CVE-2026-86187 json
WWBN AVideo Weak PRNG Password Generation via External Login
published 2mo ago modified 2mo ago also EUVD-2026-72008 , GHSA-h3ff-c2qq-pr2g
Unreviewed: the maintainers' own advisory
Published by the maintainers on their GitHub repository WWBN/AVideo. GitHub has not reviewed it into the GitHub Advisory Database, so the affected packages and versions are the maintainers' word. Read the full advisory on GitHub.
- cvss
- 5.9
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.4%
- EPSS 0.4% chance of exploitation in 30 days, percentile 30%
- public exploits
- 0
- none known
Summary
WWBN AVideo generates passwords for external-login accounts using rand() instead of a cryptographic generator, producing only 31-bit integers. Attackers with access to password hashes can recover plaintext passwords in minutes through offline brute-force attacks due to unsalted MD5-based hashing.
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- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 2mo ago
Exploit prediction
0.36% chance of exploitation in the next 30 days, higher than 30% of all scored CVEs (FIRST EPSS, 2026-11-11).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 7.4 | CVSS:4.0/AV:N/AC:H/AT:P/PR:H/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N |
| CNA | 3.1 | 5.9 | CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:N |
| CNA | 4.0 | 7.4 | CVSS:4.0/AV:N/AC:H/AT:P/PR:H/UI:N/VC:H/VI:H/VA:N/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 |
Affected products
- WWBN AVideo
Classification
- Weakness
-
- CWE-330 Use of Insufficiently Random Values
References
-
github.com
/WWBN/AVideo/security/advisories/GHSA-h3ff-c2qq-pr2g
vendor-advisory, advisory
-
vulncheck.com
/advisories/wwbn-avideo-weak-prng-password-generation-via-external-login
third-party-advisory
Sources
- CVE List CVE-2026-86187
- NVD CVE-2026-86187
- Maintainer advisory GHSA-h3ff-c2qq-pr2g
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.
The maintainers of WWBN/AVideo published their own advisory on GitHub. Reviewed sources take precedence over it.