Multiple directory traversal and buffer overflow vulnerabilities were discovered in yTNEF, and in Evolution's TNEF parser that is derived from yTNEF. A crafted email could cause these applications to write data in arbitrary locations on the filesystem, crash, or potentially execute arbitrary code when decoding attachments.
CVE-2009-3721
HIGHNVD 7.87.8—
EchelonGraph scoreMEDIUM confidence
This high-severity CVE scores 7.8 under NVD CVSS v3. EPSS exploit probability: 0.3%, top 48% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
Triggered by: NVD CVSS baseline
Sources: epss, nvd
7.8
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
- High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 2%CVSS: 7.8Exploit: NoneExposed: 0
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 7.8
- EG Score
- 7.8(medium)
- EPSS
- 73.1%
- KEV
- Not listed
Published
May 26, 2021
Last Modified
November 21, 2024
References (4)
- secalert@redhathttp://www.ocert.org/advisories/ocert-2009-013.html
- secalert@redhathttps://bugzilla.redhat.com/show_bug.cgi?id=521662
- af854a3a-2127-422b-91ae-364da2661108http://www.ocert.org/advisories/ocert-2009-013.html
- af854a3a-2127-422b-91ae-364da2661108https://bugzilla.redhat.com/show_bug.cgi?id=521662
Frequently asked(5)
What is CVE-2009-3721?
CVE-2009-3721 is a high vulnerability published on May 26, 2021. Multiple directory traversal and buffer overflow vulnerabilities were discovered in yTNEF, and in Evolution's TNEF parser that is derived from yTNEF. A crafted email could cause these applications to write data in arbitrary locations on the filesystem, crash, or potentially execute arbitrary code…
When was CVE-2009-3721 disclosed?
CVE-2009-3721 was first published in the National Vulnerability Database on May 26, 2021, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2009-3721 actively exploited?
CVE-2009-3721 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 73.1% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2009-3721?
CVE-2009-3721 has a CVSS v3 base score of 7.8 (NVD).
How do I remediate CVE-2009-3721?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2009-3721, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2009-3721
Is Your Infrastructure Affected by CVE-2009-3721?
EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.