Buffer overflow in the png_decompress_chunk function in pngrutil.c in libpng before 1.2.12 allows context-dependent attackers to cause a denial of service and possibly execute arbitrary code via unspecified vectors related to "chunk error processing," possibly involving the "chunk_name".
Conclusion & alert: CVE-2006-3334 is rated Moderate Risk (63.4/100): CVSS High severity, with medium exploitation likelihood (EPSS 3.98%). Core evidence: EPSS rose +2.22% over the last day, indicating growing attacker interest. Mandatory action: Review affected assets and schedule 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 | 1.75% | 3.98% | +2.22% |
| 2 | 2025-03-30 | 2.59% | 1.75% | -0.84% |
| 3 | 2025-03-29 | — | 2.59% | — |
Full EPSS history (8 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 7.5 | 2.0 | HIGH |
|
10.0 | 6.4 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
gentoo
|
normal | CVE-2006-3334: 2 GLSA(s) (200607-06, 200812-15), 3 atom(s) (app-emulation/emul-linux-x86-baselibs, media-gfx/povray, media-libs/libpng); latest impact normal. | https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2006-3334 |
redhat
|
— | — | https://access.redhat.com/security/cve/CVE-2006-3334 |
ubuntu
|
medium | CVE-2006-3334 medium priority: Ubuntu including 2 source packages (libpng, libpng3), 8 status rows across 4 suites (dapper, edgy, feisty, upstream): not-affected 5, needs-triage 2, DNE 1. | https://ubuntu.com/security/CVE-2006-3334 |
: Upgrade to 1.2.12
On Red Hat Enterprise Linux 2.1, 3, 4, and 5 this is a two-byte overflow into the middle of the stack and is not exploitable.
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| greg_roelofs | libpng | <= 1.2.11 | cpe:2.3:a:greg_roelofs:libpng:*:*:*:*:*:*:*:* |
| greg_roelofs | libpng | 1.2.0 | cpe:2.3:a:greg_roelofs:libpng:1.2.0:*:*:*:*:*:*:* |
| greg_roelofs | libpng | 1.2.1 | cpe:2.3:a:greg_roelofs:libpng:1.2.1:*:*:*:*:*:*:* |
| greg_roelofs | libpng | 1.2.2 | cpe:2.3:a:greg_roelofs:libpng:1.2.2:*:*:*:*:*:*:* |
| greg_roelofs | libpng | 1.2.3 | cpe:2.3:a:greg_roelofs:libpng:1.2.3:*:*:*:*:*:*:* |
| greg_roelofs | libpng | 1.2.4 | cpe:2.3:a:greg_roelofs:libpng:1.2.4:*:*:*:*:*:*:* |
| greg_roelofs | libpng | 1.2.5 | cpe:2.3:a:greg_roelofs:libpng:1.2.5:*:*:*:*:*:*:* |
| greg_roelofs | libpng | 1.2.6 | cpe:2.3:a:greg_roelofs:libpng:1.2.6:*:*:*:*:*:*:* |
| greg_roelofs | libpng | 1.2.7 | cpe:2.3:a:greg_roelofs:libpng:1.2.7:*:*:*:*:*:*:* |
| greg_roelofs | libpng | 1.2.7rc1 | cpe:2.3:a:greg_roelofs:libpng:1.2.7rc1:*:*:*:*:*:*:* |
| greg_roelofs | libpng | 1.2.8 | cpe:2.3:a:greg_roelofs:libpng:1.2.8:*:*:*:*:*:*:* |
| greg_roelofs | libpng | 1.2.9 | cpe:2.3:a:greg_roelofs:libpng:1.2.9:*:*:*:*:*:*:* |
| greg_roelofs | libpng | 1.2.10 | cpe:2.3:a:greg_roelofs:libpng:1.2.10:*:*:*:*:*:*:* |