stunnel before 5.00, when using fork threading, does not properly update the state of the…
Priority LOW 24CWE-332Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Medium
- Impact type
- —
- Confidentiality · integrity · availability
- Partial · None · None
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA.
Summary
stunnel before 5.00, when using fork threading, does not properly update the state of the OpenSSL pseudo-random number generator (PRNG), which causes subsequent children with the same process ID to use the same entropy pool and allows remote attackers to obtain private keys for EC (ECDSA) or DSA certificates.
Why it matters now
EPSS 0.02155 82nd percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 113
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:stunnel:stunnel:*:*:*:*:*:*:*:* | up to 4.56 | Vulnerable | Stunnel |
| cpe:2.3:a:stunnel:stunnel:0.1:*:*:*:*:*:*:* | 0.1 | Vulnerable | Stunnel |
| cpe:2.3:a:stunnel:stunnel:1.0:*:*:*:*:*:*:* | 1.0 | Vulnerable | Stunnel |
| cpe:2.3:a:stunnel:stunnel:1.1:*:*:*:*:*:*:* | 1.1 | Vulnerable | Stunnel |
| cpe:2.3:a:stunnel:stunnel:1.2:*:*:*:*:*:*:* | 1.2 | Vulnerable | Stunnel |
| cpe:2.3:a:stunnel:stunnel:1.3:*:*:*:*:*:*:* | 1.3 | Vulnerable | Stunnel |
| cpe:2.3:a:stunnel:stunnel:1.4:*:*:*:*:*:*:* | 1.4 | Vulnerable | Stunnel |
| cpe:2.3:a:stunnel:stunnel:1.5:*:*:*:*:*:*:* | 1.5 | Vulnerable | Stunnel |
| cpe:2.3:a:stunnel:stunnel:1.6:*:*:*:*:*:*:* | 1.6 | Vulnerable | Stunnel |
| cpe:2.3:a:stunnel:stunnel:2.0:*:*:*:*:*:*:* | 2.0 | Vulnerable | Stunnel |
- cpe:2.3:a:stunnel:stunnel:*:*:*:*:*:*:*:* Versions up to 4.56 Vulnerable ·Stunnel
- cpe:2.3:a:stunnel:stunnel:0.1:*:*:*:*:*:*:* Versions 0.1 Vulnerable ·Stunnel
- cpe:2.3:a:stunnel:stunnel:1.0:*:*:*:*:*:*:* Versions 1.0 Vulnerable ·Stunnel
- cpe:2.3:a:stunnel:stunnel:1.1:*:*:*:*:*:*:* Versions 1.1 Vulnerable ·Stunnel
- cpe:2.3:a:stunnel:stunnel:1.2:*:*:*:*:*:*:* Versions 1.2 Vulnerable ·Stunnel
- cpe:2.3:a:stunnel:stunnel:1.3:*:*:*:*:*:*:* Versions 1.3 Vulnerable ·Stunnel
- cpe:2.3:a:stunnel:stunnel:1.4:*:*:*:*:*:*:* Versions 1.4 Vulnerable ·Stunnel
- cpe:2.3:a:stunnel:stunnel:1.5:*:*:*:*:*:*:* Versions 1.5 Vulnerable ·Stunnel
- cpe:2.3:a:stunnel:stunnel:1.6:*:*:*:*:*:*:* Versions 1.6 Vulnerable ·Stunnel
- cpe:2.3:a:stunnel:stunnel:2.0:*:*:*:*:*:*:* Versions 2.0 Vulnerable ·Stunnel
Show 103 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:stunnel:stunnel:2.1:*:*:*:*:*:*:* | 2.1 | Vulnerable | Stunnel |
| cpe:2.3:a:stunnel:stunnel:3.0:*:*:*:*:*:*:* | 3.0 | Vulnerable | Stunnel |
