Integer overflow in the pango_glyph_string_set_size function in pango/glyphstring.c in Pango before 1.24 allows context-dependent attackers to cause a denial of service (application crash) or possibly execute arbitrary code via a long glyph string that triggers a heap-based buffer overflow, as demonstrated by a long document.location value in Firefox.
Conclusion & alert: CVE-2009-1194 is rated High Exploit Risk (71.1/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 4.85%). Core evidence: 1 public exploit reference(s) are indexed (Exploit-DB). Mandatory action: Public exploits are available—assess exposure, apply mitigations, and prioritize patching.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
| EDB-ID | Source | Kind | Published | Link |
|---|---|---|---|---|
| — | nvd_ref | exploit_tag | Exploit-DB ↗ |
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 | 2025-03-30 | 6.89% | 4.85% | -2.04% |
| 2 | 2025-03-29 | 4.85% | 6.89% | +2.04% |
| 3 | 2025-03-17 | — | 4.85% | — |
Full EPSS history (10 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 6.8 | 2.0 | MEDIUM |
|
8.6 | 6.4 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
medium | CVE-2009-1194 medium priority: Debian including 1 source packages (pango1.0), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. | https://security-tracker.debian.org/tracker/CVE-2009-1194 |
gentoo
|
normal | CVE-2009-1194: 1 GLSA(s) (201405-13), 1 atom(s) (x11-libs/pango); latest impact normal. | https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2009-1194 |
redhat
|
high | — | https://access.redhat.com/security/cve/CVE-2009-1194 |
ubuntu
|
medium | CVE-2009-1194 medium priority: Ubuntu including 1 source packages (pango1.0), 5 status rows across 5 suites (dapper, hardy, intrepid, jaunty, upstream): released 4, not-affected 1. | https://ubuntu.com/security/CVE-2009-1194 |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| pango | pango | <= 1.22 | cpe:2.3:a:pango:pango:*:*:*:*:*:*:*:* |
| pango | pango | 1.2 | cpe:2.3:a:pango:pango:1.2:*:*:*:*:*:*:* |
| pango | pango | 1.4 | cpe:2.3:a:pango:pango:1.4:*:*:*:*:*:*:* |
| pango | pango | 1.6 | cpe:2.3:a:pango:pango:1.6:*:*:*:*:*:*:* |
| pango | pango | 1.8 | cpe:2.3:a:pango:pango:1.8:*:*:*:*:*:*:* |
| pango | pango | 1.10 | cpe:2.3:a:pango:pango:1.10:*:*:*:*:*:*:* |
| pango | pango | 1.12 | cpe:2.3:a:pango:pango:1.12:*:*:*:*:*:*:* |
| pango | pango | 1.14 | cpe:2.3:a:pango:pango:1.14:*:*:*:*:*:*:* |
| pango | pango | 1.16 | cpe:2.3:a:pango:pango:1.16:*:*:*:*:*:*:* |
| pango | pango | 1.18 | cpe:2.3:a:pango:pango:1.18:*:*:*:*:*:*:* |
| pango | pango | 1.20 | cpe:2.3:a:pango:pango:1.20:*:*:*:*:*:*:* |