Subtitle Processor 7.7.1 .m3u SEH Unicode Buffer Overflow
Published Aug 20, 2025
8.5
HIGHCVSS 4.0
EPSS 0.34%
Description
Subtitle Processor 7.7.1 contains a buffer overflow vulnerability in its .m3u file parser. When a crafted playlist file is opened, the application converts input to Unicode and copies it to a fixed-size stack buffer without proper bounds checking. This allows an attacker to overwrite the Structured Exception Handler (SEH) and execute arbitrary code.
Affected products
-
- Version 0StatusaffectedConstraints<=7.7.1
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Subtitle Processor | Subtitle Processor | n/a |
|
No data.
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
1 other source (NVD) ▾
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
No CVSS v2.0 score for this CVE.
This CVE is not in the KEV list.
CISA SSVC (Vulnrichment)
Stakeholder-Specific Vulnerability Categorization from CISA ADP.
Exploitation
PoCAutomatable
NoTechnical Impact
TotalDecision
n/aAssessed Aug 20, 2025 · SSVC 2.0.3
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2025–2026- EPSS v4
- EPSS v5
Percentile over time
- EPSS v4
- EPSS v5
Table of values (7 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.34% (0.00343) | 25.39th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.32% (0.00320) | 23.48th | v5 (v2026.06.15) |
| May 6, 2026 | 9.70% (0.09703) | 92.96th | v4 (v2025.03.14) |
| Jan 16, 2026 | 8.44% (0.08442) | 92.07th | v4 (v2025.03.14) |
| Dec 20, 2025 | 12.31% (0.12315) | 93.62th | v4 (v2025.03.14) |
| Oct 8, 2025 | 9.50% (0.09501) | 92.44th | v4 (v2025.03.14) |
| Aug 21, 2025 | 0.02% (0.00022) | 4.04th | v4 (v2025.03.14) |
References (6)
- https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/windows/fileformat/subtitle_processor_m3u_bof.rb exploit
- https://sourceforge.net/projects/subtitleproc/ product
- https://www.exploit-db.com/exploits/17217 exploit
- https://www.exploit-db.com/exploits/17225 exploit
- https://www.fortiguard.com/encyclopedia/ips/26849 third-party-advisory
- https://www.vulncheck.com/advisories/subtitle-processor-m3u-seh-unicode-buffer-overflow third-party-advisory
Change history (0)
No recorded changes yet.