A vulnerability was found in htmldoc version 1.9.15 where the stack out-of-bounds read takes place in gif_get_code() and occurs when opening a malicious GIF file, which can result in a crash (segmentation fault).
Conclusion & alert: CVE-2022-0534 is rated Exploit Available (57.2/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 0.92%). 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 | 0.14% | 0.92% | +0.78% |
| 2 | 2025-11-21 | 0.32% | 0.14% | -0.18% |
| 3 | 2025-11-18 | — | 0.32% | — |
Full EPSS history (13 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 5.5 | 3.1 | MEDIUM |
|
1.8 | 3.6 | [email protected] |
| 4.3 | 2.0 | MEDIUM |
|
8.6 | 2.9 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
unimportant | CVE-2022-0534 unimportant priority: Debian including 1 source packages (htmldoc), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. | https://security-tracker.debian.org/tracker/CVE-2022-0534 |
gentoo
|
normal | CVE-2022-0534: 1 GLSA(s) (202405-07), 1 atom(s) (app-text/htmldoc); latest impact normal. | https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2022-0534 |
suse
|
medium | CVE-2022-0534 severity moderate: SUSE including 3 source package names (htmldoc-1.8.27-170.4.9.1, htmldoc-1.8.28-9.1, htmldoc-1.9.12-bp153.2.6.1), 4 product×package rows across 4 product lines (SUSE Package Hub 12 SP1, SUSE Package Hub 15 SP3, Subscription Management Tool 11 SP3, openSUSE Leap 15.3): Fixed 4. | https://www.suse.com/security/cve/CVE-2022-0534/ |
ubuntu
|
medium | CVE-2022-0534 medium priority: Ubuntu including 1 source packages (htmldoc), 13 status rows across 13 suites (bionic, focal, impish, jammy, kinetic, lunar, mantic, noble, oracular, plucky, trusty, upstream, xenial): released 5, ignored 4, not-affected 4. | https://ubuntu.com/security/CVE-2022-0534 |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| htmldoc_project | htmldoc | 1.9.15 | cpe:2.3:a:htmldoc_project:htmldoc:1.9.15:*:*:*:*:*:*:* |
| debian | debian_linux | 9.0 | cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* |
| URL | Tags |
|---|---|
| https://github.com/michaelrsweet/htmldoc/commit/312f0f9c12f26fbe015cd0e6cefa40e4b99017d9 | Patch Third Party Advisory |
| https://github.com/michaelrsweet/htmldoc/issues/463 | Exploit Issue Tracking Third Party Advisory |
| https://lists.debian.org/debian-lts-announce/2022/02/msg00022.html | Mailing List Third Party Advisory |