| cpe:2.3:a:stunnel:stunnel:3.0:b1:*:*:*:*:*:* | 3.0 b1 | Vulnerable | Stunnel |
| cpe:2.3:a:stunnel:stunnel:3.0:b2:*:*:*:*:*:* | 3.0 b2 | Vulnerable | Stunnel |
| cpe:2.3:a:stunnel:stunnel:3.0:b3:*:*:*:*:*:* | 3.0 b3 | Vulnerable | Stunnel |
| cpe:2.3:a:stunnel:stunnel:3.0:b4:*:*:*:*:*:* | 3.0 b4 | Vulnerable | Stunnel |
| cpe:2.3:a:stunnel:stunnel:3.0:b5:*:*:*:*:*:* | 3.0 b5 | Vulnerable | Stunnel |
| cpe:2.3:a:stunnel:stunnel:3.0:b6:*:*:*:*:*:* | 3.0 b6 | Vulnerable | Stunnel |
| cpe:2.3:a:stunnel:stunnel:3.0:b7:*:*:*:*:*:* | 3.0 b7 | Vulnerable | Stunnel |
| cpe:2.3:a:stunnel:stunnel:3.1:*:*:*:*:*:*:* | 3.1 | Vulnerable | Stunnel |
| cpe:2.3:a:stunnel:stunnel:3.2:*:*:*:*:*:*:* | 3.2 | Vulnerable | Stunnel |
| cpe:2.3:a:stunnel:stunnel:3.3:*:*:*:*:*:*:* | 3.3 | Vulnerable | Stunnel |
| cpe:2.3:a:stunnel:stunnel:3.4a:*:*:*:*:*:*:* | 3.4a | Vulnerable | Stunnel |
| cpe:2.3:a:stunnel:stunnel:3.5:*:*:*:*:*:*:* | 3.5 | Vulnerable | Stunnel |
| cpe:2.3:a:stunnel:stunnel:3.6:*:*:*:*:*:*:* | 3.6 | Vulnerable | Stunnel |
| cpe:2.3:a:stunnel:stunnel:3.7:*:*:*:*:*:*:* | 3.7 | Vulnerable | Stunnel |
| cpe:2.3:a:stunnel:stunnel:3.8:*:*:*:*:*:*:* | 3.8 | Vulnerable | Stunnel |
| cpe:2.3:a:stunnel:stunnel:3.8:p1:*:*:*:*:*:* | 3.8 p1 | Vulnerable | Stunnel |
| cpe:2.3:a:stunnel:stunnel:3.8:p2:*:*:*:*:*:* | 3.8 p2 | Vulnerable | Stunnel |
| cpe:2.3:a:stunnel:stunnel:3.8:p3:*:*:*:*:*:* | 3.8 p3 | Vulnerable | Stunnel |
| cpe:2.3:a:stunnel:stunnel:3.8:p4:*:*:*:*:*:* | 3.8 p4 | Vulnerable | Stunnel |
| cpe:2.3:a:stunnel:stunnel:3.8p1:*:*:*:*:*:*:* | 3.8p1 | Vulnerable | Stunnel |
| cpe:2.3:a:stunnel:stunnel:3.8p2:*:*:*:*:*:*:* | 3.8p2 | Vulnerable | Stunnel |
| cpe:2.3:a:stunnel:stunnel:3.8p3:*:*:*:*:*:*:* | 3.8p3 | Vulnerable | Stunnel |
| cpe:2.3:a:stunnel:stunnel:3.8p4:*:*:*:*:*:*:* | 3.8p4 | Vulnerable | Stunnel |
| cpe:2.3:a:stunnel:stunnel:3.9:*:*:*:*:*:*:* | 3.9 | Vulnerable | Stunnel |
| cpe:2.3:a:stunnel:stunnel:3.10:*:*:*:*:*:*:* | 3.10 | Vulnerable | Stunnel |
| cpe:2.3:a:stunnel:stunnel:3.11:*:*:*:*:*:*:* | 3.11 | Vulnerable | Stunnel |
| cpe:2.3:a:stunnel:stunnel:3.12:*:*:*:*:*:*:* | 3.12 | Vulnerable | Stunnel |
| cpe:2.3:a:stunnel:stunnel:3.13:*:*:*:*:*:*:* | 3.13 | Vulnerable | Stunnel |
| cpe:2.3:a:stunnel:stunnel:3.14:*:*:*:*:*:*:* | 3.14 | Vulnerable | Stunnel |
| cpe:2.3:a:stunnel:stunnel:3.15:*:*:*:*:*:*:* | 3.15 | Vulnerable | Stunnel |
| cpe:2.3:a:stunnel:stunnel:3.16:*:*:*:*:*:*:* | 3.16 | Vulnerable | Stunnel |
