There is an invalid memory access in the function GfxIndexedColorSpace::mapColorToBase() located in GfxState.cc in Xpdf 4.0.0, as used in pdfalto 0.2. It can be triggered by (for example) sending a crafted pdf file to the pdftops binary. It allows an attacker to cause Denial of Service (Segmentation fault) or possibly have unspecified other impact.
Conclusion & alert: CVE-2019-9878 is rated High Exploit Risk (69.5/100): CVSS High severity, with medium exploitation likelihood (EPSS 1.20%). 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 | 2026-06-15 | 0.31% | 1.20% | +0.89% |
| 2 | 2026-02-19 | 0.23% | 0.31% | +0.08% |
| 3 | 2025-03-30 | — | 0.23% | — |
Full EPSS history (10 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 7.8 | 3.0 | HIGH |
|
1.8 | 5.9 | [email protected] |
| 6.8 | 2.0 | MEDIUM |
|
8.6 | 6.4 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
unimportant | CVE-2019-9878 unimportant priority: Debian including 1 source packages (xpdf), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. | https://security-tracker.debian.org/tracker/CVE-2019-9878 |
suse
|
low | CVE-2019-9878 severity low: SUSE including 1 source package names (xpdf), 1 product×package rows across 1 product lines (SUSE Linux Enterprise Server 11 SP1 for Teradata): Known Not Affected 1. | https://www.suse.com/security/cve/CVE-2019-9878/ |
ubuntu
|
medium | CVE-2019-9878 medium priority: Ubuntu including 4 source packages (ipe, libextractor, poppler, xpdf), 56 status rows across 14 suites (bionic, cosmic, disco, eoan, focal, groovy, hirsute, impish, jammy, kinetic, lunar, trusty, upstream, xenial): not-affected 40, ignored 7, DNE 5, needs-triage 4. | https://ubuntu.com/security/CVE-2019-9878 |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| pdfalto_project | pdfalto | 0.2 | cpe:2.3:a:pdfalto_project:pdfalto:0.2:*:*:*:*:*:*:* |
| xpdfreader | xpdf | 4.0.0 | cpe:2.3:a:xpdfreader:xpdf:4.0.0:*:*:*:*:*:*:* |
| URL | Tags |
|---|---|
| https://github.com/kermitt2/pdfalto/issues/46 | Third Party Advisory |
| https://research.loginsoft.com/bugs/invalid-memory-access-in-gfxindexedcolorspacemapcolortobase-pdfalto-0-2/ | Exploit Third Party Advisory |