The LZW decompressor in (1) the BufCompressedFill function in fontfile/decompress.c in X.Org libXfont before 1.4.4 and (2) compress/compress.c in 4.3BSD, as used in zopen.c in OpenBSD before 3.8, FreeBSD, NetBSD 4.0.x and 5.0.x before 5.0.3 and 5.1.x before 5.1.1, FreeType 2.1.9, and other products, does not properly handle code words that are absent from the decompression table when encountered, which allows context-dependent attackers to trigger an infinite loop or a heap-based buffer overflow, and possibly execute arbitrary code, via a crafted compressed stream, a related issue to CVE-2006-1168 and CVE-2011-2896.
Conclusion & alert: CVE-2011-2895 is rated High Risk (71.5/100): CVSS Critical severity, with high exploitation likelihood (EPSS 8.36%, 94th percentile). Core evidence: EPSS ranks this CVE among the most likely to be exploited in the near term. EPSS rose +1.34% over the last day, indicating growing attacker interest. Mandatory action: High exploitation likelihood—assess exposure and prioritize 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 | 7.02% | 8.36% | +1.34% |
| 2 | 2026-02-05 | 7.20% | 7.02% | -0.18% |
| 3 | 2026-01-23 | — | 7.20% | — |
Full EPSS history (18 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 9.3 | 2.0 | HIGH |
|
8.6 | 10.0 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
not yet assigned | CVE-2011-2895 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-2011-2895 |
gentoo
|
high | CVE-2011-2895: 1 GLSA(s) (201402-23), 1 atom(s) (x11-libs/libXfont); latest impact high. | https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2011-2895 |
redhat
|
high | — | https://access.redhat.com/security/cve/CVE-2011-2895 |
ubuntu
|
medium | CVE-2011-2895 medium priority: Ubuntu including 1 source packages (libxfont), 5 status rows across 5 suites (hardy, lucid, maverick, natty, upstream): released 4, ignored 1. | https://ubuntu.com/security/CVE-2011-2895 |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| freetype | freetype | 2.1.9 | cpe:2.3:a:freetype:freetype:2.1.9:*:*:*:*:*:*:* |
| x | libxfont | <= 1.4.3 | cpe:2.3:a:x:libxfont:*:*:*:*:*:*:*:* |
| x | libxfont | 1.2.0 | cpe:2.3:a:x:libxfont:1.2.0:*:*:*:*:*:*:* |
| x | libxfont | 1.2.1 | cpe:2.3:a:x:libxfont:1.2.1:*:*:*:*:*:*:* |
| x | libxfont | 1.2.2 | cpe:2.3:a:x:libxfont:1.2.2:*:*:*:*:*:*:* |
| x | libxfont | 1.2.3 | cpe:2.3:a:x:libxfont:1.2.3:*:*:*:*:*:*:* |
| x | libxfont | 1.2.4 | cpe:2.3:a:x:libxfont:1.2.4:*:*:*:*:*:*:* |
| x | libxfont | 1.2.5 | cpe:2.3:a:x:libxfont:1.2.5:*:*:*:*:*:*:* |
| x | libxfont | 1.2.6 | cpe:2.3:a:x:libxfont:1.2.6:*:*:*:*:*:*:* |
| x | libxfont | 1.2.7 | cpe:2.3:a:x:libxfont:1.2.7:*:*:*:*:*:*:* |
| x | libxfont | 1.2.8 | cpe:2.3:a:x:libxfont:1.2.8:*:*:*:*:*:*:* |
| x | libxfont | 1.2.9 | cpe:2.3:a:x:libxfont:1.2.9:*:*:*:*:*:*:* |
| x | libxfont | 1.3.0 | cpe:2.3:a:x:libxfont:1.3.0:*:*:*:*:*:*:* |
| x | libxfont | 1.3.1 | cpe:2.3:a:x:libxfont:1.3.1:*:*:*:*:*:*:* |
| x | libxfont | 1.3.2 | cpe:2.3:a:x:libxfont:1.3.2:*:*:*:*:*:*:* |
| x | libxfont | 1.3.3 | cpe:2.3:a:x:libxfont:1.3.3:*:*:*:*:*:*:* |
| x | libxfont | 1.3.4 | cpe:2.3:a:x:libxfont:1.3.4:*:*:*:*:*:*:* |
| x | libxfont | 1.4.0 | cpe:2.3:a:x:libxfont:1.4.0:*:*:*:*:*:*:* |
| x | libxfont | 1.4.1 | cpe:2.3:a:x:libxfont:1.4.1:*:*:*:*:*:*:* |
| x | libxfont | 1.4.2 | cpe:2.3:a:x:libxfont:1.4.2:*:*:*:*:*:*:* |
| freebsd | freebsd | — | cpe:2.3:o:freebsd:freebsd:*:*:*:*:*:*:*:* |
| netbsd | netbsd | — | cpe:2.3:o:netbsd:netbsd:*:*:*:*:*:*:*:* |
| openbsd | openbsd | <= 3.7 | cpe:2.3:o:openbsd:openbsd:*:*:*:*:*:*:*:* |
| openbsd | openbsd | 2.0 | cpe:2.3:o:openbsd:openbsd:2.0:*:*:*:*:*:*:* |
| openbsd | openbsd | 2.1 | cpe:2.3:o:openbsd:openbsd:2.1:*:*:*:*:*:*:* |
| openbsd | openbsd | 2.2 | cpe:2.3:o:openbsd:openbsd:2.2:*:*:*:*:*:*:* |
| openbsd | openbsd | 2.3 | cpe:2.3:o:openbsd:openbsd:2.3:*:*:*:*:*:*:* |
| openbsd | openbsd | 2.4 | cpe:2.3:o:openbsd:openbsd:2.4:*:*:*:*:*:*:* |
| openbsd | openbsd | 2.5 | cpe:2.3:o:openbsd:openbsd:2.5:*:*:*:*:*:*:* |
| openbsd | openbsd | 2.6 | cpe:2.3:o:openbsd:openbsd:2.6:*:*:*:*:*:*:* |
| openbsd | openbsd | 2.7 | cpe:2.3:o:openbsd:openbsd:2.7:*:*:*:*:*:*:* |
| openbsd | openbsd | 2.8 | cpe:2.3:o:openbsd:openbsd:2.8:*:*:*:*:*:*:* |
| openbsd | openbsd | 2.9 | cpe:2.3:o:openbsd:openbsd:2.9:*:*:*:*:*:*:* |
| openbsd | openbsd | 3.0 | cpe:2.3:o:openbsd:openbsd:3.0:*:*:*:*:*:*:* |
| openbsd | openbsd | 3.1 | cpe:2.3:o:openbsd:openbsd:3.1:*:*:*:*:*:*:* |
| openbsd | openbsd | 3.2 | cpe:2.3:o:openbsd:openbsd:3.2:*:*:*:*:*:*:* |
| openbsd | openbsd | 3.3 | cpe:2.3:o:openbsd:openbsd:3.3:*:*:*:*:*:*:* |
| openbsd | openbsd | 3.4 | cpe:2.3:o:openbsd:openbsd:3.4:*:*:*:*:*:*:* |
| openbsd | openbsd | 3.5 | cpe:2.3:o:openbsd:openbsd:3.5:*:*:*:*:*:*:* |
| openbsd | openbsd | 3.6 | cpe:2.3:o:openbsd:openbsd:3.6:*:*:*:*:*:*:* |