| cpe:2.3:a:stunnel:stunnel:3.17:*:*:*:*:*:*:* | 3.17 | Vulnerable | Stunnel |
| cpe:2.3:a:stunnel:stunnel:3.18:*:*:*:*:*:*:* | 3.18 | Vulnerable | Stunnel |
| cpe:2.3:a:stunnel:stunnel:3.19:*:*:*:*:*:*:* | 3.19 | Vulnerable | Stunnel |
| cpe:2.3:a:stunnel:stunnel:3.20:*:*:*:*:*:*:* | 3.20 | Vulnerable | Stunnel |
| cpe:2.3:a:stunnel:stunnel:3.21:*:*:*:*:*:*:* | 3.21 | Vulnerable | Stunnel |
| cpe:2.3:a:stunnel:stunnel:3.21a:*:*:*:*:*:*:* | 3.21a | Vulnerable | Stunnel |
| cpe:2.3:a:stunnel:stunnel:3.21b:*:*:*:*:*:*:* | 3.21b | Vulnerable | Stunnel |
| cpe:2.3:a:stunnel:stunnel:3.21c:*:*:*:*:*:*:* | 3.21c | Vulnerable | Stunnel |
| cpe:2.3:a:stunnel:stunnel:3.22:*:*:*:*:*:*:* | 3.22 | Vulnerable | Stunnel |
| cpe:2.3:a:stunnel:stunnel:3.23:*:*:*:*:*:*:* | 3.23 | Vulnerable | Stunnel |
| cpe:2.3:a:stunnel:stunnel:3.24:*:*:*:*:*:*:* | 3.24 | Vulnerable | Stunnel |
| cpe:2.3:a:stunnel:stunnel:3.25:*:*:*:*:*:*:* | 3.25 | Vulnerable | Stunnel |
| cpe:2.3:a:stunnel:stunnel:3.26:*:*:*:*:*:*:* | 3.26 | Vulnerable | Stunnel |
| cpe:2.3:a:stunnel:stunnel:4.00:*:*:*:*:*:*:* | 4.00 | Vulnerable | Stunnel |
| cpe:2.3:a:stunnel:stunnel:4.0:*:*:*:*:*:*:* | 4.0 | Vulnerable | Stunnel |
| cpe:2.3:a:stunnel:stunnel:4.01:*:*:*:*:*:*:* | 4.01 | Vulnerable | Stunnel |
| cpe:2.3:a:stunnel:stunnel:4.02:*:*:*:*:*:*:* | 4.02 | Vulnerable | Stunnel |
| cpe:2.3:a:stunnel:stunnel:4.03:*:*:*:*:*:*:* | 4.03 | Vulnerable | Stunnel |
| cpe:2.3:a:stunnel:stunnel:4.04:*:*:*:*:*:*:* | 4.04 | Vulnerable | Stunnel |
| cpe:2.3:a:stunnel:stunnel:4.05:*:*:*:*:*:*:* | 4.05 | Vulnerable | Stunnel |
| cpe:2.3:a:stunnel:stunnel:4.06:*:*:*:*:*:*:* | 4.06 | Vulnerable | Stunnel |
| cpe:2.3:a:stunnel:stunnel:4.07:*:*:*:*:*:*:* | 4.07 | Vulnerable | Stunnel |
| cpe:2.3:a:stunnel:stunnel:4.08:*:*:*:*:*:*:* | 4.08 | Vulnerable | Stunnel |
| cpe:2.3:a:stunnel:stunnel:4.09:*:*:*:*:*:*:* | 4.09 | Vulnerable | Stunnel |
| cpe:2.3:a:stunnel:stunnel:4.10:*:*:*:*:*:*:* | 4.10 | Vulnerable | Stunnel |
| cpe:2.3:a:stunnel:stunnel:4.11:*:*:*:*:*:*:* | 4.11 | Vulnerable | Stunnel |
| cpe:2.3:a:stunnel:stunnel:4.12:*:*:*:*:*:*:* | 4.12 | Vulnerable | Stunnel |
| cpe:2.3:a:stunnel:stunnel:4.13:*:*:*:*:*:*:* | 4.13 | Vulnerable | Stunnel |
| cpe:2.3:a:stunnel:stunnel:4.14:*:*:*:*:*:*:* | 4.14 | Vulnerable | Stunnel |
| cpe:2.3:a:stunnel:stunnel:4.15:*:*:*:*:*:*:* | 4.15 | Vulnerable | Stunnel |
| cpe:2.3:a:stunnel:stunnel:4.16:*:*:*:*:*:*:* | 4.16 | Vulnerable | Stunnel |
| cpe:2.3:a:stunnel:stunnel:4.17:*:*:*:*:*:*:* | 4.17 | Vulnerable | Stunnel |
