How severe is CVE-2010-5109?

CVE-2010-5109 has a CVSS 2.0 base score of 4.3, rated medium severity.

Is CVE-2010-5109 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (82nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2010-5109?

CVE-2010-5109 primarily affects Randall Hand Yerase's Tnef Stream Reader. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2010-5109?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2010-5109 published?

CVE-2010-5109 was published on 2014-05-05 and last updated on 2026-06-16.

CVE-2010-5109

CVE-2010-5109 is a medium-severity vulnerability in Randall Hand Yerase's Tnef Stream Reader with a CVSS 2.0 base score of 4.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-189.

Key facts

Severity: Medium (CVSS 2.0 base score 4.3)
EPSS exploit prediction: 2% (82nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-189
Affected product: Randall Hand Yerase's Tnef Stream Reader
Published: 2014-05-05
Last modified: 2026-06-16

Description

Off-by-one error in the DecompressRTF function in ytnef.c in Yerase's TNEF Stream Reader allows remote attackers to cause a denial of service (crash) via a crafted TNEF file, which triggers a buffer overflow.

Frequently asked questions

What is CVE-2010-5109?: Off-by-one error in the DecompressRTF function in ytnef.c in Yerase's TNEF Stream Reader allows remote attackers to cause a denial of service (crash) via a crafted TNEF file, which triggers a buffer overflow.
How severe is CVE-2010-5109?: CVE-2010-5109 has a CVSS 2.0 base score of 4.3, rated medium severity.
Is CVE-2010-5109 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (82nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2010-5109?: CVE-2010-5109 primarily affects Randall Hand Yerase's Tnef Stream Reader. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2010-5109?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2010-5109 published?: CVE-2010-5109 was published on 2014-05-05 and last updated on 2026-06-16.

References

Affected products (3)

cpe:2.3:a:randall_hand:yerase\'s_tnef_stream_reader:-:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:16:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:17:*:*:*:*:*:*:*

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