Security readout for executives and security teams
Plain-English summary
CVE-2026-1418 is a memory corruption flaw in GPAC’s SRT subtitle import code. A local user can trigger an out-of-bounds write, potentially affecting confidentiality, integrity, and availability at a limited level. Public exploit details are reported, but the source bundle does not show confirmed active exploitation or CISA KEV listing.
Executive priority
Treat as a moderate-priority remediation item. It is not described as remotely exploitable, but public exploit disclosure and media-processing exposure make timely patch review important. Prioritize shared systems and automated workflows handling untrusted subtitle content.
Technical view
The flaw affects gf_text_import_srt_bifs in src/scene_manager/text_to_bifs.c within GPAC SRT Subtitle Import. GPAC versions 2.0 through 2.4.0 are listed as affected. CVSS 3.1 is 5.3 with local attack vector, low complexity, low privileges, and limited C/I/A impact. CWE mappings include CWE-119 and CWE-787.
Likely exposure
Exposure is mainly systems where GPAC is installed and used by local users or automated media workflows processing SRT subtitles. Internet-facing exposure is not indicated by the provided sources. Multi-user workstations, build systems, media conversion pipelines, or sandboxed processing services should be checked first.
Exploitation context
The source bundle states the attack is local and that exploit details have been publicly disclosed. It does not provide evidence of active exploitation in the wild, and KEV is false. Risk increases where untrusted subtitle files are processed by GPAC in privileged or shared environments.
Researcher notes
Evidence is limited to the CVE bundle, VulDB references, GitHub issue, and referenced patch commit. No fixed upstream version is named in the provided sources. Avoid assuming remote reachability; the vector is local. Validate patch status directly against GPAC project guidance.
Mitigation direction
- Identify GPAC installations and versions, especially 2.0 through 2.4.0.
- Review vendor or project guidance for an official fixed release.
- Evaluate patch commit 10c73b82cf0e367383d091db38566a0e4fe71772 before deployment.
- Restrict GPAC processing of untrusted SRT files until remediated.
- Run GPAC media processing with least privilege and isolation.
Validation and detection
- Confirm whether GPAC is installed on endpoints, servers, or media pipelines.
- Check GPAC version against listed affected versions through 2.4.0.
- Verify whether the referenced patch is present in deployed source or packages.
- Review workflows that ingest SRT subtitles from users or external parties.
- Monitor vendor issue tracker for fixed release and additional guidance.
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-119: 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 lookupCWE-787: 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 lookupCVE-2026-1418 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
- Medium
- CVSS
- 5.3 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C
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.
CVSS vector scores
1 official scoreWe 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:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C1.83.4Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
5.3MediumVector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C
Source materials
- CVE List V5 sourceCVE List V5
- VDB-342807 | GPAC SRT Subtitle Import text_to_bifs.c gf_text_import_srt_bifs out-of-bounds writeCVE reference · vdb-entry, technical-description
- VDB-342807 | CTI Indicators (IOB, IOC, IOA)CVE reference · signature, permissions-required
- Submit #736544 | gpac v2.4.0 Out-of-bounds WriteCVE reference · third-party-advisory
- https://github.com/gpac/gpac/issues/3425CVE reference · issue-tracking, exploit
- https://github.com/enocknt/gpac/commit/10c73b82cf0e367383d091db38566a0e4fe71772CVE reference · patch
- https://github.com/gpac/gpac/CVE reference · product
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.