| cpe:2.3:a:stunnel:stunnel:4.18:*:*:*:*:*:*:* | 4.18 | Vulnerable | Stunnel |
| cpe:2.3:a:stunnel:stunnel:4.19:*:*:*:*:*:*:* | 4.19 | Vulnerable | Stunnel |
| cpe:2.3:a:stunnel:stunnel:4.20:*:*:*:*:*:*:* | 4.20 | Vulnerable | Stunnel |
| cpe:2.3:a:stunnel:stunnel:4.21:*:*:*:*:*:*:* | 4.21 | Vulnerable | Stunnel |
| cpe:2.3:a:stunnel:stunnel:4.22:*:*:*:*:*:*:* | 4.22 | Vulnerable | Stunnel |
| cpe:2.3:a:stunnel:stunnel:4.23:*:*:*:*:*:*:* | 4.23 | Vulnerable | Stunnel |
| cpe:2.3:a:stunnel:stunnel:4.24:*:*:*:*:*:*:* | 4.24 | Vulnerable | Stunnel |
| cpe:2.3:a:stunnel:stunnel:4.25:*:*:*:*:*:*:* | 4.25 | Vulnerable | Stunnel |
| cpe:2.3:a:stunnel:stunnel:4.26:*:*:*:*:*:*:* | 4.26 | Vulnerable | Stunnel |
| cpe:2.3:a:stunnel:stunnel:4.27:*:*:*:*:*:*:* | 4.27 | Vulnerable | Stunnel |
| cpe:2.3:a:stunnel:stunnel:4.28:*:*:*:*:*:*:* | 4.28 | Vulnerable | Stunnel |
| cpe:2.3:a:stunnel:stunnel:4.29:*:*:*:*:*:*:* | 4.29 | Vulnerable | Stunnel |
| cpe:2.3:a:stunnel:stunnel:4.30:*:*:*:*:*:*:* | 4.30 | Vulnerable | Stunnel |
| cpe:2.3:a:stunnel:stunnel:4.31:*:*:*:*:*:*:* | 4.31 | Vulnerable | Stunnel |
| cpe:2.3:a:stunnel:stunnel:4.32:*:*:*:*:*:*:* | 4.32 | Vulnerable | Stunnel |
| cpe:2.3:a:stunnel:stunnel:4.33:*:*:*:*:*:*:* | 4.33 | Vulnerable | Stunnel |
| cpe:2.3:a:stunnel:stunnel:4.34:*:*:*:*:*:*:* | 4.34 | Vulnerable | Stunnel |
| cpe:2.3:a:stunnel:stunnel:4.35:*:*:*:*:*:*:* | 4.35 | Vulnerable | Stunnel |
| cpe:2.3:a:stunnel:stunnel:4.36:*:*:*:*:*:*:* | 4.36 | Vulnerable | Stunnel |
| cpe:2.3:a:stunnel:stunnel:4.37:*:*:*:*:*:*:* | 4.37 | Vulnerable | Stunnel |
| cpe:2.3:a:stunnel:stunnel:4.38:*:*:*:*:*:*:* | 4.38 | Vulnerable | Stunnel |
| cpe:2.3:a:stunnel:stunnel:4.39:*:*:*:*:*:*:* | 4.39 | Vulnerable | Stunnel |
| cpe:2.3:a:stunnel:stunnel:4.40:*:*:*:*:*:*:* | 4.40 | Vulnerable | Stunnel |
| cpe:2.3:a:stunnel:stunnel:4.41:*:*:*:*:*:*:* | 4.41 | Vulnerable | Stunnel |
| cpe:2.3:a:stunnel:stunnel:4.42:*:*:*:*:*:*:* | 4.42 | Vulnerable | Stunnel |
| cpe:2.3:a:stunnel:stunnel:4.43:*:*:*:*:*:*:* | 4.43 | Vulnerable | Stunnel |
| cpe:2.3:a:stunnel:stunnel:4.44:*:*:*:*:*:*:* | 4.44 | Vulnerable | Stunnel |
| cpe:2.3:a:stunnel:stunnel:4.45:*:*:*:*:*:*:* | 4.45 | Vulnerable | Stunnel |
| cpe:2.3:a:stunnel:stunnel:4.46:*:*:*:*:*:*:* | 4.46 | Vulnerable | Stunnel |
| cpe:2.3:a:stunnel:stunnel:4.47:*:*:*:*:*:*:* | 4.47 | Vulnerable | Stunnel |
| cpe:2.3:a:stunnel:stunnel:4.48:*:*:*:*:*:*:* | 4.48 | Vulnerable | Stunnel |
| cpe:2.3:a:stunnel:stunnel:4.49:*:*:*:*:*:*:* | 4.49 | Vulnerable | Stunnel |
