libaribcaption 1.1.0 through 1.1.2 contains a global out-of-bounds read in DecoderImpl::HandleGLGR() that reads past the 78-entry kLatinSpecialTable without an upper bound check. Attackers can supply crafted captions designating the Latin special set with ESC 28 4C followed by bytes 0x6F-0x7E to leak adjacent read-only data or crash decoding.

Attack Vector Local

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction Passive

Vulnerable System Confidentiality Impact None

Vulnerable System Integrity Impact None

Vulnerable System Availability Impact Low

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Local

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact Low

User Interaction Required

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Exploitation poc

Automatable no

Technical Impact partial

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
xqq libaribcaption unaffected
Version Status Constraints
1.1.0 affected ≤ 1.1.2

No data.

No data.

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Project Subscriptions

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Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://github.com/xqq/libaribcaption/blob/v1.1.2/src/decoder/b24_conv_tables.hpp cve-icon cve-icon
https://github.com/xqq/libaribcaption/blob/v1.1.2/src/decoder/decoder_impl.cpp cve-icon cve-icon
https://github.com/xqq/libaribcaption/commit/9917cb311c93d884cb820d122911a211042da26c cve-icon cve-icon
https://hackmd.io/@haindpwn/libaribcaption-latin-special-table-oob-read cve-icon cve-icon cve-icon
https://www.vulncheck.com/advisories/libaribcaption-1.1.0-through-1.1.2-out-of-bounds-read-via-decoderimpl-handleglgr cve-icon cve-icon
History

Mon, 19 Oct 2026 18:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Mon, 19 Oct 2026 14:15:00 +0000

Type Values Removed Values Added
Description libaribcaption 1.1.0 through 1.1.2 contains a global out-of-bounds read in DecoderImpl::HandleGLGR() that reads past the 78-entry kLatinSpecialTable without an upper bound check. Attackers can supply crafted captions designating the Latin special set with ESC 28 4C followed by bytes 0x6F-0x7E to leak adjacent read-only data or crash decoding.
Title libaribcaption 1.1.0 through 1.1.2 Out-of-Bounds Read via DecoderImpl::HandleGLGR
Weaknesses CWE-125
References
Metrics cvssV3_1

{'score': 3.3, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L'}

cvssV4_0

{'score': 4.8, 'vector': 'CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-10-19T17:55:16.813Z

Reserved: 2026-10-19T13:25:31.815Z

Link: CVE-2026-112284

cve-icon Vulnrichment

Updated: 2026-10-19T17:55:09.144Z

cve-icon NVD

Status : Deferred

Published: 2026-10-19T14:17:06.687

Modified: 2026-10-19T21:14:14.150

Link: CVE-2026-112284

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-19T16:15:07Z

Weaknesses