CVE-2011-0522: n/a vulnerability

CVE-2011-0522: The StripTags function in (1) the USF decoder (modules/codec/subtitles/subsdec.c) and (2) the Text decoder...

The StripTags function in (1) the USF decoder (modules/codec/subtitles/subsdec.c) and (2) the Text decoder (modules/codec/subtitles/subsusf.c) in VideoLAN VLC Media Player 1.1 before 1.1.6-rc allows remote attackers to execute arbitrary code via a subtitle with an opening "<" without a closing ">" in an MKV file, which triggers heap memory corruption, as demonstrated using refined-australia-blu720p-sample.mkv.

UnknownCVSS not scoredNot KEV-listedUpdatedAug 6, 2024, 21:58 UTC (UTC+00:00)

Security readout for executives and security teams

CVE-2011-0522 is an old VLC Media Player flaw where a specially crafted MKV file with malformed subtitle markup can corrupt memory and potentially run code when opened. The business risk is mainly legacy desktops or media-processing systems that still use VLC 1.1 before 1.1.6-rc on untrusted video files. Exposure is most likely on legacy endpoints, kiosks, forensic workstations, or media ingestion workflows using affected VLC versions to open untrusted MKV or subtitle-bearing files. Treat this as a legacy-software cleanup item with high impact if affected systems process untrusted media. It is not shown as actively exploited, but arbitrary code execution through a file-open workflow warrants prompt remediation where old VLC remains. Mitigation focus: Upgrade VLC from affected 1.1 builds to 1.1.6-rc or later fixed releases.; Remove legacy VLC versions from managed endpoint images and media processing hosts.; Avoid opening untrusted MKV or subtitle files on systems until VLC is confirmed fixed..

Prepared: Jun 28, 2026, 01:17 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

description · low confidence lookup

Execution behavior lookup

The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.

Open ATT&CK lookup

cve · low confidence lookup

CVE-2011-0522 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

Open ATT&CK lookup

Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: Feb 7, 2011, 20:19 UTC (UTC+00:00)

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors

0Timeline events

0ADP providers

3Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

CVE List V5 sourceCVE List V5
vlcmediaplayer-usf-bo(65029)CVE reference · vdb-entry, x_refsource_XF
oval:org.mitre.oval:def:12414CVE reference · vdb-entry, signature

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

n/an/an/aListed

Weakness

CWE details

No CWE listed

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.