| cpe:2.3:a:stunnel:stunnel:4.50:*:*:*:*:*:*:* | 4.50 | Vulnerable | Stunnel |
| cpe:2.3:a:stunnel:stunnel:4.51:*:*:*:*:*:*:* | 4.51 | Vulnerable | Stunnel |
| cpe:2.3:a:stunnel:stunnel:4.52:*:*:*:*:*:*:* | 4.52 | Vulnerable | Stunnel |
| cpe:2.3:a:stunnel:stunnel:4.53:*:*:*:*:*:*:* | 4.53 | Vulnerable | Stunnel |
| cpe:2.3:a:stunnel:stunnel:4.54:*:*:*:*:*:*:* | 4.54 | Vulnerable | Stunnel |
| cpe:2.3:a:stunnel:stunnel:4.55:*:*:*:*:*:*:* | 4.55 | Vulnerable | Stunnel |
- cpe:2.3:a:stunnel:stunnel:2.1:*:*:*:*:*:*:* Versions 2.1 Vulnerable ·Stunnel
- cpe:2.3:a:stunnel:stunnel:3.0:*:*:*:*:*:*:* Versions 3.0 Vulnerable ·Stunnel
- cpe:2.3:a:stunnel:stunnel:3.0:b1:*:*:*:*:*:* Versions 3.0 b1 Vulnerable ·Stunnel
- cpe:2.3:a:stunnel:stunnel:3.0:b2:*:*:*:*:*:* Versions 3.0 b2 Vulnerable ·Stunnel
- cpe:2.3:a:stunnel:stunnel:3.0:b3:*:*:*:*:*:* Versions 3.0 b3 Vulnerable ·Stunnel
- cpe:2.3:a:stunnel:stunnel:3.0:b4:*:*:*:*:*:* Versions 3.0 b4 Vulnerable ·Stunnel
- cpe:2.3:a:stunnel:stunnel:3.0:b5:*:*:*:*:*:* Versions 3.0 b5 Vulnerable ·Stunnel
- cpe:2.3:a:stunnel:stunnel:3.0:b6:*:*:*:*:*:* Versions 3.0 b6 Vulnerable ·Stunnel
- cpe:2.3:a:stunnel:stunnel:3.0:b7:*:*:*:*:*:* Versions 3.0 b7 Vulnerable ·Stunnel
- cpe:2.3:a:stunnel:stunnel:3.1:*:*:*:*:*:*:* Versions 3.1 Vulnerable ·Stunnel
- cpe:2.3:a:stunnel:stunnel:3.2:*:*:*:*:*:*:* Versions 3.2 Vulnerable ·Stunnel
- cpe:2.3:a:stunnel:stunnel:3.3:*:*:*:*:*:*:* Versions 3.3 Vulnerable ·Stunnel
- cpe:2.3:a:stunnel:stunnel:3.4a:*:*:*:*:*:*:* Versions 3.4a Vulnerable ·Stunnel
- cpe:2.3:a:stunnel:stunnel:3.5:*:*:*:*:*:*:* Versions 3.5 Vulnerable ·Stunnel
- cpe:2.3:a:stunnel:stunnel:3.6:*:*:*:*:*:*:* Versions 3.6 Vulnerable ·Stunnel
- cpe:2.3:a:stunnel:stunnel:3.7:*:*:*:*:*:*:* Versions 3.7 Vulnerable ·Stunnel
- cpe:2.3:a:stunnel:stunnel:3.8:*:*:*:*:*:*:* Versions 3.8 Vulnerable ·Stunnel
- cpe:2.3:a:stunnel:stunnel:3.8:p1:*:*:*:*:*:* Versions 3.8 p1 Vulnerable ·Stunnel
- cpe:2.3:a:stunnel:stunnel:3.8:p2:*:*:*:*:*:* Versions 3.8 p2 Vulnerable ·Stunnel
- cpe:2.3:a:stunnel:stunnel:3.8:p3:*:*:*:*:*:* Versions 3.8 p3 Vulnerable ·Stunnel
- cpe:2.3:a:stunnel:stunnel:3.8:p4:*:*:*:*:*:* Versions 3.8 p4 Vulnerable ·Stunnel
- cpe:2.3:a:stunnel:stunnel:3.8p1:*:*:*:*:*:*:* Versions 3.8p1 Vulnerable ·Stunnel
- cpe:2.3:a:stunnel:stunnel:3.8p2:*:*:*:*:*:*:* Versions 3.8p2 Vulnerable ·Stunnel
- cpe:2.3:a:stunnel:stunnel:3.8p3:*:*:*:*:*:*:* Versions 3.8p3 Vulnerable ·Stunnel
- cpe:2.3:a:stunnel:stunnel:3.8p4:*:*:*:*:*:*:* Versions 3.8p4 Vulnerable ·Stunnel
