An issue was discovered in Exempi before 2.4.3. It allows remote attackers to cause a denial of service (invalid memcpy with resultant use-after-free) or possibly have unspecified other impact via a .pdf file containing JPEG data, related to XMPFiles/source/FormatSupport/ReconcileTIFF.cpp, XMPFiles/source/FormatSupport/TIFF_MemoryReader.cpp, and XMPFiles/source/FormatSupport/TIFF_Support.hpp.
Conclusion & alert: CVE-2017-18234 is rated High Exploit Risk (70.8/100): CVSS High severity, with medium exploitation likelihood (EPSS 0.62%). 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 | 2025-12-31 | 0.34% | 0.62% | +0.29% |
| 2 | 2025-12-30 | 0.81% | 0.34% | -0.48% |
| 3 | 2025-10-11 | — | 0.81% | — |
Full EPSS history (14 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
|
low | CVE-2017-18234 low priority: Debian including 1 source packages (exempi), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. | https://security-tracker.debian.org/tracker/CVE-2017-18234 |
redhat
|
low | — | https://access.redhat.com/security/cve/CVE-2017-18234 |
suse
|
medium | — | https://www.suse.com/security/cve/CVE-2017-18234/ |
ubuntu
|
medium | CVE-2017-18234 medium priority: Ubuntu including 1 source packages (exempi), 5 status rows across 5 suites (artful, bionic, trusty, upstream, xenial): released 3, not-affected 2. | https://ubuntu.com/security/CVE-2017-18234 |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| exempi_project | exempi | < 2.4.3 | cpe:2.3:a:exempi_project:exempi:*:*:*:*:*:*:*:* |
| debian | debian_linux | 7.0 | cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:* |
| canonical | ubuntu_linux | 14.04 | cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:* |
| canonical | ubuntu_linux | 16.04 | cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:* |
| canonical | ubuntu_linux | 17.10 | cpe:2.3:o:canonical:ubuntu_linux:17.10:*:*:*:*:*:*:* |
| URL | Tags |
|---|---|
| https://access.redhat.com/errata/RHSA-2019:2048 | |
| https://bugs.freedesktop.org/show_bug.cgi?id=100397 | Exploit Issue Tracking Third Party Advisory |
| https://cgit.freedesktop.org/exempi/commit/?id=c26d5beb60a5a85f76259f50ed3e08c8169b0a0c | Patch Third Party Advisory |
| https://lists.debian.org/debian-lts-announce/2018/03/msg00013.html | Mailing List Third Party Advisory |
| https://usn.ubuntu.com/3668-1/ | Third Party Advisory |