Multiple buffer overflows in libpng 1.2.5 and earlier, as used in multiple products, allow remote attackers to execute arbitrary code via malformed PNG images in which (1) the png_handle_tRNS function does not properly validate the length of transparency chunk (tRNS) data, or the (2) png_handle_sBIT or (3) png_handle_hIST functions do not perform sufficient bounds checking.
Conclusion & alert: CVE-2004-0597 is rated High Exploit Risk (89/100): CVSS Critical severity, with high exploitation likelihood (EPSS 83.21%, 99th percentile). Core evidence: 5 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 |
|---|---|---|---|---|
| 25094 | exploit_db | edb | 2005-02-08 | Exploit-DB ↗ |
| 393 | exploit_db | edb | 2004-08-13 | Exploit-DB ↗ |
| 389 | exploit_db | edb | 2004-08-11 | Exploit-DB ↗ |
| — | nvd_ref | exploit_tag | Exploit-DB ↗ | |
| — | 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 | 2026-04-10 | 83.92% | 83.21% | -0.71% |
| 2 | 2026-04-01 | 85.09% | 83.92% | -1.17% |
| 3 | 2025-08-15 | — | 85.09% | — |
Full EPSS history (13 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 |
|---|---|---|---|
redhat
|
critical | — | https://access.redhat.com/security/cve/CVE-2004-0597 |
suse
|
high | — | https://www.suse.com/security/cve/CVE-2004-0597/ |
ubuntu
|
medium | CVE-2004-0597 medium priority: Ubuntu including 2 source packages (libpng, libpng3), 8 status rows across 4 suites (dapper, edgy, feisty, upstream): released 5, needs-triage 2, DNE 1. | https://ubuntu.com/security/CVE-2004-0597 |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| greg_roelofs | libpng | <= 1.2.5 | cpe:2.3:a:greg_roelofs:libpng:*:*:*:*:*:*:*:* |
| microsoft | msn_messenger | 6.1 | cpe:2.3:a:microsoft:msn_messenger:6.1:*:*:*:*:*:*:* |
| microsoft | msn_messenger | 6.2 | cpe:2.3:a:microsoft:msn_messenger:6.2:*:*:*:*:*:*:* |
| microsoft | windows_media_player | 9 | cpe:2.3:a:microsoft:windows_media_player:9:*:*:*:*:*:*:* |
| microsoft | windows_messenger | 5.0 | cpe:2.3:a:microsoft:windows_messenger:5.0:*:*:*:*:*:*:* |
| microsoft | windows_98se | — | cpe:2.3:o:microsoft:windows_98se:*:*:*:*:*:*:*:* |
| microsoft | windows_me | — | cpe:2.3:o:microsoft:windows_me:*:*:second_edition:*:*:*:*:* |