- cpe:2.3:a:stunnel:stunnel:3.9:*:*:*:*:*:*:* Versions 3.9 Vulnerable ·Stunnel
- cpe:2.3:a:stunnel:stunnel:3.10:*:*:*:*:*:*:* Versions 3.10 Vulnerable ·Stunnel
- cpe:2.3:a:stunnel:stunnel:3.11:*:*:*:*:*:*:* Versions 3.11 Vulnerable ·Stunnel
- cpe:2.3:a:stunnel:stunnel:3.12:*:*:*:*:*:*:* Versions 3.12 Vulnerable ·Stunnel
- cpe:2.3:a:stunnel:stunnel:3.13:*:*:*:*:*:*:* Versions 3.13 Vulnerable ·Stunnel
- cpe:2.3:a:stunnel:stunnel:3.14:*:*:*:*:*:*:* Versions 3.14 Vulnerable ·Stunnel
- cpe:2.3:a:stunnel:stunnel:3.15:*:*:*:*:*:*:* Versions 3.15 Vulnerable ·Stunnel
- cpe:2.3:a:stunnel:stunnel:3.16:*:*:*:*:*:*:* Versions 3.16 Vulnerable ·Stunnel
- cpe:2.3:a:stunnel:stunnel:3.17:*:*:*:*:*:*:* Versions 3.17 Vulnerable ·Stunnel
- cpe:2.3:a:stunnel:stunnel:3.18:*:*:*:*:*:*:* Versions 3.18 Vulnerable ·Stunnel
- cpe:2.3:a:stunnel:stunnel:3.19:*:*:*:*:*:*:* Versions 3.19 Vulnerable ·Stunnel
- cpe:2.3:a:stunnel:stunnel:3.20:*:*:*:*:*:*:* Versions 3.20 Vulnerable ·Stunnel
- cpe:2.3:a:stunnel:stunnel:3.21:*:*:*:*:*:*:* Versions 3.21 Vulnerable ·Stunnel
- cpe:2.3:a:stunnel:stunnel:3.21a:*:*:*:*:*:*:* Versions 3.21a Vulnerable ·Stunnel
- cpe:2.3:a:stunnel:stunnel:3.21b:*:*:*:*:*:*:* Versions 3.21b Vulnerable ·Stunnel
- cpe:2.3:a:stunnel:stunnel:3.21c:*:*:*:*:*:*:* Versions 3.21c Vulnerable ·Stunnel
- cpe:2.3:a:stunnel:stunnel:3.22:*:*:*:*:*:*:* Versions 3.22 Vulnerable ·Stunnel
- cpe:2.3:a:stunnel:stunnel:3.23:*:*:*:*:*:*:* Versions 3.23 Vulnerable ·Stunnel
- cpe:2.3:a:stunnel:stunnel:3.24:*:*:*:*:*:*:* Versions 3.24 Vulnerable ·Stunnel
- cpe:2.3:a:stunnel:stunnel:3.25:*:*:*:*:*:*:* Versions 3.25 Vulnerable ·Stunnel
- cpe:2.3:a:stunnel:stunnel:3.26:*:*:*:*:*:*:* Versions 3.26 Vulnerable ·Stunnel
- cpe:2.3:a:stunnel:stunnel:4.00:*:*:*:*:*:*:* Versions 4.00 Vulnerable ·Stunnel
- cpe:2.3:a:stunnel:stunnel:4.0:*:*:*:*:*:*:* Versions 4.0 Vulnerable ·Stunnel
- cpe:2.3:a:stunnel:stunnel:4.01:*:*:*:*:*:*:* Versions 4.01 Vulnerable ·Stunnel
- cpe:2.3:a:stunnel:stunnel:4.02:*:*:*:*:*:*:* Versions 4.02 Vulnerable ·Stunnel
- cpe:2.3:a:stunnel:stunnel:4.03:*:*:*:*:*:*:* Versions 4.03 Vulnerable ·Stunnel
- cpe:2.3:a:stunnel:stunnel:4.04:*:*:*:*:*:*:* Versions 4.04 Vulnerable ·Stunnel
- cpe:2.3:a:stunnel:stunnel:4.05:*:*:*:*:*:*:* Versions 4.05 Vulnerable ·Stunnel
- cpe:2.3:a:stunnel:stunnel:4.06:*:*:*:*:*:*:* Versions 4.06 Vulnerable ·Stunnel
- cpe:2.3:a:stunnel:stunnel:4.07:*:*:*:*:*:*:* Versions 4.07 Vulnerable ·Stunnel
- cpe:2.3:a:stunnel:stunnel:4.08:*:*:*:*:*:*:* Versions 4.08 Vulnerable ·Stunnel
