SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2017-11333

The vorbis_analysis_wrote function in lib/block.c in Xiph.Org libvorbis 1.3.5 allows remote attackers to cause a denial of service (OOM) via a crafted wav file.

EXPLOITMEDIUM 5.5EPSS 4.84%

Does this matter?

A public exploit is published in Exploit-DB, so the technical barrier is gone even though the severity is medium and EPSS is 4.8%. Treat it as high on anything reachable from the internet.

Description

The vorbis_analysis_wrote function in lib/block.c in Xiph.Org libvorbis 1.3.5 allows remote attackers to cause a denial of service (OOM) via a crafted wav file.

CVSS 3.0
5.5 MEDIUMCVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
EPSS
4.84% probability · 92th percentile
Public exploits
1 in Exploit-DB · first 31 July 2017
CISA KEV
Not listed
Weakness
CWE-476
Affected
xiph.org/libvorbis
Source
cve@mitre.org
EPSS trend
0%5%10%21 September 2026: 6.78%22 September 2026: 4.84%27 October 2026: 4.84%21 September 202627 October 2026

EPSS moved from 6.8% on 21 September 2026 to 4.8% on 27 October 2026. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”.

Public exploits (1)

Entries in Exploit-DB that cite this CVE. Links go to the Exploit-DB page and to the file in the public repository; nothing is hosted here. A verified tick means the Exploit-DB team confirmed the exploit works against the stated version.

EDB-IDTitleTypePublishedVerified
EDB-42399source ↗libvorbis 1.3.5 - Multiple Vulnerabilitieslinux · qflb.wudos31 July 2017no

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.