The bdfReadProperties function in bitmap/bdfread.c in X.Org libXfont before 1.4.9 and 1.5.x before 1.5.1 allows remote authenticated users to cause a denial of service (out-of-bounds write and crash) or possibly execute arbitrary code via a (1) negative or (2) large property count in a BDF font file.
Conclusion & alert: CVE-2015-1802 is rated Moderate Risk (64.2/100): CVSS High severity, with medium exploitation likelihood (EPSS 2.29%). 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 | 2026-05-13 | 1.76% | 2.29% | +0.53% |
| 2 | 2026-03-03 | 1.74% | 1.76% | +0.02% |
| 3 | 2025-12-28 | — | 1.74% | — |
Full EPSS history (14 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 8.5 | 2.0 | HIGH |
|
6.8 | 10.0 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
not yet assigned | CVE-2015-1802 not yet assigned priority: Debian including 1 source packages (libxfont), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. | https://security-tracker.debian.org/tracker/CVE-2015-1802 |
gentoo
|
normal | CVE-2015-1802: 1 GLSA(s) (201507-21), 1 atom(s) (x11-libs/libXfont); latest impact normal. | https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2015-1802 |
redhat
|
high | — | https://access.redhat.com/security/cve/CVE-2015-1802 |
ubuntu
|
medium | CVE-2015-1802 medium priority: Ubuntu including 1 source packages (libxfont), 5 status rows across 5 suites (lucid, precise, trusty, upstream, utopic): released 5. | https://ubuntu.com/security/CVE-2015-1802 |