- cpe:2.3:a:stunnel:stunnel:4.09:*:*:*:*:*:*:* Versions 4.09 Vulnerable ·Stunnel
- cpe:2.3:a:stunnel:stunnel:4.10:*:*:*:*:*:*:* Versions 4.10 Vulnerable ·Stunnel
- cpe:2.3:a:stunnel:stunnel:4.11:*:*:*:*:*:*:* Versions 4.11 Vulnerable ·Stunnel
- cpe:2.3:a:stunnel:stunnel:4.12:*:*:*:*:*:*:* Versions 4.12 Vulnerable ·Stunnel
- cpe:2.3:a:stunnel:stunnel:4.13:*:*:*:*:*:*:* Versions 4.13 Vulnerable ·Stunnel
- cpe:2.3:a:stunnel:stunnel:4.14:*:*:*:*:*:*:* Versions 4.14 Vulnerable ·Stunnel
- cpe:2.3:a:stunnel:stunnel:4.15:*:*:*:*:*:*:* Versions 4.15 Vulnerable ·Stunnel
- cpe:2.3:a:stunnel:stunnel:4.16:*:*:*:*:*:*:* Versions 4.16 Vulnerable ·Stunnel
- cpe:2.3:a:stunnel:stunnel:4.17:*:*:*:*:*:*:* Versions 4.17 Vulnerable ·Stunnel
- cpe:2.3:a:stunnel:stunnel:4.18:*:*:*:*:*:*:* Versions 4.18 Vulnerable ·Stunnel
- cpe:2.3:a:stunnel:stunnel:4.19:*:*:*:*:*:*:* Versions 4.19 Vulnerable ·Stunnel
- cpe:2.3:a:stunnel:stunnel:4.20:*:*:*:*:*:*:* Versions 4.20 Vulnerable ·Stunnel
- cpe:2.3:a:stunnel:stunnel:4.21:*:*:*:*:*:*:* Versions 4.21 Vulnerable ·Stunnel
- cpe:2.3:a:stunnel:stunnel:4.22:*:*:*:*:*:*:* Versions 4.22 Vulnerable ·Stunnel
- cpe:2.3:a:stunnel:stunnel:4.23:*:*:*:*:*:*:* Versions 4.23 Vulnerable ·Stunnel
- cpe:2.3:a:stunnel:stunnel:4.24:*:*:*:*:*:*:* Versions 4.24 Vulnerable ·Stunnel
- cpe:2.3:a:stunnel:stunnel:4.25:*:*:*:*:*:*:* Versions 4.25 Vulnerable ·Stunnel
- cpe:2.3:a:stunnel:stunnel:4.26:*:*:*:*:*:*:* Versions 4.26 Vulnerable ·Stunnel
- cpe:2.3:a:stunnel:stunnel:4.27:*:*:*:*:*:*:* Versions 4.27 Vulnerable ·Stunnel
- cpe:2.3:a:stunnel:stunnel:4.28:*:*:*:*:*:*:* Versions 4.28 Vulnerable ·Stunnel
- cpe:2.3:a:stunnel:stunnel:4.29:*:*:*:*:*:*:* Versions 4.29 Vulnerable ·Stunnel
- cpe:2.3:a:stunnel:stunnel:4.30:*:*:*:*:*:*:* Versions 4.30 Vulnerable ·Stunnel
- cpe:2.3:a:stunnel:stunnel:4.31:*:*:*:*:*:*:* Versions 4.31 Vulnerable ·Stunnel
- cpe:2.3:a:stunnel:stunnel:4.32:*:*:*:*:*:*:* Versions 4.32 Vulnerable ·Stunnel
- cpe:2.3:a:stunnel:stunnel:4.33:*:*:*:*:*:*:* Versions 4.33 Vulnerable ·Stunnel
- cpe:2.3:a:stunnel:stunnel:4.34:*:*:*:*:*:*:* Versions 4.34 Vulnerable ·Stunnel
- cpe:2.3:a:stunnel:stunnel:4.35:*:*:*:*:*:*:* Versions 4.35 Vulnerable ·Stunnel
- cpe:2.3:a:stunnel:stunnel:4.36:*:*:*:*:*:*:* Versions 4.36 Vulnerable ·Stunnel
- cpe:2.3:a:stunnel:stunnel:4.37:*:*:*:*:*:*:* Versions 4.37 Vulnerable ·Stunnel
- cpe:2.3:a:stunnel:stunnel:4.38:*:*:*:*:*:*:* Versions 4.38 Vulnerable ·Stunnel
- cpe:2.3:a:stunnel:stunnel:4.39:*:*:*:*:*:*:* Versions 4.39 Vulnerable ·Stunnel
