Real Networks Netzip Classic 7.5.1.86 File Parsing Buffer Overflow
Published Aug 13, 2025
9.3
CRITICALCVSS 4.0
EPSS 0.43%
Description
Real Networks Netzip Classic version 7.5.1.86 is vulnerable to a stack-based buffer overflow when parsing a specially crafted ZIP archive. The vulnerability is triggered when the application attempts to process a file name within the archive that exceeds the expected buffer size. Exploitation allows arbitrary code execution under the context of the victim user when the ZIP file is opened.
Affected products
-
- Version 7.5.1.86StatusaffectedConstraints-
- 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 | ||||||
|---|---|---|---|---|---|---|---|---|---|
| RealNetworks Inc. | Netzip Classic | 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:A/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
1 other source (NVD) ▾
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/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
NoneAutomatable
NoTechnical Impact
TotalDecision
n/aAssessed Aug 14, 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 (8 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.43% (0.00427) | 34.59th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.40% (0.00398) | 31.34th | v5 (v2026.06.15) |
| Jun 9, 2026 | 21.72% (0.21721) | 95.86th | v4 (v2025.03.14) |
| Apr 29, 2026 | 9.70% (0.09703) | 92.94th | v4 (v2025.03.14) |
| Jan 9, 2026 | 8.44% (0.08442) | 92.06th | v4 (v2025.03.14) |
| Dec 13, 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 14, 2025 | 0.02% (0.00016) | 2.06th | v4 (v2025.03.14) |
References (5)
- https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/windows/fileformat/real_networks_netzip_bof.rb exploit
- https://www.exploit-db.com/exploits/16083 exploit
- https://www.exploit-db.com/exploits/17985 exploit
- https://www.softpedia.com/get/Compression-tools/NetZip-Classic.shtml product
- https://www.vulncheck.com/advisories/real-networks-netzip-classic-file-parsing-buffer-overflow third-party-advisory
Change history (0)
No recorded changes yet.