VulnerabilityModified
CVE-2017-8911
This might lead to invalid write operations, controlled by an attacker.
CRITICAL 9.8EPSS 1.93%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.93%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
An integer underflow has been identified in the unicode_to_utf8() function in tnef 1.4.14. This might lead to invalid write operations, controlled by an attacker.
- CVSS 3.0
- 9.8 CRITICALCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 1.93% probability · 80th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-191
- Affected
- tnef project/tnef
- Source
- cve@mitre.org
EPSS 1.9% since 27 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- http://www.debian.org/security/2017/dsa-3869
- https://github.com/verdammelt/tnef/issues/23Issue Tracking, Patch, Third Party Advisory
- https://security.gentoo.org/glsa/201708-02
- http://www.debian.org/security/2017/dsa-3869
- https://github.com/verdammelt/tnef/issues/23Issue Tracking, Patch, Third Party Advisory
- https://security.gentoo.org/glsa/201708-02
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.