- cpe:2.3:a:stunnel:stunnel:4.40:*:*:*:*:*:*:* Versions 4.40 Vulnerable ·Stunnel
- cpe:2.3:a:stunnel:stunnel:4.41:*:*:*:*:*:*:* Versions 4.41 Vulnerable ·Stunnel
- cpe:2.3:a:stunnel:stunnel:4.42:*:*:*:*:*:*:* Versions 4.42 Vulnerable ·Stunnel
- cpe:2.3:a:stunnel:stunnel:4.43:*:*:*:*:*:*:* Versions 4.43 Vulnerable ·Stunnel
- cpe:2.3:a:stunnel:stunnel:4.44:*:*:*:*:*:*:* Versions 4.44 Vulnerable ·Stunnel
- cpe:2.3:a:stunnel:stunnel:4.45:*:*:*:*:*:*:* Versions 4.45 Vulnerable ·Stunnel
- cpe:2.3:a:stunnel:stunnel:4.46:*:*:*:*:*:*:* Versions 4.46 Vulnerable ·Stunnel
- cpe:2.3:a:stunnel:stunnel:4.47:*:*:*:*:*:*:* Versions 4.47 Vulnerable ·Stunnel
- cpe:2.3:a:stunnel:stunnel:4.48:*:*:*:*:*:*:* Versions 4.48 Vulnerable ·Stunnel
- cpe:2.3:a:stunnel:stunnel:4.49:*:*:*:*:*:*:* Versions 4.49 Vulnerable ·Stunnel
- cpe:2.3:a:stunnel:stunnel:4.50:*:*:*:*:*:*:* Versions 4.50 Vulnerable ·Stunnel
- cpe:2.3:a:stunnel:stunnel:4.51:*:*:*:*:*:*:* Versions 4.51 Vulnerable ·Stunnel
- cpe:2.3:a:stunnel:stunnel:4.52:*:*:*:*:*:*:* Versions 4.52 Vulnerable ·Stunnel
- cpe:2.3:a:stunnel:stunnel:4.53:*:*:*:*:*:*:* Versions 4.53 Vulnerable ·Stunnel
- cpe:2.3:a:stunnel:stunnel:4.54:*:*:*:*:*:*:* Versions 4.54 Vulnerable ·Stunnel
- cpe:2.3:a:stunnel:stunnel:4.55:*:*:*:*:*:*:* Versions 4.55 Vulnerable ·Stunnel
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
Not affected: 3 products
- Red Hat Enterprise Linux 5
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
Timeline
- 2026-10-02 Threatist record created from CVE-2014-0016
- 2026-10-03 Alias added: GHSA-xxr9-37w5-wgwc
References
More Stunnel vulnerabilities
- TI-2011-02592 stunnel 4.40 and 4.41 might allow remote attackers to execute arbitrary code or cause a… CVSS 2.0HIGH 9.3
- TI-2001-00060 Format string vulnerability in stunnel 3.8 and earlier allows attackers to execute… CVSS 2.0HIGH 10.0
- TI-2002-00002 Format string vulnerability in stunnel before 3.22 when used in client mode for (1) smtp… CVSS 2.0HIGH 7.5
- TI-2021-03525 Improper certificate validation in stunnel CVSS 3.1HIGH 7.5
- TI-2013-01549 stunnel 4.21 through 4.54, when CONNECT protocol negotiation and NTLM authentication are… CVSS 2.0MEDIUM 6.6
- TI-2008-02320 The OCSP functionality in stunnel before 4.24 does not properly search certificate… CVSS 2.0MEDIUM 6.8
Sources
- CVE-2014-0016 · CVE Program
- CVE-2014-0016 · NVD
- FIRST EPSS
- GHSA-xxr9-37w5-wgwc · GitHub Advisory Database · CC BY 4.0
- CVE-2014-0016 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences