PatchTheCVECVE-2017-9433: Document Liberation Project libmwaw before 2017-04-08 has an out-of-bounds write caused by a heap-based buffer
CVE-2017-9433 is a critical-severity flaw (CVSS 9.8) affecting libmwaw. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
Document Liberation Project libmwaw before 2017-04-08 has an out-of-bounds write caused by a heap-based buffer overflow related to the MsWrd1Parser::readFootnoteCorrespondance function in lib/MsWrd1Parser.cxx.
Why this priority
- Critical severity
- Remotely exploitable, no login, no user action
A fixed release or distro patch exists.
Risk facts
| CVSS score | 9.8 (Critical) |
| Attack vector | Network (remote) |
| Attack complexity | Low |
| Privileges needed | None |
| User interaction | None |
| EPSS exploit chance | 2.3% (top 17%) |
| CISA exploited list | No |
| Weakness | CWE-119 |
| Published | 2017-06-05 |
| Last modified | 2026-06-17 |
Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2017-9433?
libmwaw: upgrade to newer than 0.3.11. Exact commands for each OS are on this page.
Is CVE-2017-9433 being exploited?
CVE-2017-9433 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2017-9433 affect?
CVE-2017-9433 affects libmwaw. Severity is critical (CVSS 9.8). Document Liberation Project libmwaw before 2017-04-08 has an out-of-bounds write caused by a heap-based buffer overflow related to the MsWrd1Parser::readFootnoteCorrespondance function in lib/MsWrd1Parser.cxx.
How urgent is CVE-2017-9433?
Priority 60/100. Critical severity; Remotely exploitable, no login, no user action