Security readout for executives and security teams
Plain-English summary
CVE-2026-34253 is a high-severity memory safety flaw in ogg123 from vorbis-tools 1.4.3. Malformed remote-control input can crash the utility and may allow code execution. Public metadata does not identify broad product impact, so exposure should be verified by package and usage.
Executive priority
Treat as high priority where ogg123 remote control is present or reachable. For ordinary desktops or servers without ogg123 usage, prioritize inventory first, then patch or disable based on confirmed exposure.
Technical view
The issue is a CWE-124 buffer underflow in ogg123's remotethread function in remote.c. The published CVSS 3.1 score is 8.2 with network attack vector, low complexity, no privileges, and no user interaction. Impact is primarily availability, with low integrity impact stated by the vector.
Likely exposure
Likely exposure is limited to systems that install or ship vorbis-tools 1.4.3 and use ogg123 remote-control functionality. The affected-product metadata is incomplete, so Linux distribution package status should be checked directly.
Exploitation context
The source bundle does not show CISA KEV listing or cited confirmation of active exploitation. The CVSS vector rates exploitation conditions as low complexity and unauthenticated, but no exploit evidence or weaponized details are provided.
Researcher notes
Evidence names vorbis-tools 1.4.3 and remote.c, but structured affected-product data is n/a. Validate downstream package applicability carefully. Do not assume every vorbis-tools build exposes the vulnerable path in operational use.
Mitigation direction
- Inventory systems for vorbis-tools 1.4.3 and ogg123 usage.
- Check Xiph and distribution advisories for fixed package guidance.
- Disable or restrict ogg123 remote-control functionality where not required.
- Update affected packages when vendor fixes become available.
- Avoid exposing related control interfaces to untrusted networks.
Validation and detection
- Confirm installed vorbis-tools and ogg123 package versions.
- Identify services, scripts, or users invoking ogg123 remote control.
- Review Red Hat and vendor VEX status for your distributions.
- Monitor crash reports or logs involving ogg123 remote input handling.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
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.
CWE-124: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupExecution 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 lookupCVE-2026-34253 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- High
- CVSS
- 8.2 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H
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.
SSVC decision data
CVSS vector scores
2 official scoresWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H3.94.2CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H3.94.2redhat-SADPVulnerability scoring details
Base CVSS 3.1 score
8.2HighVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H
Base CVSS 3.1 score
8.2HighVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H
Vulnerability timeline
Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.
- CVE reservedCVE Program
The CVE ID was reserved by the assigning CNA.
- ADP timelineredhat-SADP
Made public.
- CVE publishedCVE Program
The CVE record was published.
- ADP timelineredhat-SADP
Reported to Red Hat.
- CVE updatedCVE Program
The CVE record metadata indicates this as the latest update time.
ADP provider summaries
- 2026-05-15T16:01:29.955Z: Reported to Red Hat.
- 2026-05-15T00:00:00.000Z: Made public.
Source materials
- CVE List V5 sourceCVE List V5
- https://github.com/xiph/vorbis-tools/blob/0b3fbf42eb3897d32f4a75baa2dc915a4ca45e8e/ogg123/remote.c#L153CVE reference, mitre
- https://github.com/xiph/vorbis-tools/archive/refs/tags/v1.4.3.tar.gzCVE reference, mitre
- https://gitlab.xiph.org/xiph/vorbis-tools/-/work_items/2332CVE reference, mitre
- https://access.redhat.com/security/cve/CVE-2026-34253CVE reference, redhat-SADP · vdb-entry, x_refsource_REDHAT
- RHBZ#2477925CVE reference, redhat-SADP · issue-tracking, x_refsource_REDHAT
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-34253.jsonCVE reference, redhat-SADP · x_sadp-csaf-vex
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Buffer Underwrite ('Buffer Underflow')
Buffer Underwrite ('Buffer Underflow') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.