 4.0 | cpe:2.3:o:redhat:enterprise_linux:4.0:*:workstation:*:*:*:*:* |
| redhat | enterprise_linux_desktop | 3.0 | cpe:2.3:o:redhat:enterprise_linux_desktop:3.0:*:*:*:*:*:*:* |
| redhat | enterprise_linux_desktop | 4.0 | cpe:2.3:o:redhat:enterprise_linux_desktop:4.0:*:*:*:*:*:*:* |
| redhat | fedora_core | core_5.0 | cpe:2.3:o:redhat:fedora_core:core_5.0:*:*:*:*:*:*:* |
| redhat | fedora_core | core6 | cpe:2.3:o:redhat:fedora_core:core6:*:*:*:*:*:*:* |
| redhat | linux_advanced_workstation | 2.1 | cpe:2.3:o:redhat:linux_advanced_workstation:2.1:*:itanium_processor:*:*:*:*:* |
| rpath | linux | 1 | cpe:2.3:o:rpath:linux:1:*:*:*:*:*:*:* |
| slackware | slackware_linux | 11.0 | cpe:2.3:o:slackware:slackware_linux:11.0:*:*:*:*:*:*:* |
| ubuntu | ubuntu_linux | 5.10 | cpe:2.3:o:ubuntu:ubuntu_linux:5.10:*:*:*:*:*:*:* |
| ubuntu | ubuntu_linux | 6.06 | cpe:2.3:o:ubuntu:ubuntu_linux:6.06:*:*:*:*:*:*:* |