Out-of-bounds read in varnish-software Varnish Enterprise
Priority LOW 33CWE-125Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-125 and the CVSS impact.
Summary
Varnish Enterprise before 6.0.13r13 allows remote attackers to obtain sensitive information via an out-of-bounds read for range requests on ephemeral MSE4 stevedore objects.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00351 28th percentileScored 2026-11-07
Fix Fixed Varnish Enterprise (varnish-software): 6.0.13r13
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| varnish-software | Varnish Enterprise | 6 to before 6.0.13r13 | 6.0.13r13 | Patch available | CNA |
- Varnish Enterprise Vendorvarnish-software Affected 6 to before 6.0.13r13 Fixed in 6.0.13r13 Patch available CNA
CPE configurations NVD · 11
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:varnish-software:varnish_enterprise:6.0.13:r10:*:*:*:*:*:* | 6.0.13 r10 | Vulnerable | varnish-software |
| cpe:2.3:a:varnish-software:varnish_enterprise:6.0.13:r11:*:*:*:*:*:* | 6.0.13 r11 | Vulnerable | varnish-software |
| cpe:2.3:a:varnish-software:varnish_enterprise:6.0.13:r12:*:*:*:*:*:* | 6.0.13 r12 | Vulnerable | varnish-software |
| cpe:2.3:a:varnish-software:varnish_enterprise:6.0.13:r2:*:*:*:*:*:* | 6.0.13 r2 | Vulnerable | varnish-software |
| cpe:2.3:a:varnish-software:varnish_enterprise:6.0.13:r3:*:*:*:*:*:* | 6.0.13 r3 | Vulnerable | varnish-software |
| cpe:2.3:a:varnish-software:varnish_enterprise:6.0.13:r4:*:*:*:*:*:* | 6.0.13 r4 | Vulnerable | varnish-software |
| cpe:2.3:a:varnish-software:varnish_enterprise:6.0.13:r5:*:*:*:*:*:* | 6.0.13 r5 | Vulnerable | varnish-software |
| cpe:2.3:a:varnish-software:varnish_enterprise:6.0.13:r6:*:*:*:*:*:* | 6.0.13 r6 | Vulnerable | varnish-software |
| cpe:2.3:a:varnish-software:varnish_enterprise:6.0.13:r7:*:*:*:*:*:* | 6.0.13 r7 | Vulnerable | varnish-software |
| cpe:2.3:a:varnish-software:varnish_enterprise:6.0.13:r8:*:*:*:*:*:* | 6.0.13 r8 | Vulnerable | varnish-software |
- cpe:2.3:a:varnish-software:varnish_enterprise:6.0.13:r10:*:*:*:*:*:* Versions 6.0.13 r10 Vulnerable ·varnish-software
- cpe:2.3:a:varnish-software:varnish_enterprise:6.0.13:r11:*:*:*:*:*:* Versions 6.0.13 r11 Vulnerable ·varnish-software
- cpe:2.3:a:varnish-software:varnish_enterprise:6.0.13:r12:*:*:*:*:*:* Versions 6.0.13 r12 Vulnerable ·varnish-software
- cpe:2.3:a:varnish-software:varnish_enterprise:6.0.13:r2:*:*:*:*:*:* Versions 6.0.13 r2 Vulnerable ·varnish-software
- cpe:2.3:a:varnish-software:varnish_enterprise:6.0.13:r3:*:*:*:*:*:* Versions 6.0.13 r3 Vulnerable ·varnish-software
- cpe:2.3:a:varnish-software:varnish_enterprise:6.0.13:r4:*:*:*:*:*:* Versions 6.0.13 r4 Vulnerable ·varnish-software
- cpe:2.3:a:varnish-software:varnish_enterprise:6.0.13:r5:*:*:*:*:*:* Versions 6.0.13 r5 Vulnerable ·varnish-software
- cpe:2.3:a:varnish-software:varnish_enterprise:6.0.13:r6:*:*:*:*:*:* Versions 6.0.13 r6 Vulnerable ·varnish-software
- cpe:2.3:a:varnish-software:varnish_enterprise:6.0.13:r7:*:*:*:*:*:* Versions 6.0.13 r7 Vulnerable ·varnish-software
- cpe:2.3:a:varnish-software:varnish_enterprise:6.0.13:r8:*:*:*:*:*:* Versions 6.0.13 r8 Vulnerable ·varnish-software
Show 1 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:varnish-software:varnish_enterprise:6.0.13:r9:*:*:*:*:*:* | 6.0.13 r9 | Vulnerable | varnish-software |
- cpe:2.3:a:varnish-software:varnish_enterprise:6.0.13:r9:*:*:*:*:*:* Versions 6.0.13 r9 Vulnerable ·varnish-software
Remediation
- Fix · CNA Varnish Enterprise (varnish-software) Fixed in 6.0.13r13
Timeline
- 2026-10-02 Threatist record created from CVE-2025-30347
- 2026-10-03 Alias added: GHSA-ccgv-pvfh-c426
References
More varnish-software Varnish Enterprise vulnerabilities
- TI-2026-26733 Varnish Cache before 8.0.1 and Varnish Enterprise before 6.0.16r12, in certain unchecked… CVSS 3.1CRITICAL 9.8
- TI-2023-21726 libvmod-digest before 1.0.3, as used in Varnish Enterprise 6.0.x before 6.0.11r5, has an… CVSS 3.1MEDIUM 6.5
- TI-2026-29163 Resource allocation without limits in varnish-software Varnish Enterprise CVSS 3.1HIGH 7.5
- TI-2026-29162 Varnish Cache 9 before 9.0.1 and Varnish Enterprise before 6.0.16r11 allows a "workspace… CVSS 3.1HIGH 7.5
- TI-2025-21652 Varnish Cache before 7.6.2 and Varnish Enterprise before 6.0.13r10 allow client-side desync via HTTP/1 requests. CVSS 3.1MEDIUM 5.4
Sources
- CVE-2025-30347 · CVE Program
- CVE-2025-30347 · NVD
- FIRST EPSS
- GHSA-ccgv-pvfh-c426 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences